CHANDRASHEKHAR JOSHI

Electrical Engineering Department

University of California, Los Angeles

Los Angeles, CA 90095

Tel: (310) 825-7279 FAX: (310) 206-8220

e-mail: joshi@ee.ucla.edu

PUBLICATIONS: C. Joshi

2021

Journals

Joshi, C ,"New ways to smash particles." Scientific American, 55-61 (July 2021).
Shaw, J.L., Romo-Gonzalez, M.A., Lemos, N., King, P.M., Bruhaug, G., Dorrer, C., Kruschwitz, B., Waxer, L., Williams, G.J., Ambat, M.V., McKie, M.M., Sinclair, M.D., Joshi, C., Chen, H., Palastro, J.P., Albert, F., and Froula, D.H., "Microcoulomb-Class Self-Modulated Laser Wakefield Accelerator on OMEGA EP", Scientific Reports, 11(1):1 - 8 (202l)

Xu, X., Cesar, D.B., Corde, S., Yakimenko, V., Hogan, M.J., Joshi, C., Marinelli, A., and Mori, W.B., "Generation of Terawatt Attosecond Pulses from Relativistic Transition Radiation", Physical Review Letters, 126(9):1 - 6 (March 2021)

Albert, F., Couprie, M.E., Debus, A., Downer, M.C., Faure, J., Flacco, A., Gizzi, L.A., Grismayer, T., Huebl, A., Joshi, C., Labat, M., Leemans, W.P., Maier, A.R., Mangles, S.P.D., Mason, P., Mathieu, F., Muggli, P., Nischiuchi, M., Osterhoff, J., Rajeev, P.P., Schramm, U., Schreiber, J., Thomas, A.G.R., Vay, J.L., Vranic, M., and Zeil, K, "2020 roadmap on plasma accelerators", New Journal of Physics, 23(3):1 - 34 (March 2021)

Wu, Y., Hua, J., Zhou, Z.Zhang, J., Liu, S., Peng, B., Fang, Y., Ning, X., Nie, Z., Li, F., Zhang, C., Pai, C.H., Du, Y., Lu, W., Mori, W.B., and Joshi, C., "High-throughput injection acceleration of electron bunches from a linear accelerator to a laser wakefield accelerator", Nature Physics, 1-12 (March 2021)

Sampath, A., Davoine, X., Corde, S., Gremillet, L., Gilljohann, M., Sangal, M., Keitel, C.H., Ariniello, R., Cary, J., Ekerfelt, H., Emma, C., Fiuza, F., Fujii, H., Gilljohann, M., Hogan, M., Joshi, C., Knetsh, A., Lee, V., Litos, M., Marsh, K.A., Nie, Z., O'Shea, B., Peterson, J.R., San Miguel Claveria, P., Storey, D., Wu, Y., Xu, X., Zhang, C., and Tamburini, M., "Extremely Dense Gamma-Ray Pulses in Electron Beam-Multifoil Collisions", Physical Review Letters, 126(064801):1 - 7 (February 2021).

Nie, Z., Li F, Morales F, Patchkovskii S, Smirnova O, An W, Nambu N, Matteo D, Marsh KA, Tsung F, Mori WB, C.Joshi, "In Situ generation of high-energy spin-polarized electrons in a beam-driven plasma wakefield accelerator", Physical Review Letters, 126(054801):1 - 6 (February 2021)

King PM, Miller K, Lemos N, Shaw JL, Kraus BF, Thibodeau M, Hegelich BM, Hinojosa J, Michel P, Joshi C, Marsh KA, "Predominant contribution of direct laser acceleration to high-energy electron spectra in a low-density self-modulated laser wakefield accelerator", Physical Review Accelerators and Beams, 12(24):1 - 8 (January 2021)

Conferences

Sahai, A.A., Golkowski, M., Harid, V., Katsouleas, T., Resta-Lopez, J., Joshi, C., Thomas, A., Zimmermann, F., and Taborek, P, "NANOPLASMONIC ACCELERATORS TOWARDS TENS OF TERAVOLTS PER METER GRADIENTS USING NANOMATERIALS", IPAC, 1-4 (2021)
Matteo, D., Welch, E., Tochitsky, S., Schunemann, P.G., Guha, S., and Joshi, C, "Generation of high power two-color 10 um and 5 um Picosecond Pulses in Nonlinear Crystals", CLEO, (2021)

Tovey, D., Pigeon, J.J., Tochitsky, S.Y., Louwrens, G., Ben-Zvi, I., Joshi, C., Martyshkin, D., Federov, V., Karki, K., and Mirov, S, "10 um lasing in multi-atmosphere CO2 optically pumped by a tunable 4.3 um laser", CLEO, (2021)

Nie, Z., Marsh, K.A., Nambu, N., Huang, C.K., and Joshi, C, "Ultrafast High-Sensitivity Characterization of Refractive Index Transients Induced by Plasmas or Kerr Effect Using Cross-Polarized Temporal Interferometry", CLEO, 1-2 (2021)

2020

Journals

Huang, C.K., Zhang, C., Nie, Z., Marsh, K.A., Clayton, C.E., and Joshi, C, "Conservation of angular momentum in second harmonic generation from under-dense plasmas", Nature Communications Physics, 3(1):1 - 9 (2020)
Zhang, C., Hua, J., Wu, Y., Fang, Y., Ma, Y., Zhang, T., Liu, S., Peng, B., He, Y., Huang, C.K., Marsh, K.A., Mori, W.B., Lu, W. and Joshi, C, "Measurements of growth and saturation of electron Weibel instability in optical-field ionized plasmas", Physical Review Letters, 125(25):1 - 6 (December 2020)
Assman, R.W., Weikum, M.K., Akhter, T., Alesini, D., Alexandrova, A.S., Anania, M.P., Andreev, N.E., Andriyash, I., Artioli, M, Aschkhin, A., Audet, T., Bacci, A., Barna, I.F., Bartocci, S., Bayramian, A., Beaton, A., Beck, A., Bellaveglia, M., Beluze, A., Bernhard, A., Biagioni, A., Bielawski, S., Bisesto, F.G., Bonatto, A., Boulton, L., Brandi, F., Brinkmann, R., Briquez, F., Brottier, F., Brundermann, E., Buscher, M., Bonomo, B., Bussmann, M.H., Bussolino, G., Campana, P., Cantarella, S., Cassou, K., Chance, A., Chen, M., Chiadroni, E., Cianchi, A., Cioeta, F., Clarke, J.A., Cole, J.M., Costa, G., Comprei, M.E., Cowley, J., Croia, M., CRos, B., Crump, P.A., D'Arcy, R., Dattoll, G., Del Dotto, A., Delerue, N., Del Franco, M., Delinjlkolas, P., De Nicola, S., Dias, J.M., Di Giovenale, D., Diomede, M., Di Pasquale, E., Di Pirro, G., Di Radio, G., Dorda, U., Erlandson, A.C., Ertel, K., Esposito, A.,Falcoz, F., Falone, A., Fedele, R., Ferran Pousa, A., Ferrario, M., Filippi, F., Fils, J., Fiore, G., Florioto, R., Fonseca, R.A., Franzini, G., Galimberti, M., Gallo, A., Galvin, T.C., Ghaith, A., Ghigo, A., Glove, D.., GIrlbono, A., Gizzi, L.A., Gruner, F.J., Habib, A.F., Haefner, C., Heinemann, T., Helm, A., Hidding, B., Holzer, B.J., Hooker, S.M., Hosokai, T., Huber, M., Ibison, M., Incremona, S., Irman, A., Iungo, F., Jafarinia, F.J., Jakobsson, O., Jaroszynskin, D.A., Jaster-Merz, S., Joshi, C., Kaluza, M., Kando, M., Karger, P., Kononenko, O.S., Korn, G., Kostyukov, I., Kruchinin, K.O., Labbet, L., Le Blanc, C., Lechner, C., Lee, P., Leemans, W., Lehrach, A., Li, X., Libov, V., Lipschitz, A., Lindstrom, C.A., Litvenko, V., Lu, W., Lundh, O., Maier, A.R., Malka, V., Manahan, G.G., Mangles, S.P.D, Marcelli, A., Marchetti, B., Marcouille, O., Maricchino, A., Marteau, F., Martinez de la Ossa, A., Martins, J.L.,, "EuPRAXIA Conceptual Design Report", The European Physical Journal Special Topics, 229:3675 - 4284 (December 2020)
D. Matteo, J. Pigeon, S. Tochitsky, I. Ben-Zvi, and C. Joshi, "Measurements of Nonlinear Absorption of Intense 10 μm Laser Pulses in n-Ge, GaAs, and ZnSe", Applied Optics Vol. 59,Issue 26, pp. 7912-7917 (2020)
D. Tovey, J.J. Pigeon, S. Ya Tochitsky, G. Louwrens, I. Ben-Zvi, C. Joshi, D. Martyshkin, V. Federov, K. Karki, and S. Mirov, "Gain Dynamics Optically pumped CO2 amplifier" , J. Appl. Phys. 128, 103103 (2020); doi: 10.1063/5.0014020

S. Tochitsky, A. Pak, F. Fiuza, D. Haberberger, N. Lemos, A. Link, D. H. Froula, and C. Joshi. "Laser-driven collisionless shock acceleration of ions from near-critical plasmas." Physics of Plasmas 27, no. 8 (2020): 083102.

C. Joshi, A. Caldwell, P. Muggli, "Outlook for the Future", Particle Physics Reference Library (May 2020)

J. J. Pigeon, D. A. Matteo, S. Ya Tochitsky, I. Ben-Zvi, and C. Joshi, "Measurements of the nonlinear refractive index of AgGaSe2, GaSe, and ZnSe at 10 μm", Journal of the Optical Society of America B Vol. 37, Issue 7,pp. 2076-2079 (2020) (Editor’s Pick).

Z. Nie, C.H. Pai, J. Zhang,X.Ning, J. Hua, Y. He,Y. Wu, Q. Su, S.Liu,Y. Ma ,Z.Cheng, W. Lu, H.H. Chin, J. Wang, C. Zhang, W.B. Mori, and C. Joshi," Photon deceleration in plasma wakes generates single-cycle relativistic tunable infrared pulses". Nature Communications. 2020 Jun 3;11(1):1-8.

C. Joshi, S. Corde, W.B. Mori, "Perspectives on the generation of electron beams from plasma based accelerators and their near and long term applications", Phys. Plasmas 27, 070602 (2020) (Featured Article- Editor’s Pick)

Y. Wan, I. Andriyash, C.H. Pai, J.F. Hua, C. Zhang, F. Li, Y. Wu, Z. Nie, W.B. Mori, and W. Lu. "Ion acceleration with an ultra-intense two-frequency laser tweezer." New Journal of Physics (April 3rd 2020). arXiv:1707.07290 New J. Phys. 22 052002 (2020)

Y. Zhao, W. An, X.L. Xu, F.Li, L. Hildebrand, MJ. Hogan, V. Yakimenko, C. Joshi, and W.B. Mori, "Emittance Preservation through density ramp matching sections in a plasma wakefield accelerator", Physical Review Accelerators and Beams, 23, 011302 (2020).

Zhang, Chaojie, Chen-Kang Huang, Ken A. Marsh, and Chan Joshi. "Probing thermal Weibel instability in optical-field-ionized plasmas using relativistic electron bunches." Plasma Physics and Controlled Fusion 62, no. 2 (2020): 024010.

Huang, C. K., C. J. Zhang, K. A. Marsh, C. E. Clayton, and C. Joshi. "Initializing anisotropic electron velocity distribution functions in optical-field ionized plasmas." Plasma Physics and Controlled Fusion 62, no. 2 (2020): 024011.

Conferences

Tovey, D., Pigeon, J.J., Tochitsky, S.Y., Louwrens, G.J., Ben-Zvi, I., Martyshkin, D., Federov, V., Karki, K., Mirov, S. and Joshi,C, "10 um tasing in multi-atmosphere CO2 optically pumped by a tunable 4.3 um laser", Conference on Lasers and Electro-Optics, 1-2 (2020)
D. Tovey, J. J. Pigeon, S. Ya Tochitsky, G. J. Louwrens, I. Ben-Zvi, D. Martyshkin, V. Fedorov, K. Karki, S. Mirov, and C. Joshi. “Observation of High Gain in a CO2 Amplifier Pumped by a 4.3 µm Laser”. Conference on Lasers and Electro-optics, CLEO Conference Proceedings, (2020). SM3E.3.
J. Pigeon, D. Tovey, S. Ya Tochitsky, G. J. Louwrens, I. Ben-Zvi, D. Martyshkin, V. Fedorov, K. Karki, S. Mirov, and C. Joshi. “The fast resonant rovibrational nonlinearity of CO and CO2 in the mid-IR”. Conference on Lasers and Electro-optics, CLEO conference proceedings, Washington, DC (2020) FTh3A.5.

2019

Journals

D. Tovey, S. Ya Tochitsky, J. J. Pigeon, M. N. Polyanskiy, I. Ben-Zvi, and C. Joshi .“Multi-atmosphere picosecond CO 2 amplifier optically pumped at 4.3 µm.” Applied Optics, 58, 5756-5763 (July 2019).
J. J. Pigeon, D. Tovey, S. Ya Tochitsky, G. J. Louwrens, I. Ben-Zvi, D. Martyshkin, V. Fedorov, K. Karki, S. Mirov, and C. Joshi. “Resonant nonlinear refraction of 4.3-µm light in CO 2 gas.” Physical Review A (R), 100, 011803 (July 2019).

Conferences

S. Tochitsky, E. Welch, M. Polyanskiy, I. Pogorelsky, P. Panagiotopoulos, M. Kolesik, E. Wright, S. Koch, J. Moloney, and C. Joshi, “Long-wave Infrared Megafilament in air,” OSA Nonlinear Optics Topical Meeting, Hawaii, USA (July 2019).
S. Tochitsky, E. Welch, M. Polyanskiy, I. Pogorelsky, P. Panagiotopoulos, M. Kolesik,E. Wright, S. Koch, J. Moloney, and C. Joshi, “Long-wave Infrared Megafilament in the Atmosphere”, 20th Annual Directed energy Science &Technology Symposium, Destin, FL (March 2019).
D. A. Matteo, J.J. Pigeon, S. Ya. Tochitsky, U. Huttner, M. Kira, S.W. Koch, J.M. Moloney and C. Joshi, “Laser-beatwave induced enchancementof the Kerr nonlinearity in bulk GaAs at 10 ?m,” in Conference on Lasers and Electro-Optics, OSA Technical
Digest, Optical Society of America, (May 2019).
J. J. Pigeon, D. Tovey, S. Ya Tochitsky, G. J. Louwrens, I. Ben-Zvi, D. Martyshkin, V. Fedorov, K. Karki, S. Mirov, and C. Joshi. “Measurements of resonant Kerr self-focusing and self-defocusing of tunable, 4.3 µm radiation in CO 2 gas.” in Conference on Lasers and Electro-Optics, OSA Technical Digest, Optical Society of America (May 2019).
D. Tovey, J. J. Pigeon, S. Ya Tochitsky, G. J. Louwrens, I. Ben-Zvi, D. Martyshkin, V. Fedorov, K. Karki, S. Mirov, and C. Joshi. “CO 2 Laser Optically Pumped by a Tunable 4.3 µm Source.” in Conference on Lasers and Electro-Optics, OSA Technical Digest, Optical Society of America (May 2019).
E.C. Welch, “Interferometric measurements of low-density laser-produced plasma in air,” 20 th Annual Directed energy Science & Technology Symposium, Destin, FL (March 2019).

2018

Journals

S. Tochitsky, E. Welch, M. Polyankskiy, I. Pogorelsky, P. Panagiotopoulos, M. Kolesik, E.M. Wright, S.W. Koch, J.V. Moloney, J. Pigeon, and C. Joshi, “Megafilament in air formed by self-guided terawatt long-wavelength infrared laser”, Nature Photonics, 13, 41-46 (December 2018).

N. Vafaei-Najafabadi, L.D. Amorim, E. Adli, W. An, C.I. Clarke, C.E. Clayton, S. Corde, S. Gessner, S.Z. Green, M.J. Hogan, C. Joshi, O. Kononenko, C.A. Lindstrom, M. Litos, W. Lu, K.A. Marsh, W.B. Mori, P. San Miguel Claveria, B. O’Shea, G. Raj, D. Storey, G. White, X.L. Xu, and V. Yakimenko, “Producing Multi-Colored Bunches Through Beam-Induced Ionization Injection in PWFA”, Philosophical Transactions of the Royal Society A (2018).

P. San Miguel Claverial, E. Adli, W. An, C.E. Clayton, S. Corde, S. Gessner, M.J. Hogan, C. Joshi, O. Kononenko, M. Litos, W. Lu, K.A. Marsh, W.B. Mori, B.O’Shea, G. Rah, D. Storey, N. Vafaei-Najafabadi, G. White, X.L. Xu, and V. Yakimenko, “Betatron radiation and emittance growth in Plasma Wakefield Accelerators”, Philosophical Transactions of the Royal Society A (2018).

F. Albert, N. Lemos, J.L. Shaw, P.M. King, B. Pollock, C. Goyon, W. Schumaker, A.M. Saunders, K.A. Marsh, A. Pak, J.E. Ralph, J.L.L Martins, L.D. Amorim, R. Falcone, S.H. Glenzer, J. Moody, and C. Joshi, “Betatron x-ray radiation in the self-modulated laser wakefield acceleration regime: prospects for a novel probe at large scale laser facilities”, accepted in Nuclear Fusion.

A. Pak, S. Kerr, N. Lemos, A. Link, P. Patel, F. Albert, L. DIvol, B.B. Pollock, D. Haberberger, D. Froula, M. Gauthier, S.H. Glenzer, A. Longman, L. Manzoor, R. Fedosejevs, S. Tochitsky, C. Joshi, and F. Fiuza, “Collisionless shock acceleration of narrow energy spread ion beams from mixed species plasmas using 1 um lasers”, Physics Review Accelerators and Beams 21, 103401 (October 2018).

Y. Wan, C.H. Pai, C.J. Zhang, F. Li, Y.P. Wu, J.F. Hua, W. Lu, C. Joshi, W.B. Mori, and V. Malka, “Physical mechanism of the electron-ion coupled transverse instability in laser pressure ion acceleration for different regimes”, Physical Review E, 98. 013202 (July 2018).

F. Albert, N. Lemos, J.L. Shaw, P.M. King, B.B. Pollock, C. Goyon, W. Schumaker, A.M. Saunders, K.A. Marsh, A. Pak, J.E. Ralph, J.L. Martins, L.D. Amorim, R.W. Falcone, S.H. Glenzer, J.D. Moody, and C. Joshi, “Betatron x-ray radiation from laser-plasma accelerators driven by femtosecond and picosecond laser systems,” Physics of Plasmas 25, 056706 (May 2018).

A. Davidson, A. Tableman, P. Yu, W. An, F. S. Tsung, W. Lu, R. A. Fonseca, and W.B. Mori, "Optimizing Laser Wakefield Acceleration in the Nonlinear Self-Guided Regime for Fixed Laser Energy”, submitted to Physical Review Letters.

Z. Nie, C.H. Pai, J.F. Hua, C.J. Zhang, Y.P. Wu, Y. Wan, F. Li, J. Zhang, Z. Cheng, Q.Q. Su, S. Liu, Y. Ma, X.N. Ning, Y.X. He, W. Lu, H-H. Chu, J. Wang, W.B. Mori, and C. Joshi, "Relativistic single-cycle tunable infrared pulses generated from a tailored plasma density structure," Nature Physics (June 2018).

J.J. Pigeon, S. Ya Tochitsky, E.C. Welch, and C. Joshi, "Experimental study of third order nonlinearity in atomic and molecular gases using 10 um laser pulses," Physical Review A 97, 003800-1 (April 2018).

E.C. Welch, S. Ya Tochitsky, J.J. Pigeon, and C. Joshi, "Long-wave infrared picosecond parametric amplifier," Optical Express, 26, 5154-5163 (March 2018).

C.A. Lindstrom, E. Adli, J.M. Allen, W. An, C. Beekman, C.I. Clarke, C.E. Clayton, S. Corde, A. Doche, J. Frederico, S.J. Gessner, S.Z. Green, M.J. Hogan, C. Joshi, M. Litos, W. Lu, K.A. Marsh, W.B. Mori, B.D. O'Shea, N. Vafaei-Najafabadi, and V. Yakimenko, "Measurements of Transverse Wakefields Induced by a Misaligned Positron Bunch in a Hollow Channel Plasma Accelerator", Physical Review Letters 120, 124802 (March 2018).

C.J. Zhang, Y. Wan, B. Guo, J.F. Hua, C.H. Pai, F. Li, J. Zhang, Y. Ma, Y.P. Wu, X.L. Xu, W.B. Mori, J. Wang, W. Lu, and C. Joshi, "Probing plasma wakefields using electron bunches generated from a laser wakefield accelerator", Plasma Physics and Controlled Fusion 60, 044013 (March 2018).

N. Lemos, F. Albert, J.L. Shaw, D. Papp, R. Polanek, P. King, A.L. Milder, K.A. Marsh, A. Pak, B.B. Pollock, B.M. Hegelich, J.D. Moody, J. Park, R. Tommasini, G.J. Williams, Hui Chen, and C. Joshi, "Bremsstrahlung hard x-ray source driven by an electron beam from a self-modulated laser wakefield accelerator", Plasma Physics and Controlled Fusion 60, 054008 (March 2018).

Y. Wan, J. F. Hua, C.H. Pai, F. Li, Y.P. Wu, W. Lu, C.J. Zhang, X.L. Xu, C. Joshi, and W.B. Mori, "Phase locked multiple rings in the radiation pressure ion acceleration process", Plasma Physics and Controlled Fusion 60, 044016 (March 2018).

J.L. Shaw, N. Lemos, K.A. Marsh, D.H. Froula, C. Joshi, "Experimental signatures of direct-laser-acceleration-assisted wakefield accelerator," Plasma Physics and Controlled Fusion 60, 044012 (February 2018).

C. Joshi, E. Adli, W. An, C.E. Clayton, S. Corde, S. Gessner, M.J. Hogan, M. Litos, W. Lu, K.A. Marsh, W.B. Mori, N. Vafaei-Najafabadi, B. O'Shea, X.Xu, G. White, and V. Yakimenko, "Plasma wakefield acceleration experiments at FACET II", Plasma Physics and Controlled Fusion 60, 034001 (January 2018).

C.J. Zhang, C. Joshi, X.L. Xu, W.B. Mori, F. Li, Y. Wan, J.F. Hua, C.H. Pai, J. Wang, and W. Lu, "Evolution of plasma wakes in a density up-and down-ramps", Plasma Physics and Controlled Fusion 60, 024003 (January 2018).

Conferences

J.J. Pigeon, S.Y. Tochitsky, E.C. Welch, I. Ben-Zvi, and C. Joshi, “Four-wave mixing of 10 um radiation in quadratic nonlinear crystals”, Frontiers in Optics. Washington, DC. September 2018.

Z. Nie, C.H. Pai, J.F. Hua, C.J. Zhang, W. Lu, H.H. Chu, J. Wang, W.B. Mori, and C. Joshi, “Relativistic Single-Cycle Tunable Infrared Pulses Generated from a Tailored Plasma Density Structure”, Frontiers in Optics. Washington, DC. September 2018.

C.K. Huang, C. J. Zhang, K.A. Marsh, C.E. Clayton, W.B. Mori, and C. Joshi, “Dynamics of Optical-Field Ionized Helium Plasmas”, 18 th Advanced Accelerator Concepts Workshop, Breckenridge, CO, August 2018.

L. Hildebrand, W. An, X.L. Xu, F. Li, Y. Zhao, M.J. Hogan, V. Yakimenko, S.S. Nagaitsev, E. Adli, C. Joshi, and W. Mori, “Mitigation Techniques for Witness Beam Hosing in Plasma-Based Acceleration”, 18th Advanced Accelerator Concepts Workshop, Breckenridge, CO, August 2018.

H. Fujii, W. An, K.A. Marsh, and C. Joshi, “Generation and acceleration of a trailing positron bunch using the drive-trailing electron bunch configuration.” 18 th Advanced Accelerator Concepts Workshop, Breckenridge, CO, August 2018.

E. Welch, D. Matteo, S. Tochitsky, and C. Joshi, “Generating Quasi-Single Multi-Terawatt Picosecond Pulses in the Neptune CO2 Laser System,” 18th AdvancedAccelerator Concepts Workshop, Breckenridge, CO, August 2018.

E.C. Welch, "Development of a single picosecond pulse CO2 laser system for long-wave infreared atmospheric studies," 20th Annual Directed energy Science & Technology Symposium, Oxnard, CA March 2018.

J.J Pigeon, S. Ya Tochitsky, E.C. Welch, and C. Joshi, " Comparative study of the optical nonlinearity of atomic and molecular gases driven by an intense 10 um CO2 laser, " Bulletin of the American Physical Society, APS March Meeting, Los Angeles, CA March 2018.

S. Tochitsky, E.C. Welch, M. Polyanskiy, I. Pogorelsky, P. Panagiotopoulos, J. Moloney, M. Kolesik, and C. Joshi, "Filamentation of 3 ps TW CO2 laser pulses in the atmosphere", 20th Annual Directed energy Science & Technology Symposium, Oxnard, CA March 2018.

2017

Journals

C. Joshi, "Laser-driven plasma accelerators operating in the self-guided, blowout regime",IEEE Transactions in Plasma Physics 45, 12 (December 2017).

X.L. Xu, F. Li, W. An, T.N. Dalichaouch, P. Yu, W. Lu, C. Joshi, and W.B. Mori, "High quality electron bunch generation using a longitudinal density-tailored plasma-based accelerator in the three-dimensional blowout regime",Physical Review Accelerators and Beams 20, 111303 (November 2017).

A. Doche, C. Beekman, S. Corde, J.M. Allen, C.I. Clarke, J. Frederico, S.J. Gessner, S.Z. Green, M.J. Hogan, M.D Litos, B. O'Shea, V. Yakimenko, W. An, C.E. Clayton, C. Joshi, K.A. Marsh, W.B. Mori, N. Vafaei-Najafabadi, E. Adli, C.A. Lindstrom, W. Lu, "Acceleration of a trailing positron bunch in a plasma wakefield accelerator", Nature: Scientific Reports 7, 14180 (October 2017).

C.J. Zhang, J.F. Hua, Y. Wan, C.H. Pai, B. Guo, J. Zhang, Y. Ma, F. Li, Y.P. Wu, H.H. Chu, Y.Q. Gu, X.L. Xu, W.B. Mori, C. Joshi, J. Wang, and W. Lu, "Femtosecond Probing of Plasma Wakefields and Observation of the Plasma Wake Reversal Using a Relativistic Electron Bunch", Physical Review Letters 119, 064801 (August 2017).

W. An, W. Lu, C. Huang, X. Xu, M.J. Hogan, C. Joshi, and W.B. Mori, “Ion motion induced emittance growth of matched electron beams in plasma wakefields,”Physical Review Letters 118, 244801 (June 2017).

F. Albert, N. Lemos, J. L. Shaw, B. B. Pollock, C. Goyon, W. Schumaker, A. M. Saunders, K. A. Marsh, A. Pak, J. E. Ralph, J. L. Martins, L. D. Amorim, R. W. Falcone, S. H. Glenzer, J. D. Moody, and C. Joshi," Observation of Betatron X-Ray Radiation in a Self-Modulated Laser Wakefield Accelerator Driven with Picosecond Laser Pulses", Physical Review Letters 118, 134801 (March 2017).

J.L. Shaw, N. Lemos, L.D. Amorim, N. Vafaei-Najafabadi, K.A. Marsh, F.S. Tsung, W.B. Mori, and C. Joshi, “ Role of direct laser accelerations of electrons in a laser wakefield accelerator with ionization injection,”Physical Review Letters 118, 064801 (February 2017).

Conferences

E.C. Welch, S. Ya Tochitsky, and C.Joshi, "Efficient production of picsecond 9-11 um pulses by parametric three wave mixing in GaSe," Frontiers in Optic. Washington, DC. September 2017

J.J. Pigeon, S. Ya Tochitsky, E.C. Welch, and C. Joshi, "Measurements of the nonlinear refractive index of noble gases and major air constituents at 10 um using four-wave mixing, " Frontiers in Optics. Washington, D.C. September

S. Tochitsky, "Nonlinear guiding of picosecond CO2 laser pulses in atmosphere," SPIE Defense+Commercial Sensing, Conference 10193 Ultrafast Bandgap Photonics II, Anaheim, C, April 11- 13, 2017.

2016

Journals

Y. Wan, C.H. Pai, C.J. Zhang, F. Li, Y.P. Wu, J.F. Hua, W. Lu, Y.Q. Gu, L.O. Silva, C. Joshi, and W.B. Mori, “Physical mechanism of the transverse instability in radiation pressure ion acceleration,” Physical Review Letters 117, 234801 (November 2016).
E. Adli, C.A. Lindstrom, J. Allen, C.I. Clarke, J. Frederico, S.J. Gessner, S.Z. Green, M.J. Hogan, M.D. Litos, B. O’Shea, V. Yakimenko, W. An, C.E. Clayton, K.A. Marsh, W.B. Mori, C. Joshi, N. Vafaei-Najafabadi, S. Corde, W. Lu, “Long-range attraction of an ultrarelativistic electron beam by a column of neutral plasma,” New Journal of Physics 18 (October 2016).
N. Vafaei-Najafabadi, K.A. Marsh, C.E. Clayton, W. An, W.B. Mori, C. Joshi, W. Lu,E. Adli, S. Corde, C.I. Clarke, M. Litos, S. Green, S. Gessner, J. Frederico, A.S. Fisher, Z. Wu, D. Walz, and M.J. Hogan, “Limitation on the accelerating gradient of a wakefield excited by an ultra-relativistic electron beam in rubidium plasma,” Physical Review Special Topics: Acceleration and Beams19, 101303 (October 2016).
J. Pigeon, S.Y. Tochitsky, E.C. Welch, and C. Joshi, “Measurements of the nonlinear refractive index of air, N2, and O2 at 10um using four-wave mixing”, Optics Express 41, 17 (September 2016).
X.L. Xu, J.F. Hua, Y.P. Wu, C.J. Zhang, F. Li, Y. Wan, C.H. Pai, W. Lu, W. An, P. Yu, M.J. Hogan, C. Joshi, and W.B. Mori, “Physics of phase space matching for staging plasma and traditional accelerator components using longitudinally tailored plasma profiles,” Physical Review Letters 116, 124801 (March 2016).
C.J. Zhang, J.F. Hua, Y. Wan, B. Guo, C.H. Pai, Y.P. Wu, F. Li, H.H. Chu, Y.Q. Gu, W.B. Mori, C. Joshi, J. Wang, and W. Lu, “Temporal characterization of ultrashort linearly chirped electron bunches generated from a laser wakefield accelerator,”Physical Review Special Topics: Accelerators and Beams 19, 062802 (June 2016).
S. Corde, E. Adli, J.M. Allen, W. An, C.I. Clarke, B. Clausse, C.E. Clayton, J.P. Delahaye, J. Frederico, S. Gessner, S.Z. Green, M.J. Hogan, C. Joshi, M. Litos, W. Lu, K.A. Marsh, W.B. Mori, N. Vafaei-Najafabadi, D. Walz, and V. Yakimenko, “High-field plasma acceleration in a high-ionization-potential gas,” Nature Communications 7,11898 (June 2016).
X.L. Xu, C.J. Zhang, F. Li, Y. Wan, Y.P. Wu, J.F. Hua, C.H. Pai, W. Lu, W. An, P. Yu, C. Joshi, and W.B. Mori, “Nano-scale electron bunching in laser-triggered ionization injection in plasma accelerators,” Physical Review Letters 117, 034801 (July 2016).
C.E. Clayton, E. Adli, J. Allen, W. An, C.I. Clarke, S. Corde, J. Frederico, S. Gessner, S.Z. Green, M.J. Hogan, C. Joshi, M. Litos, W. Lu, K.A. Marsh, W.B. Mori, N. Vafaei-Najafabadi, X. Xu, and V. Yakimenko, “Self-mapping the longitudinal field structure of a nonlinear plasma accelerator activity,” accepted in Nature Communications 7, 12483 (August 2016).
C. Gong, S.Y. Tochitsky, F. Fiuza, J.J. Pigeon, and C. Joshi, “Plasma dynamics near critical density inferred from the direct measurements of laser hole boring,” Physical Review E: Rapid Communications 93, 061202 (June 2016).
C.J. Zhang, J.F. Hua, X.L. Xu, F. Li, C.H. Pai, Y. Wan, Y.P. Wu, Y.Q. Gu, W.B. Mori, C. Joshi, and W. Lu, “Capturing relativistic wakefield structures in plasmas using ultrashort high-energy electrons as a probe,” Nature: Scientific Reports 6, 2945 (July 2016).

S. Gessner, E. Adli, J.M. Allen, W. An, C. I. Clarke, C. E. Clayton, S. Corde, J.P. Delahaye, J. Frederico, S. Z. Green, C. Hast, M. J. Hogan, C. Joshi, C. A. Lindstrom, N. Lipkowitz, M. Litos, W. Lu, K. A. Marsh, W. B. Mori, B. O'Shea, N. Vafaei-Najafabadi, D. Walz, V. Yakimenko, and G. Yocky, “Demonstration of a positron beam-driven hollow channel plasma wakefield accelerator”, Nature Communications 7, 11785, (June 2016).
E. Adli, C.A. Lindstrom, J. Allen, C.I. Clarke, J. Frederico, S.J. Gessner, S.Z. Green, M.J. Hogan, M.D. Litos, G.R. White, V. Yakimenko, W. An, C.E. Clayton, K.A. Marsh, W.B. Mori, C. Joshi, N. Vafaei-Najafabadi, S. Corde, W. Lu,” Transverse Oscillations in Plasma Wakefield Experiments at FACET”, Nuclear Instruments and Methods in Physics Research A (NIMA) 829, 94- 98 (September 2016).

E. Adli, V.K. Berglyd Olsen, C.A. Lindstrom, P. Muggli, O. Reimann, J.M. Vieira, L.D. Amorim, C.I. Clarke, S.J. Gessner, S.Z. Green, M.J. Hogan, M.D. Litos, B.D. O’Shea, V. Yakimenko, C. Clayton, K.A. Marsh, W.B. Mori, C. Joshi, N. Vafaei-Najafabadi, and O. Williams, “Progress of plasma wakefield self-modulation experiments at FACET”, Nuclear Instruments and Methods in Physics Research A (NIMA) 829, 334-338 (September 2016).
C.A. Linstrom, E. Adli, J.M. Allen, J.P. Delahaye, M.J. Hogan, C. Joshi, P. Muggli, T.O. Raubenheimer, V. Yakimenko, “Staging Optics Considerations for a plasma wakefield acceleration linear collider”, Nuclear Instruments and Methods in Physics Research A (NIMA) 829, 224-228 (September 2016).
X.L. Xu, Y.P. Wu, C.J. Zhang, F. Li, Y. Wan, J.F. Hua, C.H. Pai, W. Lu, W. An, P. Yu, W.B. Mori, M.J. Hogan, and C. Joshi, “Exact phase space matching for staging plasma and traditional accelerator components using longitudinally tailored plasma profiles”, Physical Review Letters 116, 124801 (March 2016).
N. Lemos, J. L. Martins, F. S. Tsung, J. L. Shaw, K. A. Marsh, F. Albert, B. B. Pollock, and C. Joshi, “Self-modulated laser wakefield accelerators as x-ray sources,” Plasma Physics and Controlled Fusion 58, 034006, (March 2016).
J. L. Shaw, N. Lemos, K. A. Marsh, F. S. Tsung, W. B. Mori, and C. Joshi, “Estimation of direct laser acceleration in laser wakefield accelerators using particle-in-cell simulations,” Plasma Physics and Controlled Fusion 58, 034006, (March 2016).
N. Vafaei-Najafabadi, W. An, C. E. Clayton, C. Joshi, K. A. Marsh, W. B. Mori, E. C. Welch, W. Lu, E. Adli, J. Allen, C. I. Clarke, S. Corde, J. Frederico, S. J. Gessner, S. Z. Green, M. J. Hogan, M. D. Litos, and V. Yakimenko, “Evidence for high-energy and low-emittance electron beams using ionization injection of charge in a plasma wakefield accelerator,” Plasma Physics and Controlled Fusion 58, 034009, (March 2016).
Y. Wan, C. J. Zhang, F. Li, Y. P. Wu, J. F. Hua, C.-H. Pai, W. Lu, C. Joshi, W. B. Mori, and Y. Q. Gu, “Colliding ionization injection in a beam driven plasma accelerator,” Plasma Physics and Controlled Fusion 58, 034015, (March 2016).
F. Li, C. J. Zhang, Y. Wan, Y. P. Wu, J. F. Hua, C. H. Pai, W. Lu, W. B. Mori, C. Joshi, “Low-energy-spread laser wakefield acceleration using ionization injection with a tightly focused laser in a mismatched plasma channel,” Plasma Physics and Controlled Fusion 58, 034004, (March 2016).
M. Litos, E. Adli, J.M. Allen, W. An, C. I. Clarke, S. Corde, C. E. Clayton, J. Frederico, S. J. Gessner, S. Z. Green, M. J. Hogan, C. Joshi, W. Lu, K. A. Marsh, W. B. Mori, M. Schmeltz, N. Vafaei-Najafabadi, and V. Yakimenko, “9 GeV energy gain in a beam-driven plasma wakefield accelerator,” Plasma Physics and Controlled Fusion 58, 034017, (March 2016).

Conferences

C.K. Huang, N. Lemos, X.L. Xu, and C. Joshi, "Orbital Angular Momentum in the Light Emitted from Laser-Plasma Accelerators", 17th Advanced Accelerator Concepts Workshop, National Harbor, MD, July 31-August 5, 2016.

S. Tochitsky, Y. Chen, G. Burnhum, and C. Joshi, "Novel Methods for Production of Energetic Picosecond 10um Pulses in OP CPA",17th Advanced Accelerator Concepts Workshop, National Harbor, MD, July 31-August 5, 2016.

E. Welch, S.Tochitsky, and C. Joshi, "Generation of Energetic, Picosecond Seed Pulses for CO2 Laser Using Raman Shifter",17th Advanced Accelerator Concepts Workshop, National Harbor, MD, July 31-August 5, 2016.

N. Vafaei-Najafabadi, W. An, C.E. Clayton, C. Joshi, K.A. Marsh, W.B. Mori, E.C. Welch, W. Lu, J. Allen, C.I. Clarke, J. Frederico, S.J. Gessner, S.Z. Green, M.J. Hogan, M.D. Litos, B. O'Shea, V. Yakimenko, E. Adli, C. Lidstrom, and S. Corde, "Acceleration of High-Charge Low-Emittance Electron Beam in a Plasma Wakefield Accelerator via Ionization Injection",17th Advanced Accelerator Concepts Workshop, National Harbor, MD, July 31-August 5, 2016.

N. Lemos, F. Albert, K.A. Marsh, J.L. Shaw, P. King, S. Patankar, J. Ralph, B.B. Pollock, J.L. Martins, L.D. Amorim, F.S. Tsung, C. Goyon, A. Pak, J.D. Moody, W. Schumaker, F. Fiuza, S.H. Glenzer, B.M. Hegelichand, A. Saunders, R.W. Falcone, and C. Joshi, "X-ray Beam Source from a Self-Modulated Laser Wakefield Accelerator",17th Advanced Accelerator Concepts Workshop, National Harbor, MD, July 31-August 5, 2016.

J. Pigeon, S. Tochitsky, and C. Joshi, "Nonlinear Optical Compression of High-Power, 10um CO2 Laser Pulses in Gases and Semiconductors",17th Advanced Accelerator Concepts Workshop, National Harbor, MD, July 31-August 5, 2016.

C.E. Clayton, E. Adli, J. Allen, W. An, C.I. Clarke, S. Corde, J. Frederico, S. Gessner, S.Z. Green, M.J Hogan, C. Joshi, M. Litos, W. Lu, K.A. Marsh, W.B. Mori, N. Vafaei-Najafabadi, X.Xu, and V. Yakimenko, "Self-Mapping the Longitudinal Field Structure of a Nonlinear Plasma Accelerator Cavity",17th Advanced Accelerator Concepts Workshop, National Harbor, MD, July 31-August 5, 2016.

A. Pak, D. Haberberger, D. Froula, A.J. Link, F. Fiuza, S. Tochitsky, and C. Joshi, "Particle acceleration from laser-driven electrostatic shock waves",17th Advanced Accelerator Concepts Workshop, National Harbor, MD, July 31-August 5, 2016.

J. Shaw, N. Lemos, L.D. Amorim, N. Vafaei-Najafabadi, K.A. Marsh, F.S. Tsung, W.B. Mori, and C. Joshi, "Role of direct laser acceleration of electrons in a laser wakefield accelerator with ionization injection, "17th Advanced Accelerator Concepts Workshops, National Harbor, MD, July 31-August 5, 2016.

2015

Journals

J. J. Pigeon, S. Ya. Tochitsky and C. Joshi, “High-power, mid-infrared, picosecond pulses generated by compression of a CO2 laser beat-wave in GaAs,” Optics Letters. 40, 5730-5733, (December 2015).
S. Corde, E. Adli, J.M. Allen, W. An, C.I. Clarke, C. E. Clayton, J.P. Delahaye, J. Frederico, S. Gessner, S.A. Green, M.J. Hogan, C. Joshi, N. Lipkowitz, M. Litos, W. Lu, K.A. Marsh, W. B. Mori, M. Schmeltz, N. Vafaei-Najafabadi, D. Walz, V. Yakimenko and G. Yocky, “Multi-gigaelectronvolt acceleration of positrons in a self-loaded plasma wakefield,” Nature 524, 442 (August 27, 2015).
B.B. Pollock, F. S. Tsung, F. Albert, J.L. Shaw, C. E. Clayton, A. Davidson, N. Lemos, K.A. Marsh, A. Pak, J.E. Ralph, W.B. Mori, and C. Joshi, “Formation of ultrarelativistic electron rings from a laser wakefield accelerator,” Physical Review Letters 115, 055004, (July 2015).
W. Luo, F. Shabbir, C. Gong, C. Gulec, J. Pigeon, J. Shaw, A. Greenbaum, S. Tochitsky, C. Joshi and A. Ozcan, “High throughput on-chip analysis of high-energy charged particle tracks using lensfree imaging,”Applied Physics Letters 106, 151107, (April 2015).

Conferences

J.J. Pigeon, S. Ya. Tochitsky, and C. Joshi, “High-power, picosecond, 10 um pulses via compression of a laser beat-wave in GaAs,” Frontiers in Optics Conference Proceedings, San Jose, CA, October 18-22, 2015.

2014

Journals

M. Litos, E. Adli, W. An, C.I. Clarke, C.E. Clayton, S. Corde, J.P. Delahaye, R.J. England, A.S. Fisher, J. Frederico, S. Gessner, S.Z. Green, M.J. Hogan, C. Joshi, W. Lu, K.A. Marsh, W.B. Mori, P. Muggli, M. Vafaei-Najafabadi, D. Walz, G. White, Z. Wu, V. Yakimenko, and G. Yocky, “High-efficiency acceleration of an electron beam in a plasma wakefield accelerator,” Nature 515, 92-95 (November 2014).
J.L. Shaw, F. S. Tsung, N. Vafaei-Najafabadi, K. A. Marsh, N. Lemos, W.B. Mori, and C. Joshi, “Role of direct laser acceleration in energy gained by electrons in a laser wakefield accelerator with ionization injection,” Plasma Physics and Controlled Fusion 56, 084006, (July 2014).
S.Z. Green, E. Adli, C.I. Clarke, S. Corde, S. A. Edstrom, A.S. Fisher, J. Frederico, J.C. Frisch, S. Gessner, S. Gilevich, P. Hering, M.J. Hogan, R.K. Jobe, M. Litos, J.E. May, D. R. Walz, V. Yakimenko, C. E. Clayton, C. Joshi, K.A. Marsh, N. Vafaei-Najafabadi, and P. Muggli, “Laser ionized preformed plasma at FACET,” Plasma Physics and Controlled Fusion 56, 084011, (July 2014).
F. Albert, A.G.R. Thomas, S.P.D. Mangles, S. Banerjee, S. Corde, A. Flacco, M. Litos, D. Neely, J. Vieira, Z. Najmudin, R. Bingham, C. Joshi and T. Katsouleas, “Laser wakefield accelerator based light sources: potential applications and requirements,” Plasma Physics and Controlled Fusion 56, 084015, (July 2014).
F. Albert, B.B. Pollock, J. L. Shaw, K.A. Marsh, J.E. Ralph, Y-H. Chen, D. Alessi, A. Pak, C.E. Clayton, S.H. Glenzer, and C. Joshi, “Measuring the angular dependence of betatron x-ray spectra in a laser-wakefield accelerator,” Plasma Physics and Controlled Fusion 56, 084016, (July 2014).
X.L. Xu, Y.P. Wu, C. J. Zhang, F. Li, Y. Wan, J.F. Hua, C.-H. Pai, W. Lu, P. Yu, C. Joshi, and W.B. Mori, “Low emittance electron beam generation from a laser wakefield accelerator using two laser pulses with different wavelengths,” Physical Review Special Topics AB 17, 061301 (June 2014).
J. J. Pigeon, S. Tochitsky, C. Gong, and C. Joshi, “Super-Continuum Generation from 2-20 um in GaAs Pumped by Picosecond CO2 Laser Pulses,” Optics Letters 39, 3246 (June 2014).
X.L. Xu, J.F. Hua, F. Li, C.J. Zhang, L.X. Yan, Y.C. Du, W.H. Huang, H.B. Chen, C. X. Tang, W. Lu, P. Yu., W. An, W. B. Mori, and C. Joshi, “Phase space dynamics of ionization injection in plasma based accelerators,” Physical Review Letters 112, 035003 (January 2014).

N. Vafaei-Najafabadi, K.A. Marsh, C. E. Clayton, W. An, W. B. Mori, C. Joshi, W. Lu, E. Adli, S. Corde, M. Litos, S. Li, S. Gessner, J. Frederico, A. S. Fisher, Z. Wu, D. Walz, R. England, et al., “Beam Loading by Distributed Injection of Electrons in a Plasma Wakefield Accelerator,” Physical Review Letters 112, 025001 (January 2014).

Conferences

N. Vafaei-Najafabadi, C. E. Clayton, K.A. Marsh, W. An, W. Lu, W. B. Mori, C. Joshi, E. Adli, J. Allen, C.I. Clarke, S. Corde, J. Frederico, S. Gessner, S. Z. Green, M. Litos, D. Walz, M. J. Hogan, V. Yakimenko, P. Muggli, “Ionization Injection and Acceleration of Electrons in a Plasma Wakefield Accelerator at FACET,” 16th Advanced Accelerator Concepts Workshop Proceedings, San Jose, CA, July 13-18, 2014.

C. E. Clayton and C. Joshi, “The energy-dependent betatron phase advance in the blowout regime; Comparison of two methods for estimation,” 16th Advanced Accelerator Concepts Workshop Proceedings ,San Jose, CA, July 13-18, 2014.

S. Tochitsky, F. Fiuza and C. Joshi, “Prospects and directions of CO2 laser-driven acceleration,” 16th Advanced Accelerator Concepts Workshop Proceedings, San Jose, CA, July 13-18, 2014.
C. Gong, S. Tochitsky, J. Pigeon and C. Joshi, “Four-frame picosecond interferometry system for probing near-critical density CO2 laser-produced plasmas,” 16th Advanced Accelerator Concepts Workshop Proceedings, San Jose, CA, July 13-18, 2014.

J. Pigeon, S. Tochitsky and C. Joshi, “Generation of high power sub-picosecond 10 um pulses via self-phase modulaton followed by compression,” 16th Advanced Accelerator Concepts Workshop Proceedings, San Jose, CA, July 13-18, 2014.

N. Lemos, J. L. Shaw, K.A. Marsh and C. Joshi, “Sub-femtosecond electron bunches created by direct laser acceleration in a laser wakefield acceleration with ionzation injection,” 16th Advanced Accelerator Concepts Workshop Proceedings, San Jose, CA, July 13-18, 2014.

J.L. Shaw, N. Vafaei-Najafabadi, K.A. Marsh, N. Lemos, F.S. Tsung, W. B. Mori and C. Joshi, “Satisfying the direct laser acceleration resonance condition in a laser wakefield accelerator,” 16th Advanced Accelerator Concepts Workshop Proceedings ,San Jose, CA, July 13-18, 2014.

M. Voin, Z. Toroker, W. Kimura, P. Muggli, C. Joshi, and L. Schacter, "Two-Beam Accelerator with Active Medium as the Energy Source", 16th Advanced Accelerator Concepts Workshop Proceedings, San Jose, CA, July 13-18, 2014.

2013

Journals

F. Albert, B.B. Pollock, J.L. Shaw, K.A. Marsh, J. E. Ralph, Y.-H. Chen, D. Allessi, A. Pak, C. E. Clayton, S. H. Glenzer and C. Joshi, “Angular dependence of betatron x-ray spectra from a laser-wakefield accelerator,” Physical Review Letters 111,235004 (December 2013).
C. Joshi and A. Caldwell, “Plasma Accelerators,” Handbook for Elementary Particle Physics, Volume III, edited by S. Myers and H. Schopper, Heidelberg, Springer (2013), 12-1.

W. An, M. Zhou, N. Vafaei-Najafabadi, K.A. Marsh, C.E. Clayton, C. Joshi, W.B. Mori, W. Lu, E. Adli, S. Corde, M. Litos, S. Li, S. Gessner, J. Frederico, M.J. Hogan, D. Walz, J. England, J.P. Delahaye, and P. Muggli, “Strategies for mitigating the ionization-induced beam head erosion problem in an electron-beam-driven plasma wakefield accelerator,” Physical Review STAB 16, 101301 (October 2013).
F. Fiuza, A. Stockem, E. Boella, R. A. Fonseca, L. O. Silva, D. Haberberger, S. Tochitsky, W. B. Mori, and C. Joshi, “Ion Acceleration from Laser-Driven Electrostatic Shocks,” Physics of Plasmas 20, 056304 (April 2013).
F. Li , J. F. Hua, X. L. Xu, C. J. Zhang, L. X. Yan, Y. C. Du, W. H. Huang, H. B. Cheng, C. X. Tang, W. Lu, C. Joshi, W. B. Mori, Y. Q. Gu, “Generation of High Brightness Electron Beams via Ionization Induced Injection by Transverse Colliding Lasers in a Beam-Driven Plasma Wakefield Accelerator,” Physical Review Letters 111, 015003 (July 2013).

Conferences

F. Albert, B.B. Pollock, Y.-H. Chen, D. Alessi, J.E. Ralph, P.A. Michel, A. Pak, J. Shaw, K.A. Marsh, C. E. Clayton, C. Joshi, and S.H. Glenzer, “Betatron x-rays from a laser wakefield accelerator in the ionization induced trapping regime,” Proceedings of the North American Particle Accelerator Conference (NA-PAC),Pasadena, CA, Sept. 30-Oct. 4, 2013.

C. Gong, S. Tochitsky, J. Pigeon, and C. Joshi, “Laser-plasma interaction studies using above critical density gas jet plasmas and a multi-TW CO2 laser,” Proceedings of the North American Particle Accelerator Conference (NA-PAC),Pasadena, CA, Sept. 30-Oct. 4, 2013.

M.D. Litos, E. Adli, C.I. Clarke, S. Corde, J.P. Delahaye, R. J. England, A.S. Fisher, J. Frederico, S. Gessner, M.J. Hogan, S. Li, D. Walz, G. Whate, Z. Wu, V. Yakimenko, W. An, C.E.Clayton, C. Joshi, W. Lu, K.A. Marsh, W. B. Mori, N. Vafaei-Najafabadi, and P. Muggli,, “Latest plasma wakefield acceleration results from the FACET project,” Proceedings of the North American Particle Accelerator Conference (NA-PAC),Pasadena, CA, Sept. 30-Oct. 4, 2013.

P. Muggli, O. Reimann, N. Lopes, L. Sliva, J. Vieira, E. Adli, S. Gessner, M. Hogan, S. Li, M. Litos, C. Joshi, K. Marsh, W. Mori, N. Vafaei-Najafabadi, and Y. Fang, “Electron and positron bunch self-modulation experiments at SLAC-FACET,” Proceedings of the North American Particle Accelerator Conference (NA-PAC),Pasadena, CA, Sept. 30-Oct. 4, 2013.

J. Pigeon, S. Tochitsky, and C. Joshi, “Development of a high-repetition rate TW CO2 Laser Driver for a Compact, variable species ion source,” Proceedings of the North American Particle Accelerator Conference (NA-PAC),Pasadena, CA, Sept. 30-Oct. 4, 2013.

J. Shaw, N. Vafaei-Najafabadi, K.A. Marsh, C. Joshi, “Technique for deterring the maximum energy of a disperse electron beam from laser wakefield accelerators,” Proceedings of the North American Particle Accelerator Conference (NA-PAC),Pasadena, CA, Sept. 30-Oct. 4, 2013.

A. W. Davidson, W. Lu, M. Zheng, C. Joshi, L.O. Silva, J. Martins, R. A. Fonseca, W. B. Mori, “Self and ionization-injection in LFWA for near-term lasers,” Proceedings of the North American Particle Accelerator Conference (NA-PAC),Pasadena, CA, Sept. 30-Oct. 4, 2013.

C. Clayton, W.An, C. Joshi, K.Marsh, W. Mori, N. Vafaei-Najafabadi, P. Muggli, E. Adli, C. I. Clarke, S. Corde, J-P. Delahaye, R. J. England, A. S. Fisher, J. Frederico, S. J. Gessner, M. Hogan, S. Li, M.D. Litos, D. Walz, Z. Wu, and W. Lu, “A betatron-analysis technique for identifying narrowband trapped charge within a broadband energy tail in PWFA experiments at FACET,” Proceedings of the North American Particle Accelerator Conference (NA-PAC),Pasadena, CA, Sept. 30-Oct. 4, 2013.

N. Vafaei-Najafabadi, C. Clayton, W.An, C. Joshi, K.Marsh, W. Mori, W. Lu, E. Adli, C. I. Clarke, S. Corde, J-P. Delahaye, R. J. England, A. S. Fisher, J. Frederico, S. J. Gessner, M. Hogan, S. Li, M.D. Litos, D. Walz, Z. Wu, and P. Muggli, “Suppression of the transformer ratio due to distributed injection of electrons in a plasma wakefield accelerator,” Proceedings of the North American Particle Accelerator Conference (NA-PAC),Pasadena, CA, Sept. 30-Oct. 4, 2013.

K. A. Marsh, W.An , C. Clayton, , C. Joshi, W. Mori, N. Vafaei-Najafabadi, P. Muggli, C. I. Clarke, S. Corde, J-P. Delahaye, R. J. England, A. S. Fisher, J. Frederico, S. J. Gessner, M. Hogan, S. Li, M.D. Litos, D. Walz, Z. Wu, E. Adli, and W. Lu, “X-ray radiation and electron injection from beam envelope oscillations in plasma wakefield accelerator experiment at FACET,” Proceedings of the North American Particle Accelerator Conference (NA-PAC),Pasadena, CA, Sept. 30-Oct. 4, 2013.

E. Adli, J. P. Delahaye, S. J. Gessner, M.J. Hogan, T. Raubenheimer, W. An, C. Joshi, and W. Mori, “A beam driven plasma-wakefield linear collider: From Higgs factory to multi-TeV,” Proceedings of the Snowmass on the Mississippi (CSS2013), Minneapolis, MN, July 29-August 6, 2013.

P. Spentzouris, E. Cormier-Michel, C. Joshi, J. Amundson, W. An, D.L. Bruhwiler, J.R. Cary, B. Cowan, V.K. Decyk, E. Esarey, R. A. Fonseca, A. Friedman, C.G.R. Geddes, D.P. Grote, I. Kourbanis, W.P. Leemans, W. Lu, W. B. Mori, C. Ng, J. Quiang, T. Roberts, R. D. Ryne, C. B. Schroeder, L.O. Silva, F. S. Tsung, J.L. Vay, and J. Vieira, “Snowmass 2013 Computing Frontier: Accelerator Science Working Group Summary,” Proceedings of the Snowmass on the Mississippi (CSS2013), Minneapolis, MN, July 29-August 6, 2013.

A. Stockem, F. Fiuza, E. Boella, R. A. Fonseca, L.O. Silva, C. Joshi and W.B. Mori, “Theoretical studies of collisionless shocks for laser-acceleration of ions,” Laser Acceleration of Electron, Protons, and Ions II,ed. by E. Esarey, C. B. Schroeder, W.P. Leemans, Proc. of SPIE Vol. 8779, 87791Q, Prague, Czech Republic, April 15-17, 2013.

F. Albert, B.B. Pollock, J. Shaw, K. A. Marsh, Y.-H. Chen, D. Alessi, J.E. Ralph, P. A. Michel, A. Pak, C. E. Clayton, S. H. Glenzer, and C. Joshi, “Betatron x-ray production in mixed gases,” Laser Acceleration of Electron, Protons, and Ions II,ed. by E. Esarey, C. B. Schroeder, W.P. Leemans, Proc. of SPIE Vol. 8779, 87790B, Prague, Czech Republic, April 15-17, 2013.

2012

Journals

F. Fiuza, A. Stockem, E. Boella, R. A. Fonseca, L. O. Silva, D. Haberberger, S. Tochitsky, C. Gong, W. B. Mori, and C. Joshi, “Laser-Driven Shock Acceleration of Monoenergetic Ion Beams,” Physical Review Letters,Vol. 197 215001 (2012).
F. Tsung, S. Ya. Tochitsky, D. J. Haberberger, W. B. Mori, and C. Joshi, “CO2 Laser Acceleration of Forward Directed MeV Proton Beams in a Gas Target at Critical Plasma Density," Journal of Plasma Physics 78(4) (August 2012).
N. Lemos, J. L. Martins, J. M. Dias, K. A. Marsh, A. Pak, and C. Joshi, “Forward Directed Ion-Acceleration in a LWFA with Ionization-Induced Injection,” Journal of Plasma Physics 78(4) (August 2012).
S.Ya. Tochitsky, J. J. Pigeon, D. J. Haberberger, C. Gong, and C. Joshi, “Amplification of multi-gigawatt 3 ps pulses in an atmospheric CO2 laser using ac Stark effect,”Optics Express 20 (13), 13762 (April 2012).
D. Haberberger, S. Tochitsky, F. Fiuza, C. Gong, R. A. Fonseca, L. O. Silva, W. B. Mori, and C. Joshi, "Collisionless shocks in laser-produced plasma generate monoenergetic high-energy proton beams, " Nature Physics 8, 95-99 (January 2012).

Conferences

E. Adli, S. Corde, R. J. England, J. Frederico, S. J. Gessner, M. J. Hogan, S. Li, M.D. Litos, Z. Wu, W. An, C. E. Clayton, K.A. Marsh, C. Joshi, W. Lu, W. Mori, N. Vafaei, P. Muggli, “First Results from the Electron Hose Instability Studies in FACET,” Proceedings of the International Particle Accelerator Conference (IPAC 2012), New Orleans, Louisiana, May 20-25, 2012

C. Joshi, “The Los Alamos Laser Acceleration of Particle Workshop and Beginning of the Advanced Accelerator Concepts Field,” Proceedings of the Advanced Accelerator Concepts Workshop, Austin, Texas, June 10-16, 2012.
S. Z. Li, E. Adli, R. J. England, J. Frederico, S. J. Gessner, M.J. Hogan, M.D. Litos, D. R. Walz, P. Muggli, W. An, C. E. Clayton, C. Joshi, W. Lu, K.A. Marsh, W. Mori, N. Vafaei, “Head Erosion with Emittance Growth in PWFA,” Proceedings of the Advanced Accelerator Concepts Workshop, Austin, Texas, June 10-16, 2012.
J.C. T. Thangaraj, C.S. Park, J.D. Lewis, P. Spentzouris, W. An, W. Mori, and C. Joshi, “PROTOPLASMA-Proton-driven plasma-wakefield experiment at Fermilab: Stages and Approach, “Proceedings of the Advanced Accelerator Concepts Workshop, Austin, Texas, June 10-16, 2012.
D. Haberberger, S. Tochitsky, and C. Joshi, “Monoenergetic Proton Beams from Laser Driven Shocks,” Proceedings of the Advanced Accelerator Concepts Workshop, Austin, Texas, June 10-16, 2012.
N. Vafaei-Najafabadi, J. L. Shaw, K.A. Marsh, C. Joshi, and M.J. Hogan, “Meter Scale Plasma Source for Plasma Wakefield Experiments,” Proceedings of the Advanced Accelerator Concepts Workshop, Austin, Texas, June 10-16, 2012.
J. L. Shaw, N. Vafaei-Najafabadi, K.A. Marsh, and C. Joshi, “100 MeV Injector Cell for a Staged Laser Wakefield Accelerator,” Proceedings of the Advanced Accelerator Concepts Workshop, Austin, Texas, June 10-16, 2012.
J. Pigeon, S. Tochitsky and C. Joshi, “Generation of Coherent, Broadband X-ray and Mid-IR Pulses in a Noble-Gas-Filled Hollow Waveguide,” Proceedings of the Advanced Accelerator Concepts Workshop, Austin, Texas, June 10-16, 2012.

C. Gong, S. Tochitsky, J. Pigeon, D. Haberberger, C. Joshi, “Ion acceleration in a gas jet using multi-terawatt CO2 laser pulses,” Proceedings of the Advanced Accelerator Concepts Workshop, Austin, Texas, June 10-16, 2012.
A. Davidson, M. Zheng, W. Lu, X. Xu, C. Joshi, L.O. Silva, J. Martins, R. Fonseca, and W. B. Mori, “3D simulations of pre-ionized and two-stage ionization injected laser wakefield accelerators,” Proceedings of the Advanced Accelerator Concepts Workshop, Austin, Texas, June 10-16, 2012.
C. Clayton, C. Joshi, N. Lopes, “Pulse-discharge Plasmas for Plasma Accelerator Applications,” Proceedings of the Advanced Accelerator Concepts Workshop, Austin, Texas, June 10-16, 2012.

2011

Journals

B. B. Pollock, C. E. Clayton, J. E. Ralph, F. Albert, A. Davidson, L. Divol, C. Filip, S. H. Glenzer, K. Herpoldt, W. Lu, K. A. Marsh, J. Meinecke, W. B. Mori, A. Pak, T. C. Rensink, J. S. Ross, J. Shaw, G. R. Tynan, C. Joshi, and D. H. Froula, "Demonstration of a Narrow Energy Spread, ~0.5 GeV Electron Beam from a Two-Stage Laser Wakefield Accelerator" Physical Review Letters Vol. 107 045001 (2011).
R. K. Kirkwood, P. Michel, R. London, J. D. Moody, E. Dewald, L. Yin, J. Kline, D. Hinkel, D. Callahan, N. Meezan, E. Williams, L. Divol, B. L. Albright, K. J. Bowers, E. Bond, H. Rose, Y. Ping, T. L. Wang, C. Joshi, W. Seka, N. J. Fisch, D. Turnbull, S. Suckewer, J. S. Wurtele, S. Glenzer, L. Suter, C. Haynam, O. Landen, and B. J. Macgowan, "Multi-beam Effects on Backscatter and its Saturation in Experiments with Conditions Relevant to Ignition" Phys. Plasmas Vol. 18 056311 (2011)
R. K. Kirkwood, Y. Ping, S. C. Wilks, N. Meezan, P. Michel, E. Williams, D. Clark, L. Suter, O. Landen, N.J. Fisch, E. O. Valeo, V. Malkin, D. Turnbull, S. Suckewer, J. Wurtele, T. L. Wang, S. F. Martins, C. Joshi, L. Yin, B. J. Albright, H.A. Rose, and K.J. Bowers,"Observation of amplification of light by Langmuir waves and its saturation on the electron kinetic timescale," Journal of Plasma Physics Vol. 77(4), pp. 521-528 August 2011
M. Hogan, C. Joshi, and P. Muggli, "FACET Shows the Way in Accelerator Research," CERN Courier March 2011 pp. 23-26

Conferences

A. W. Davidson, W. Lu, C. Joshi, L. O. Silva, J. Martins, R. A. Fonseca, and W. B. Mori, "Numerical Study of Self and Controlled Injection in 3-Dimensional Laser-Driven Wakefields," Proceedings of 2011 Particle Accelerator Conference, New York, NY, March 28-April 1, 2011.
B. B. Pollock, G. R. Tynan, F. Albert, C. Filip, S. H. Glenzer, J. Meinecke,A. Pak, J. E. Ralph, C. E. Clayton, C. Joshi, K. A. Marsh, J. Shaw, K. L. Herpoldt, and D. H. Froula, "The Effects of a Density Mismatch in a Two-Stage LWFA," Proceedings of 2011 Particle Accelerator Conference, New York, NY, March 28-April 1, 2011.
D. Haberberger, S. Tochitsky, C. Gong, and C. Joshi, "Production of 25 MeV Protons in CO2 Laser-Plasma Interactions in a Gas Jet," Proceedings of 2011 Particle Accelerator Conference, New York, NY, March 28-April 1, 2011.
G. Xia, A. Caldwell, K. Lotov, A. Pukhov, R. Assmann, F. Zimmermann, C. Huang, J. Vieira, N. Lopes, R. A. Fonseca, L. O. Silva, W. An, C. Joshi, W. Mori, W. Lu, and P. Muggli, "A Proposed Experimental Test of Proton-Driven Plasma Wakefield Acceleration Based on CERN SPS," Proceedings of 2011 Particle Accelerator Conference, New York, NY, March 28-April 1, 2011.
K. A. Marsh, C. E. Clayton, C. Joshi, W. Lu, W. B. Mori, A. Pak, L. O. Silva, N. Lemos, R. A. Fonseca, F. Albert, T. Doeppner, C. Filip, S. H. Glenzer, D. Price, J. Ralph, and B. B. Pollock, "Laser Wakefield Acceleration Beyond 1 GeV Using Ionization Induced Injection," Proceedings of 2011 Particle Accelerator Conference, New York, NY, March 28-April 1, 2011.
S. Ya. Tochitsky, F. Tsung, D. J. Haberberger, W. B. Mori, and C. Joshi, "Enhanced Laser-Driven Ion Acceleration via Forward Raman Scattering in a Ramped Gas Target," Proceedings of 2011 Particle Accelerator Conference, New York, NY, March 28-April 1, 2011.
S. Ya. Tochitsky, D. J. Haberberger, and C. Joshi, "Development of Picosecond CO2 Laser Driver for an MeV Ion Source," Proceedings of 2011 Particle Accelerator Conference, New York, NY, March 28-April 1, 2011.
R. J. England, J. Frederico, M. J. Hogan, C. Joshi, W. An, W. Lu, W. Mori, and P. Muggli, "A High Transformer Ratio Plasma Wakefield Accelerator Scheme for FACET," Proceedings of 2011 Particle Accelerator Conference, New York, NY, March 28-April 1, 2011.

2010

Journals

P. Muggli, I. Blumenfeld, C. E. Clayton, F. J. Decker, M. J. Hogan, C. Huang, R. Ischebeck, R. H. Iversion, C. Joshi, T. Katsouleas, N. Kirby, W. Lu, K.A. Marsh, W. B. Mori, E. Oz, R. H. Siemann, D. R. Walz, and M. Zhou,"Energy gain scaling with plasma length and density in the plasma wakefield accelerator," New Journal of Physics Vol. 12 p. 045022 (2010).

C. Joshi and V. Malka," Editorial: Focus on Laser- and Beam-Driven Plasma Accelerators," New Journal of Physics Vol, 12 p. 045003 (2010).
C. Joshi, "How lasers cast a light on accelerator science," CERN Courier, Vol. 50, December (2010).
J. E. Ralph, C. E. Clayton, F. Albert, B. B. Pollock, S. F. Martins, A. E. Pak, K. A. Marsh, J. L. Shaw, A. Till, J. P. Palastro,W. Lu, S. H. Glenzer, L. O. Silva, W. B. Mori, C. Joshi, and D. J. Froula,"Laser wakefield acceleration at reduced density in the self-guided regime," Physics of Plasmas, Vol. 17, 056709 (2010),

I. Blumenfeld, C.E. Clayton, F. J. Decker, M. J. Hogan, C. Huang, R. Ischebeck, R. H. Iverson, C. Joshi, T. Katsouleas, N. Kirby, W. Lu, K. A. Marsh, W. B. Mori, P. Muggli, E. Oz, R.H. Siemann, D. R. Walz, and M. Zhou, "Scaling of the Longitudinal Electric Field and Transformer Ratio in a non-linear Plasma Wakefield Accelerator," Physical Review Special Topics 13, 111301(2010).

F. Fiuza, L. O. Silva, and C Joshi, "High-brilliance synchrotron radiation induced by the plasma magnetic mode," Phys. Rev. ST Accel. Beams, 13(8):080701, Aug 2010.

D. Haberberger, S. Tochitsky, and C. Joshi. "Fifteen Terawatt Picosecond CO2 Laser System," Optics Express, 18(17):17865-17875, 2010.

C. E. Clayton, J. E. Ralph, F. Albert, R.A. Fonseca, S. H. Glenzer, C. Joshi, W. Lu, K. A. Marsh, S. F. Martins, W. B. Mori, A. Pak, F. S. Tsung, B. B. Pollock, J. S. Ross, L. O. Silva, and D. H. Froula,"Self-Guided Laser Wakefield Acceleration beyong 1 GeV Using Ionization-Induced Injection," Physical Review Letters, Vol. 105, 105003, September (2010).
M. J. Hogan, T. O. Raubenheimer, A. Seryi, P. Muggli, T. Katsouleas, C. Huang, W. Lu, W. An, K. A. Marsh, W. B. Mori, C. E. Clayton, and C. Joshi, "Plasma wakefield acceleration experiments at FACET," New Journal of Physics Vol. 12 p. 055030 (2010).

W. Lu, W. An, M. Zhou, C. Joshi, C. Huang, and W. B. Mori, "The optimum plasma density for plasma wakefield excitation in the blowout regime," New Journal of Physics Vol. 12 p. 085002 (2010).

Conferences

W. An, W. Lu, C. Joshi, W. B. Mori, C. Huang, M. J. Hogan, S. F. Martins, and L. O. Silva, "Simulations of Plasma Wake Field Accelerator experiments at FACET," Proceedings of the Advanced Accelerator Concepts Workshop, Annapolis, MD, June 13-19, 2010.

D. Haberberger, S. Tochitsky, C. Gong, and C. Joshi, "Production of Multi-Terawatt Time-Structured CO2 Laser Pulses for Ion Acceleration," Proceedings of the Advanced Accelerator Concepts Workshop, Annapolis, MD, June 13-19, 2010.
S. Tochitsky, P. Musumeci, J.B. Rosenzweig, C. Joshi, and S.C.Gottschalk, "Seeded FEL Microbunching Experiments at the UCLA Neptune Laboratory," Proceedings of the Advanced Accelerator Concepts Workshop, Annapolis, MD, June 13-19, 2010.
G. Xia, A. Caldwell, K. Lotov, A. Pukhov, N. Kumar, W. An, W. Lu, W. B. Mori, C. Joshi, C. Huang, P. Muggli, R. Assmann, and F. Zimmermann, "Update on proton driven plasma wakefield acceleration," Proceedings of the Advanced Accelerator Concepts Workshop, Annapolis, MD, June 13-19, 2010.
C. Joshi, C. Clayton, D. Froula, K. Marsh, A. Pak, and J. Ralph,"Acceleration of electrons by a laser wakefield accelerator (LWFA) operating in the self-guided regime," Proceedings of Frontiers in Optics, Rochester, NY, October 24-28,2010.

2009

Journals

S. Trubnick, S. Tochitsky and C. Joshi, "Fabrication and characterization of teflon bonded periodic GaAs structures for THz generation," Optics Express 17 (4), 2385 February (2009).

F. Fang, C.E. Clayton, K. A. Marsh, A. E. Pak, J. E. Ralph, N. C. Lopes, C. Joshi, "Pump Depletion Limited Evolution of the Relativistic Plasma Wave-Front in a Forced Laser-Wakefield Accelerator," Plasma Phys. Control. Fusion 51, 024003(2009).
J. E. Ralph, K. A. Marsh, A. E. Pak, W. Lu, W. B. Mori, F. Fang, C. E. Clayton, T. L. Wang and C. Joshi, "Self-Guiding of Ultra-short, Relativistically Intense Laser Pulses through Underdense Plasmas in the Blowout Regime," Physical Review Letters 102 (17), 175003 (May 2009).

X. Wang, P. Muggli, T. Katsouleas, C. Joshi, W. B. Mori,R. Ischebeck, M. J. Hogan, "Optimization of Positron Trapping and Acceleration in an Electron-beam-driven Plasma Wakefield Accelerator," Physical Review Special Topics-AB, 12(5), 051303 (May 2009).

Y. Ping, R. K. Kirkwood, T.L. Wang, d. S. Clark, S. C. Wilks, N. Meezan, R. L. Berger, J. Wurtele, N. J. Fisch, V. M. Malkin, E. J. Valeo, S. F. Martins and C. Joshi, "Development of a nanosecond-laser-pumped Raman amplifier for short laser pulses in plasmas," Physics of Plasmas, Vol. 16, 123113 (2009).
S. Ya. Tochitsky, O.B. Williams, P. Musumeci, C. Sung, D. J. Haberberger, A. M. Cook, J. B. Rosenzweig, and C. Joshi, "Efficient Harmonic Microbunching in a 7^th Order Inverse-Free-Electron Laser Interaction," Physical Review Special Topics-AB, 12(5), 050703 (May 2009).

C. Joshi, "Surfing Plasma Waves: A New Paradigm for Particle Accelerators," Plasma and Fusion Research: Review Articles, Vol. 4, 045 (2009).

N. Kirby, I. Blumenfeld, C. E. Clayton, F.J. Decker, M.J. Decker, M. Hogan, C. Huang, R. Ischebeck, R. H. Iverson, C. Joshi, T. Katsouleas, W. Lu, K.A. Marsh, S. Martins, W.B. Mori, P. Muggli, E. Oz, R.H. Siemann, D. R. Walz, and M. Zhou, "Transverse Emittance and Current of Multi-GeV Trapped Electrons in a Plasma Wakefield Acceleration," Physical Review Special Topics-AB, 12 (5) 053101 May (2009).

D.H. Froula, C.E. Clayton, T. Doppner, R.A. Fonseca, K.A. Marsh, C.J. Barty, L. Divol, S.H. Glenzer, C. Joshi , W. Lu, S.F. Martins, P. Michel, W.B. Mori, J.P. Palastro, B.B. Pollock, A. Pak , J.E. Ralph, J.S. Ross, C. Siders, L.O. Silva, T. Wang, "Measurements of the critical power for self-injection of electrons in a laser wakefield Accelerator," Physical Review Letters, Vol. 103, 215006 (November, 2009).
A. Pak, K.A. Marsh, S.F Martins., W. Lu, W.B. Mori, C. Joshi, "Injection and trapping of tunnel-ionized electrons into laser-produced wakes," Physical Review Letters, Vol. 104, 025003 (January 2010).

Conferences

J. Martins, R.A. Fonseca, S. Martins, L.O. Silva, C. Joshi, W.B. Mori, "Emission of collimated x-ray radiation in laser-wakefield experiments using particle tracking in PIC simulations", Proceedings of the Particle Accelerator Conference, Vancouver, B.C., May 4-8, (2009) pp.1-3

A. Pak, C. Joshi, K.A. Marsh, S.F. Martins, W.B. Mori, "Investigation of Ionization Induced Trapping in a Laser Wakefield Accelerator," Proceedings of the Particle Accelerator Conference, Vancouver, B.C., May 4-8, (2009) pp. 1-3.

W. Lu, W. An, C. Huang, C. Joshi, W.B. Mori, M. Hogan, T. Raubenheimer, A. Seryi, "High transformer ratio PWFA for application on XFELs", Proceedings of the Particle Accelerator Conference, Vancouver, B.C., May 4-8, (2009) pp.1-3.

C. Huang, W. An, C. Clayton, C. Joshi, W. Lu, K. Marsh, W.B. Mori, M. Tzoufras, T. Katsouleas, I. Blumenfeld, M. Hogan, N. Kirby, T. Raubenheimer, A. Seryi, P. Muggli, "Simulations of 25 GeV PWFA sections: path towards a PWFA linear collider", Proceedings of the Particle Accelerator Conference, Vancouver, B.C., May 4-8, (2009) pp.1-3.

A. Seryi, M. Hogan, S. Pei, T. Raubenheimer, P. Tenenbaum, T. Katsouleas, C. Huang, C. Joshi, W.B. Mori, P. Muggli,, "A concept of plasma wake field acceleration linear collider (PWFA-LC)", Proceedings of the Particle Accelerator Conference, Vancouver, B.C., May 4-8, (2009) pp.1-3.

D. Haberberger, C. Joshi, K. Marsh, A. Pak, S. Tochitsky, "Proton Acceleration in CO₂ Laser-Plasma Interactions at Critical Density," Proceedings of the Particle Accelerator Conference, Vancouver, B.C., May 4-8, (2009) pp.1-3.

S. Tochitsky, A. Cook, D. Haberberger, C. Joshi, P. Musumeci, J. Rosenzweig, C. Sung, O. Williams, "Demonstration of efficient electron-radiation interaction in a 7^th harmonic IFEL," Proceedings of the Particle Accelerator Conference, Vancouver, B.C., May 4-8, (2009) pp.1-3.

B. B. Pollock, J.S. Ross, G. R. Tynan, L. Divol, S. H. Glenzer, V. Leurent, J. P. Palastro, J.E. Ralph, D.H. Froula, C. E. Clayton, K.A. Marsh, A. E. Pak, T.L. Wang, C. Joshi, "Two-screen method for determining electron beam energy and deflection from laser wakefield acceleration," Proceedings of the Particle Accelerator Conference, Vancouver, B.C., May 4-8, (2009) pp.1-3.

2008

Journals

P. Muggli, B. E. Blue, C.E. Clayton, F.J. Decker, M.J. Hogan, C. Huang, C. Joshi, T. C. Katsouleas, W. Lu, W B. Mori, C. L. O'Connell, R. H. Siemann, D. Walz, and M. Zhou, "Halo formation and emittance growth of positron beams in plasmas," Physical Review Letters, Vol. 101, 055001, August (2008).

X. Wang, R Ischebeck, P. Muggli, T. Katsouleas, C. Joshi, W.B. Mori, and M.J. Hogan, "Positron Injection and Acceleration on the Wake Driven by an Electron Beam in a Foil-and-Gas Plasma," Physical Review Letters, Vol. 101, 124801, September (2008).

Conferences

C. DesRosiers, V. Moskvin, M. Cao, C. J. Joshi, M. Langer, "Laser-plasma generated very high energy electron in radiation therapy of the prostate," Proceedings of the SPIE 2008 Conference, San Jose, CA January 2008.

S. Ya. Tochitsky et al. "Seeded FEL Amplifier-Buncher in the 0.5-9 THz for Advanced Accelerators," Proceedings of the 13^th Advanced Accelerator Concepts Workshop, Santa Cruz, CA, July 27-Aug. 2, 2008.

S. Tochitsky et al. "Femtosecond Microbunching of Electron Beam in a 7th Harmonic Coupled IFEL," Proceedings of the 13^th Advanced Accelerator Concepts Workshop, Santa Cruz, CA, July 27-Aug. 2, 2008.

A. E. Pak et al., "Indication of Local Laser Pump Depletion via Transmitted Self-Guided Laser Light," Proceedings of the 13^th Advanced Accelerator Concepts Workshop, Santa Cruz, CA, July 27-Aug. 2, 2008.

V. Leurent et al., "Study of X-Ray Radiation from a Laser Wakefield Accelerator," Proceedings of the 13^th Advanced Accelerator Concepts Workshop, Santa Cruz, CA, July 27-Aug. 2, 2008.

N. Kirby et al. "Emittance and Current of Electrons Trapped in a Plasma Wakefield Accelerator," Proceedings of the 13^th Advanced Accelerator Concepts Workshop, Santa Cruz, CA, July 27-Aug. 2, 2008.

I. Blumenfeld et al. "Measurement of the Decelerating Wake in a Plasma Wakefield Accelerator," Proceedings of the 13^th Advanced Accelerator Concepts Workshop, Santa Cruz, CA, July 27-Aug. 2, 2008.

X. Wang et al.,"Threshold for Trapping Positrons in the Wake Driven by an Ultra-relativistic Electron Bunch," Proceedings of the 13^th Advanced Accelerator Concepts Workshop, Santa Cruz, CA, July 27-Aug. 2, 2008.

S. R. Nagel, S. P. D. Mangles, P. M. Nilson, M. C. Kaluza, A. G. R. Thomas, L. Willingale, Z. Najmudin, A. E. Dangor, K. Krushelnick, R.J. Clarke, N. Lopes, K. Marsh, and C. Joshi, "Electron acceleration from underdense plasma with the Vulcan Petawatt Laser," High Power Laser Science, 2005/2006 Central Laser Facility Annual Report, p. 44-46.

2007

Journals

I. Blumenfeld, C. E. Clayton, F-J. Decker, M.J. Hogan, C. Huang, R. Ischebeck, R. Iverson, C. Joshi, T. Katsouleas, N. Kirby, W. Lu, K. A. Marsh, W. B. Mori, P. Muggli, E. Oz, R. H. Siemann, D. Walz, and M. Zhou, "Energy Doubling of 42 GeV Electrons in a Metre Scale Plasma Wakefield Accelerator," Nature, Vol. 445, 741 (2007).

E. Oz, S. Deng, T. Katsouleas, P. Muggli, C. D. Barnes, I. Blumenfeld, F. J. Decker, P. Emma, M. J. Hogan, R. Ischebeck, R. H. Iverson, N. Kirby, P. Krejcik, C. O'Connell, R. H. Siemann, D. Walz, and D. Auerbach, C. E. Clayton, C. Huang, D. K. Johnson, C. Joshi, W. Lu, K. A. Marsh, W. B. Mori, M. Zhou, "Ionization-Induced Electron Trapping in Ultra-relativistic Plasma Wakes," Physical Review Letters 98, 084801(2007).

W. Lu, M. Tzoufras, C. Joshi, F. S. Tsung, W. B. Mori, J. Vieira, R. A. Fonseca, and L. O. Silva, "Generating multi-GeV electron bunches using single stage laser wakefield acceleration in a 3D nonlinear regime," Phys. Rev. ST Accel. Beams 10, 061301:1-12 (2007).

C. Joshi, "The development of laser- and beam-driven plasma accelerators as an experimental field," Review Paper, Physics of Plasmas 14, 055301 (2007).

C. Joshi, "Harnessing the power of the plasma wakefield," CERN Courier, June 2007, pp. 28-31.

S. Ya. Tochitsky, C. Sung, S. E. Trubnick, C. Joshi, and K. L. Vodopyanov, "High-power tunable, 0.5-3 THz radiation source based on nonlinear difference frequency mixing of CO₂ laser lines," Journal of the Optical Society of America B 24, 2509-2516, Sept (2007).

C. Huang, W. Lu, M. Zhou, C.E. Clayton, C. Joshi, W. B. Mori, P. Muggli, S. Deng, E. Oz, T. Katsouleas, M.J. Hogan, I. Blumenfeld, F.J. Decker, R. Ischebeck, R. H. Iverson, N.A. Kirby, and D. Walz, "Hosing instability in the blow-out regime for plasma-wakefield acceleration," Physical Review Letters, Vol. 99, 255001, December (2007).

Conferences

C. Joshi, "Plasma Accelerators-Progress and the Future," Proceedings of the 2007 Particle Accelerator Conference, June 25-29, 2007, Albuquerque, NM.

S. Tochitsky, C. Joshi, C. Sung, "Development of a THz Seed Source for FEL Microbunching Experiment at the Neptunre Laboratory," Proceedings of the 2007 Particle Accelerator Conference, June 25-29, 2007, Albuquerque, NM
R. Erickson, K. L.F. Bane, L. Bentson, C. Hast, M. Hogan, R. Ischebeck, Y. Nosochkov, J. Seeman, R. Siemann, D. Walz, C. Clayton, C. Joshi, K. Marsh, J. Rosenzweig, G. Travish, P. Muggli, " ," Proceedings of the 2007 Particle Accelerator Conference, June 25-29, 2007, Albuquerque, NM.

M. Hogan, I. Blumenfeld, F-J. Decker, R. Ischebeck, R. Iverson, N. Kirby, R. Siemann, D. Walz, C. Clayton, C. Huang, C. Joshi, W. Lu, K. Marsh, W. Mori, M. Zhou, T. Katsouleas, P. Muggli and E. Oz, " Results of the Energy Doubler Experiment at SLAC," Proceedings of the 2007 Particle Accelerator Conference, June 25-29, 2007, Albuquerque, NM.

P. Muggli, T. Katsouleas, E. Oz, M. K. Berry, I. Blumenfeld, F-J. Decker, M. Hogan, R. Ischebeck, R. Iverson, N. Kirby, R. Siemann, D. Walz, C. Clayton, C. Huang, C. Joshi, W. Lu, K. Marsh, W. Mori, M. Zhou, "Scaling of Energy Gain with Plasma Parameters in a Plasma Wakefield Accelerator," Proceedings of the 2007 Particle Accelerator Conference, June 25-29, 2007, Albuquerque, NM.

R. Ishebeck, M. K. Berry, I. Blumenfeld, F-J. Decker, M. Hogan, R. Iverson, N. Kirby, R. Siemann, D. Walz, C. Clayton, C. Huang, C. Joshi, W. Lu, K. Marsh, W. Mori, M. Zhou, T. Katsouleas, P. Muggli, E. Oz, "Measurement of a Plasma Wakefield Accelerator," Proceedings of the 2007 Particle Accelerator Conference, June 25-29, 2007, Albuquerque, NM.

E. Oz, T. Katsouleas, P. Muggli, M. K. Berry, Blumenfeld, F-J. Decker, M. Hogan, R. Ischebeck, R. Iverson, N. Kirby, R. Siemann, D. Walz, C. Clayton, C. Huang, C. Joshi, W. Lu, K. Marsh, W. Mori, M. Zhou, "A Brightness Transformer Using a Beam Driven Plasma Wakefield Accelerator," Proceedings of the 2007 Particle Accelerator Conference, June 25-29, 2007, Albuquerque, NM.(not published)

E. Oz, S. Deng, T. Katsouleas, P. Muggli, C. D. Barnes, I. Blumenfeld, F.J. Decker, P. Emma, M. J. Hogan, R. Ischebeck, R. H. Iverson, N. Kirby, P. Krejcik, C. O'Connell, R. H. Siemann, D. Walz, D. Auerbach, C. E. Clayton, C. Huang, D. K. Johnson, C. Joshi, W. Lu, K. A. Marsh, W. B. Mori, and M. Zhou, "Ionization-induced Electron Trapping in Ultrarelativistic Plasma Wakes," Proceedings of the 2007 Particle Accelerator Conference, June 25-29, 2007, Albuquerque, NM.

P. Musumeci, S. Ya. Tochitsky, R. Tikhoplav, J. B. Rosenzweig, C. Joshi, "7^th Harmonic Buncher Experiment at the UCLA Neptune Laboratory," Proceedings of the FEL 2007 Conference, Novosibirsk, September 2007.

2006

Journals

C. Joshi and W. B. Mori, "The Status and Evolution of Plasma Wakefield Particle Accelerators," Phil. Trans. R. Soc. A, Vol. 364, 577-584 (2006).

C. Joshi, "Plasma Accelerators," Scientific American, Vol. 294, 41-47 (Feb. 2006).

S. Deng, C. D. Barnes, C. E. Clayton, C. O'Connell, F.-J. Decker, R.A. Fonseca, C. Huang, M. J. Hogan, R. Iverson, D.K. Johnson, C. Joshi, T. Katsouleas, P. Krejcik, W. Lu, W. B. Mori, P. Muggli, E. Oz, F. Tsung, D. Walz, and M. Zhou, "Hose Instability and Wake Generation by an Intense Electron Beam in a Self-Ionized Gas," Physical Review Letters, Vol. 96, 045001, January (2006).

C. L. O'Connell, C. D. Barnes, F.-J. Decker, M. J. Hogan, R. Iverson, P. Krejcik, R. Siemann, and D. R. Walz, C. E. Clayton, C. Huang, D. K. Johnson, C. Joshi, W. Lu, K. A. Marsh, W. Mori, M. Zhou, S. Deng, T. Katsouleas, P. Muggli, and E. Oz, "Plasma production via field ionization," Physical Review Special Topics-AB 9, 101301:1-10, October (2006).

D. K. Johnson, D. Auerbach, I. Blumenfeld, C. D. Barnes, C. E. Clayton, F.J. Decker, S. Deng, P. Emma, M. J. Hogan, C. Huang, R. Ischebeck, R. Iverson, C. Joshi, T. C. Katsouleas, N. Kirby, P. Krejcik, W. Lu, K. A. Marsh, W. B. Mori, P. Muggli, C. L. O'Connell, E. Oz, R. H. Siemann, D. Walz, and M. Zhou, "Positron production by x rays emitted by betatron motion in a plasma wiggler," Physical Review Letters 97, 175003: 1-4, October (2006).

F. S. Tsung, W. Lu, M. Tzoufras, W. B. Mori, C. Joshi, J. M. Vieira, L. O. Silva, and R. A. Fonseca, "Simulation of monoenergetic electron generation via laser wakefield accelerators for 5-25 TW lasers," Physics of Plasmas 13, 056708:1-12 (2006).

C. Sung, S. Ya. Tochitsky, S. Reiche, J. B. Rosenzweig, C. Pellegrini and C. Joshi, "Seeded free-electron and inverse free-electron laser techniques for radiation amplification and electron microbunching in the terahertz range," Physical Review Special Topics-Accelerators and Beams 9, 120703:1-9 (2006).

Conferences

D. K. Johnson, I. Blumenfeld, C. D. Barnes, C. E. Clayton, F.J. Decker, S. Deng, P. Emma, M. J. Hogan, C. Huang, R. Ischebeck, R. Iverson, C. Joshi, T. C. Katsouleas, N. Kirby, P. Krejcik, W. Lu, K. A. Marsh, W. B. Mori, P. Muggli, C. L. O'Connell, E. Oz, R. H. Siemann, D. Walz, and M. Zhou, "Demonstration of a novel positron source based on a plasma wiggler," (AIP Conference Proceedings No. 877), Advanced Accelerator Concepts, 12^th Workshop, Lake Geneva, WI, eds., M. Conde and C. Eyberger, pp. 721-727, July 10-15, 2006.

F. Fang, C. E. Clayton, N. C. Lopes, H. Ito, K. A. Marsh, and C. Joshi, "A Plasma Lens for High Intensity Laser Focusing," (AIP Conference Proceedings No. 877), Advanced Accelerator Concepts, 12^th Workshop, Lake Geneva, WI, eds., M. Conde and C. Eyberger, pp. 721-727, July 10-15, 2006.

N. Kirby, D. Auerbach, M. Berry, I. Blumenfeld, C. E. Clayton, F.-J. Decker, M. J. Hogan, C. Huang, R. Ischebeck, D. Johnson, C. Joshi, T. Katsouleas, W. Lu, K. A. Marsh, W. B. Mori, P. Muggli, E. Oz, R. H. Siemann, D. Walz, and M. Zhou, "Energy Measurements of Trapped Electrons from a Plasma Wakefield Accelerator," (AIP Conference Proceedings No. 877), Advanced Accelerator Concepts, 12^th Workshop, Lake Geneva, WI, eds., M. Conde and C. Eyberger, pp. 541-546, July 10-15, 2006.

R. Ischebeck. M. Berry, I. Blumenfeld, C. E. Clayton, F.-J. Decker, M. J. Hogan, C. Huang, R. Iverson, C. Joshi, T. Katsouleas, W. Lu, K. A. Marsh, W. B. Mori, P. Muggli, E. Oz, R. H. Siemann, D. Walz, and M. Zhou, "A Meter-Scale Plasma Wakefield Accelerator," (AIP Conference Proceedings No. 877), Advanced Accelerator Concepts, 12^th Workshop, Lake Geneva, WI, eds., M. Conde and C. Eyberger, pp. 3-7, July 10-15, 2006.

I. Blumenfeld, D. Auerbach, M. Berry, C. E. Clayton, F.-J. Decker, M. J. Hogan, C. Huang, R. Ischebeck, R. Iverson, D. Johnson, C. Joshi, T. Katsouleas, N. Kirby, W. Lu, K. A. Marsh, W. B. Mori, P. Muggli, E. Oz, R. H. Siemann, D. Walz, W. Zacherl, and M. Zhou, " Electron Bunch Length Measurements in the E-167 Plasma Wakefield Experiment," (AIP Conference Proceedings No. 877), Advanced Accelerator Concepts, 12^th Workshop, Lake Geneva, WI, eds., M. Conde and C. Eyberger, pp. 499-503, July 10-15, 2006.

O. Williams, A. Doyuran, R. J. England, C. Joshi, J. B. Rosenzweig, S. Tochitsky, and G. Travish, "Status of the Polarized Nonlinear Inverse Compton Scattering Experiment at UCLA," (AIP Conference Proceedings No. 877), Advanced Accelerator Concepts, 12^th Workshop, Lake Geneva, WI, eds., M. Conde and C. Eyberger, pp. 475-481, July 10-15, 2006.

X. Wang, R. Ischebeck, C. Joshi, P. Muggli, and T. Katsouleas, "Novel Module for Plasma Wakefield Acceleration of a Positron Beam," (AIP Conference Proceedings No. 877), Advanced Accelerator Concepts, 12^th Workshop, Lake Geneva, WI, eds., M. Conde and C. Eyberger, pp. 568-572, July 10-15, 2006.

D. K. Johnson, C. E. Clayton, C. Huang, C. Joshi, W. Lu, K. A. Marsh, W. B. Mori, M. Zhou, I. Blumenfeld, C. D. Barnes, F.J. Decker, P. Emma, M. J. Hogan, R. Ishebeck, R. Iverson, N. Kirby, P. Krejcik, R. H. Siemann, C. L. O'Connell, D. Walz, S. Deng, T. C. Katsouleas, P. Muggli, and E. Oz, "Positron source from x-rays emitted by plasma betatron motion," 3 pp., Proceedings of the LINAC '06, Knoxville, TN, August 21-25, 2006.

S. Ya. Tochitsky, S. Reiche, C. Sung, J. B. Rosenzweig, C. Pellegrini, and C. Joshi, "Laser Beat-Wave Microbunching of Relativistic Electron Beam in the THz Range," 3 pp., Proceedings of the LINAC '06, Knoxville, TN, August 21-25, 2006.

2005

Journals

P. Musemeci, S. Ya. Tochitsky, S. Boucher, C. E. Clayton, A. Doyuran, R. J. England, C. Joshi, C. Pellegrini, J. E. Ralph, J. B. Rosenzweig, C. Sung, S. Tolmachev , G. Travish, A. A. Varfolomeev, A. A. Varfolomeev Jr., T. Yarovoi, and R. B. Yoder, "High Energy Gain of Trapped Electrons in a Tapered Diffraction-Dominated Inverse-Free-Electron Laser," Physical Review Letters, Vol. 94, 154801 (2005).

S. Ya. Tochitsky, J. E. Ralph, C. Sung and C. Joshi, "Generation of megawatt-power terahertz pulses by noncollinear difference frequency mixing in GaAs," Journal of Applied Physics, Vol. 98, 026101 (2005).

M. J. Hogan, C. D. Barnes, C. E. Clayton, F. J. Decker, S. Deng, P. Emma, C. Huang, R. H. Iverson, D. K. Johnson, C. Joshi, T. Katsouleas, P. Krejcik, W. Lu, K. A. Marsh, W. B. Mori, P. Muggli, C. L. O'Connell, E. Oz, R. H. Siemann, and D. Walz, "Multi-GeV energy gain in a plasma-wakefield accelerator," Physical Review Letters, Vol. 95, 054802 (2005).

Conferences

P. Musumeci, S. Boucher, C. Clayton, A. Doyuran, R. J. England, C. Joshi, C. Pellegrini, J. Ralph, J. Rosenzweig, C. Sung, S. Ya. Tochitsky, G. Travish, R. Yoder, S. Tolmachev, A. Varfolomeev, A. Varfolomeev, T. V. Yarovoi , "High Energy Gain IFEL at UCLA Neptune Laboratory," Proceedings of the 2005 PAC Conference, Knoxville, TN, May 16-20, 2005, pp. 500-504.

E. Oz, S. Deng, T. Katsouleas, P. Muggli, F. J. Decker, M. Hogan, R. Iverson, P. Krejcik, C. O'Connell, D. Walz, C. Clayton, C. Huang, D. K. Johnson, C. Joshi, W. Lu, K. Marsh, M. Zhou, "Plasma Dark Current in Plasma Wake Field Accelerators (PWFA)," Proceedings of the 2005 PAC Conference, Knoxville, TN, May 16-20, 2005, pp. 3444-3446.

C. Sung, C. Clayton, C. Joshi, P. Musumeci, C. Pellegrini, J. Ralph, S. Reiche, J. Rosenzweig, S. Ya. Tochitsky, "Terahertz IFEL/FEL Microbunching for Plasma Beatwave Accelerators," Proceedings of the 2005 PAC Conference, Knoxville, TN, May 16-20, 2005, pp. 2812-2814.

S. Reiche, C. Joshi, C. Pellegrini, J. Rosenzweig, S. Ya. Tochitsky, G. Shvets, "Feasibility Study of a Laser Beat-Wave Seeded THz FEL at the Neptune Laboratory," Proceedings of the 2005 PAC Conference, Knoxville, TN, May 16-20, 2005, pp. 1721-1723.

J. Ralph, C. Joshi, J. Rosenzweig, C. Sung, S. Ya. Tochitsky , "Production of Terahertz Seed Radiation for FEL/IFEL Microbunchers for Second Generation Plasma Beatwave Experiments in Neptune," Proceedings of the 2005 PAC Conference, Knoxville, TN, May 16-20, 2005, pp. 2780-2782.

M. Zhou, C. Clayton, V. K. Decyk, J. Devon, C. Huang, C. Joshi, W. Lu, W. Mori, F. Shih-Yu Tsung, C. Barnes, F. J. Decker, R. Iverson, C. O'Connell, D. Walz, S. Deng, T. Katsouleas, P. Muggli, E. Oz, "Modeling Self-Ionized Plasma Wakefield Acceleration for Afterburner Parameters Using QuickPIC," Proceedings of the 2005 PAC Conference, Knoxville, TN, May 16-20, 2005, pp. 2905-2907.

C. Huang, C. Clayton, J. Devon, C. Joshi, W. Lu, W. Mori, M. Zhou , C. Barnes, F. J. Decker, M. Hogan, R. Iverson, "Modeling TeV Class Plasma Afterburners," Proceedings of the 2005 PAC Conference, Knoxville, TN, May 16-20, 2005, pp. 2666-6668.

C. Barnes, F. J. Decker, P. Emma, M. Hogan, R. Ischebeck, R. Iverson, P. Krejcik, C. O'Connell, R. Siemann, D. Walz, C. Clayton, C. Huang, D. K. Johnson, C. Joshi, W. Lu, K. Marsh, S. Deng, T. Katsouleas, P. Muggli, E. Oz, "Determination of Longitudinal Phase Space in SLAC Main Accelerator Beams," Proceedings of the 2005 PAC Conference, Knoxville, TN, May 16-20, 2005, pp. 1856-1858.

K. Marsh, C. Clayton, C. Huang, D. K. Johnson, C. Joshi, W. Lu, W. Mori, M. Zhou, C. Barnes, F. J. Decker, M. Hogan, R. Iverson, P. Krejcik, C. O'Connell, R. Siemann, D. Walz , S. Deng, T. Katsouleas, P. Muggli, E. Oz, "Beam Matching to a Plasma Wake Field Accelerator Using a Ramped Density Profile at the Plasma Boundary," Proceedings of the 2005 PAC Conference, Knoxville, TN, May 16-20, 2005, pp. 2702-2704.

D. K. Johnson, C. Clayton, C. Huang, C. Joshi, W. Lu, K. Marsh, W. Mori, M. Zhou (UCLA, Los Angeles, California), C. Barnes, F. J. Decker, M. Hogan, R. Iverson, P. Krejcik, C. O'Connell, R. Siemann, D. Walz (SLAC, Menlo Park, California), S. Deng, T. Katsouleas, P. Muggli, E. Oz, "Positron Source from Betatron X-Rays Emitted in a Plasma Wiggler," Proceedings of the 2005 PAC Conference, Knoxville, TN, May 16-20, 2005, pp.1625-1627.

C. O'Connell, C. Barnes, F. J. Decker, M. Hogan, R. Iverson, P. Krejcik, R. Siemann, D. Walz (SLAC, Menlo Park, California), C. Clayton, C. Huang, D. K. Johnson, C. Joshi, W. Lu, K. Marsh, W. Mori, M. Zhou (UCLA, Los Angeles, California), S. Deng, T. Katsouleas, P. Muggli, E. Oz, "Field ionization of neutral lithium vapor using a 28.5 GeV electron beam," Proceedings of the 2005 PAC Conference, Knoxville, TN, May 16-20, 2005, pp. 1904-1906.

A. Doyuran, R. J. England, C. Joshi, J. Lim, J. Rosenzweig, S. Ya. Tochitsky, G. Travish, O. Williams, "Investigation of X-Ray Harmonics of the Polarized Inverse Compton Scattering Experiment at UCLA," Proceedings of the 2005 PAC Conference, Knoxville, TN, May 16-20, 2005, pp. 2303-2305.

C. Sung, S. Ya. Tochitsky, J. E. Ralph, S. Reiche, J.B. Rosenzweig, C. Pellegrini, C. joshi, "High-Gain Seeded FEL Amplifier Tunable in the Terahertz Range," Proceedings of the FEL 2005 Conference, Stanford, CA (August 2005).

O. Williams, A. Doyuran, R. J. England, C. Joshi, J. Lim. J. B. Rosenzweig, S. Tochitsky, G. Travish, "Investigation of X-ray Harmonics of the Polarized Nonlinear Inverse Compton Scattering Experiment at UCLA," Proceedings of the FEL 2005 Conference, Stanford, CA (August 2005).

2004

Journals

C. V. Filip, R. Narang, S. Ya. Tochitsky, C. E. Clayton, P. Musumeci, R. B. Yoder, K. A. Marsh, J. B. Rosenzweig, C. Pellegrini, and C. Joshi, "Nonresonant beat-wave excitation of relativistic plasma waves with constant phase-velocity for charged-particle acceleration," Physical Review E, Vol. 69, 026404:1-8 (2004).

S. Ya. Tochitsky, R. Narang, C. V. Filip, P. Musumeci, C. E. Clayton, R. B. Yoder, K. A. Marsh, J. B. Rosenzweig, C. Pellegrini, and C. Joshi, "Enhanced Acceleration of Injected Electrons in a Laser Beat-Wave-Induced Plasma Channel," Physical Review Letters, Vol. 92 (9), pp. 095004:1-4 (March 2004).

S. Ya. Tochitsky, R. Narang, C. V. Filip, P. Musumeci, C. E. Clayton, R. B. Yoder, K. A. Marsh, J. B. Rosenzweig, C. Pellegrini, and C. Joshi, "Experiments on Laser Driven Beatwave Acceleration in a Ponderomotively Formed Plasma Channel," Physics of Plasmas, Vol. 11, (5), pp. 2875-2881, May (2004).

P. Muggli, B.E. Blue, C.E. Clayton, S. Deng, C.L. O'Connell, F.-J. Decker, M.J. Hogan, C. Huang, R. Iverson, C. Joshi , T.C. Katsouleas, W. Lu, K.A. Marsh, W.B. Mori, R. Siemann, "Meter-Scale Plasma Wakefield Accelerator Driven by a Matched Electron Beam," Physical Review Letters, Vol. 93, 014802:1-4 July (2004).

F. S. Tsung, R. Narang, W. B. Mori, C. Joshi, R. A. Fonseca, and L. O. Silva, "Near GeV energy laser wakefield acceleration of self-injected electrons in a cm scale plasma channel, " Physical Review Letters, Vol. 93, No.18, pp. 185002:1-4 (2004).

Conferences

B. E. Blue, P. Muggli, M.J. Hogan, C. L. O'Connell, K. A. Marsh, D. Walz, F-J. Decker, C. Huang, R. Iverson, C. E. Clayton, W. B. Mori, T. C. Katsouleas, R. H. Siemann, C. Joshi, "Wake generation and energy transfer relating to the transport of intense relativistic particle beams in an underdense plasma," Third International Conference on Inertial Fusion Sciences and Applications (IFSA 2003), American Nuclear Soc. Inc., La Grange Park, IL, 268-271 (2004).

C. Joshi, "Review of Beam Driven Plasma Wakefield Accelerators," AIP Conference Proceedings of the AAC Workshop, No. 737, ed by V. Yakimenko, Stony Brook, NY, June 21-26, 2004, pp. 3-10.

J. Rosenzweig, N. Bodzin, P. Frigola, C. Joshi, P. Musumeci, C. Pellegrini, S. Tochitsky and G. Travish, "A Helical Undulator Wave-guide Inverse Free-Electron Laser, "AIP Conference Proceedings of the AAC Workshop, No. 737, ed by V. Yakimenko, Stony Brook, NY, June 21-26, 2004, pp. 858-864.

S. Deng, P. Muggli, C. D. Barnes, C. E. Clayton, F. J. Decker, R.A. Fonseca, C. Huang, M. J. Hogan, R. Iverson, D. K. Johnson, C. Joshi, T. Katsouleas, P. Krejcik, W. Lu, K. A. Marsh, W. B. Mori, C. O'Connell, E. Oz, R. Siemann, F. Tsung, D. Walz, M. M. Zhou, "Modeling of E164X Experiment" AIP Conference Proceedings of the AAC Workshop, No. 737, ed. by V. Yakimenko, Stony Brook, NY, June 21-26, 2004, pp. 936-941.

C. Sung, S. Ya. Tochitsky and C. Joshi, "Guiding of 10 mm laser pulses by use of hollow waveguides," AIP Conference Proceedings of the AAC Workshop, No. 737, ed. by V. Yakimenko, Stony Brook, NY, June 21-26, 2004, pp. 512-518.

C. Sung, S. Ya. Tochitsky, P. Musumeci, J. Ralph, J. B. Rosenzweig, C. Pellegrini, and C. Joshi, "Study of a THz IFEL prebuncher for laser-plasma accelerators," AIP Conference Proceedings of the AAC Workshop, No. 737, ed. by V. Yakimenko, Stony Brook, NY, June 21-26, 2004, pp. 922-928.

E. Oz, C. D. Barnes, C. E. Clayton, F. J. Decker, S. Deng, M. J. Hogan, C. Huang, R. Iverson, D. K. Johnson, C. Joshi, T. Katsouleas, P. Krejcik, W. Lu, K. A. Marsh, P. Muggli, C. O'Connell, D. Walz, "Optical Diagnostics for Plasma Wakefield Accelerators," AIP Conference Proceedings of the AAC Workshop, No. 737, ed. by V. Yakimenko, Stony Brook, NY, June 21-26, 2004, pp. 708-714.

C. Huang, W. Lu, M. M. Zhou, V. K. Decyk, W. B. Mori, E. Oz, C. D. Barnes, C. E. Clayton, F. J. Decker, S. Deng, M. J. Hogan, R. Iverson, D. K. Johnson, C. Joshi, T. Katsouleas, P. Krejcik, K. A. Marsh, P.Muggli, C. O'Connell, D. Walz, "Simulation of a 50GeV PWFA Stage," AIP Conference Proceedings of the AAC Workshop, No. 737, ed. by V. Yakimenko, Stony Brook, NY, June 21-26, 2004, pp. 433-439.

W. Lu, C. Huang, M. M. Zhou, C. E. Clayton, D. K. Johnson, C. Joshi, K. A. Marsh, W. B. Mori, S. Deng, E. Oz, T. Katsouleas, C. D. Barnes, C. O'Connell, F. J. Decker, P. Emma, R. Iverson, P. Krejcik, D. Walz, "Linear Wakefield Expression for Bi-Gaussian Drive Bunches," AIP Conference Proceedings of the AAC Workshop, No. 737, ed. by V. Yakimenko, Stony Brook, NY, June 21-26, 2004, pp. 894-900.

S. Ya. Tochitsky, C. E. Clayton, K. A. Marsh, J. B. Rosenzweig, C. Pellegrini, and C. Joshi, "UCLA Neptune Facility for Advanced Accelerator Studies," AIP Conference Proceedings of the AAC Workshop, No. 737, ed. by V. Yakimenko, Stony Brook, NY, June 21-26, 2004, pp. 663-669.

P. Musumeci, S. Ya. Tochisky, S. Boucher, A. Doyuran, R. J. England, C. Joshi, C. Pellegrini, J. Ralph, J. B. Rosenzweig, C. Sung, S. Tolmachev, G. Travish, A. Varfolomeev, A. Varfolomeev Jr., T. Yarovoi and R. Yoder, "Very High Energy Gain at the Neptune Inverse Free Electron Laser Experiment," AIP Conference Proceedings of the AAC Workshop, No. 737, ed. by V. Yakimenko, Stony Brook, NY, June 21-26, 2004, pp. 160-170.

P. Musumeci,S. Ya. Tochitsky, S. Boucher, A. Doyuran, R. J. England, C. Joshi, C. Pellegrini, J. Ralph, J. B. Rosenzweig, C. Sung, G. Travish, R. Yoder, A. Varfolomeev, S. Tolmachev, A. Varfolomeev Jr., T. Yarovoi, "Acceleration of Electron in a Diffraction Dominated IFEL," Proceedings of the FEL 2004, Trieste, Italy, Aug. 29-Sept. 3, 2004, pp. 644-647.

2003

Journals

B. E. Blue, C. E. Clayton, C. L. O'Connell, F.-J. Decker, M. J. Hogan, C. Huang, R. Iverson, C. Joshi, T. C. Katsouleas, W. Lu, K. A. Marsh, W. B. Mori, P. Muggli, R. Siemann, and D. Walz, "Plasma-Wakefield Acceleration of an Intense Positron Beam," Physical Review Letters Vol. 90, 214801:1-4 (2003).

C. Joshi and T. Katsouleas, "Plasma Accelerators at the Energy Frontier and on Tabletops," Physics Today, June 2003, p. 47.

Z. Najmudin, K. Krushelnick, E. L. Clark, S. P. D. Mangles, B. Walton, A. E. Dangor, S. Fritzler, V. Malka, E. Lefebvre, D. Gordon, and C. Joshi, "Self-Modulated Wakefield and Forced Laser Wakefield Acceleration of Electrons," Physics of Plasmas, Vol. 10, No. 5, pp. 2071-2077 (2003).

Catalin V. Filip, Sergei Ya. Tochitsky, Ritesh Narang, Christopher E. Clayton, Kenneth A. Marsh, and Chandrashekhar J. Joshi, "Collinear Thomson scattering diagnostic system for the detection of relativistic waves in low-density plasmas," Review of Sci. Instr., Vol. 74, No. 7, 3576-3578, July (2003).

C. G. R. Geddes, R. K. Kirkwood, S. H. Glenzer, K. Estabrook, B. I. Cohen, P. E. Young, C. Joshi, and K. B. Wharton, "Observation of ion wave decay products of Langmuir waves generated by stimulated Raman scattering in ignition scale plasmas," Physics of Plasmas, Vol. 10, No. 8, pp. 3422-3425, August (2003).

S. Deng, C. D. Barnes, C. E. O'Connell, F.J. Decker, O. Erdem, R.A. Fonseca, C. Huang, M.J. Hogan, R. Iverson, K.K. Johnson, C. Joshi, T. Katsouleas, P. Krejcik, W. Lu, K. A. Marsh, W. B. Mori, P. Muggli, F. Tsung, "Plasma wakefield acceleration in self-ionized gas or plasmas," Physical Review E, Vol. 68, 47401 October (2003).

B. E. Blue, C. E. Clayton, C. L. O'Connell, F.-J. Decker, M. J. Hogan, C. Huang, R. Iverson, C. Joshi, T. C. Katsouleas, K. A. Marsh, W. B. Mori, and D. Walz, "Parametric Exploration of Intense Positron Beam-Plasma Interactions," Laser and Particle Beams, Vol. 21, pp. 495-501(2003).

Conferences

S. Deng, C. D. Barnes, C. E. Clayton, C. O'Connell, F.J. Decker, P. Emma, O. Erdem, C. Huang, M. J. Hogan, R. Iverson, D. K. Johnson, C. Joshi, T. Katsouleas, P. Krejcik, W. Lu, K. A. Marsh, W. B. Mori, P. Muggli, R. H. Siemann, D. Walz, "Modeling of Beam-Ionized Sources for Plasma Accelerators," Proceedings of the 2003 Particle Accelerator Conference, pp. 1933-1935, (2003).

K. A. Marsh, B. E. Blue, C. E. Clayton, C. Joshi, W. B. Mori, F.-J. Decker, M. J. Hogan, R. Iverson, C. O'Connell, P. Raimondi, R. Siemann, D. Walz, T. C. Katsouleas, P. Muggli, "Positron Beam Propagation in a Meter Long Plasma Channel," Proceedings of the 2003 Particle Accelerator Conference, pp. 731-733, (2003).

C. D. Barnes, C. O'Connell, F-J. Decker, P. Emma, M. J. Hogan, P. Iverson, P. Krejcik. R. H. Siemann, D. Walz, B. Blue, C. E. Clayton, C. Huang, D. Johnson, C. Joshi, K. A. Marsh, W. B. Mori, S. Deng, T. Katsouleas, P. Muggli, E. Oz, "Improvements for the Third Generation Plasma Wakefield Experiment E-164 at SLAC," Proceedings of the 2003 Particle Accelerator Conference, pp. 1530-1532, (2003).

B. E. Blue, P. Muggli, M. J. Hogan, C. L. O'Connell, C. Clayton, F-J. Decker, C. Huang, R. Iverson, K. A. Marsh, W. B. Mori, D. Walz, T. C. Katsouleas, R. Siemann, C. Joshi, "Plasma Wakefield Acceleration of an Intense Positron Beam: Correlation Between Time-Resolved and Time-Integrated Energy Diagnostics," Proceedings of the 2003 Particle Accelerator Conference, pp. 1864-1866, (2003).

S. Ya. Tochitsky, R. Narang, C. V. Filip, P. Musumeci, C. E. Clayton, R. Yoder, K. A. Marsh, J. B. Rosenweig, C. Pellegrini, and C. Joshi, "Acceleration of Injected Electrons in a Laser Beatwave Experiment," Proceedings of the 2003 Particle Accelerator Conference, pp. 1873-1875, (2003).

R. J. Noble, E. R. Colby, D. T. Palmer, R. H. Siemann, D. Walz, R. Byer, C. Joshi, W. Mori, J. Rosenzweig, T. Katsouleas, "The ORION Facility," Proceedings of the 2003 Particle Accelerator Conference, pp. 1858-1860, (2003).

2002

Journals

S. Lee, T. Katsouleas, P. Muggli, W. B. Mori, C. Joshi, R. Kemker, E. S. Dodd, C. E. Clayton, K. A. Marsh, B. Blue, S. Wang, R. Assmann, F.-J. Decker, M. Hogan, R. Iverson, and D. Walz, "Energy doubler for a linear collider," Phys. Rev. Special Topics – Accelerators and Beams, Vol. 5, pp. 011001-1-4 (2002).

Shuoqin Wang, C. E. Clayton, B. E. Blue, E. S. Dodd, K. A. Marsh, W. B. Mori, C. Joshi, S. Lee, P. Muggli, T. Katsouleas, F.J. Decker, M. J. Hogan, R. H. Iverson, P. Raimondi, D. Walz, R. Siemann, and R. Assmann, "X-Ray Emission from Betatron Motion in a Plasma Wiggler," Phys. Rev. Lett., Vol. 88, No. 13, pp. 135004-1-4, April 2002,

C. E. Clayton, B. E. Blue, E. S. Dodd, C. Joshi, K. A. Marsh, W. B. Mori, S. Wang, P. Catravas, S. Chattopadhyay, E. Esarey, W. P. Leemans, R. Assmann, F.-J. Decker, M. J. Hogan, R. Iverson, P. Raimondi, R. H. Siemann, D. Walz, T. Katsouleas, S. Lee, and P. Muggli, "Transverse Envelope Dynamics of a 28.5-GeV Electron Beam in a Long Plasma," Phys. Rev. Lett., Vol. 88, No. 15, pp. 154801-1-4, April 2002

C. Joshi, B. Blue, C. E. Clayton, E. Dodd, C. Huang, K. A. Marsh, W. B. Mori, S. Wang, M. J. Hogan, C. O'Connell, R. Siemann, D. Watz, P. Muggli, T. Katsouleas, and S. Lee, "High energy density plasma science with an ultrarelativistic electron beam," Physics of Plasmas, Vol. 9, No. 5, pp. 1845-1855, May 2002.

Catalin V. Filip, Ritesh Narang, Sergei Ya. Tochitsky, Christopher E. Clayton, and Chandrashekhar Joshi, "Optical Kerr switching technique for the production of a picosecond, multiwavelength CO₂ laser pulse," Applied Optics, Vol. 41, No. 18, pp. 3743-3747, June 2002.

C. O'Connell, F-J. Decker, M. J. Hogan, R. Iverson, P. Raimondi, R. H. Siemann, D. Walz, B. Blue, C. E. Clayton, C. Joshi, K. A. Marsh, W. B. Mori, S. Wang, T. Katsouleas, S. Lee, and P. Muggli, "Dynamic focusing of an electron beam through a long plasma," Phys. Rev. Special Topics-Accelerators and Beams, Vol. 5, 121301:1-8 (2002)

M. Hogan, C. E. Clayton, C. Huang, P. Muggli, S. Wang, B. E. Blue, D. Walz, K. A. Marsh, C. L. O'Connell, S. Lee, R. Iverson, F.-J. Decker, P. Raimondi, W. B. Mori, T. C. Katsouleas, C. Joshi, and R. H. Siemann, "UltraRelativistic-Positron-Beam Transport through Meter-Scale Plasmas," Physical Review Letters, Vol. 90, 205002:1-4 (2003).

Conferences

S. Deng, T. Katsouleas, S. Lee, P. Muggli, W. B. Mori, R. Hemker, C. Ren, C. Huang, E. Dodd, B. E. Blue, C. E. Clayton, C. Joshi, S. Wang, F.-J. Decker, M. J. Hogan, R. H. Iverson, C. O'Connell, P. Raimondi, D. Walz, "3-D Simulations of Plasma Wakefield Acceleration with Non-Idealized Plasmas and Beams," Advanced Accelerator Concepts, 10^th Workshop, Mandalay Beach, CA, edited by C. E. Clayton and P. Muggli, (AIP Conf. Proc. No. 647, 2002) pp. 592-599.

S. Ya Tochitsky, P. Musumeci, C. E. Clayton, C. Pellegrini, J. B. Rosenzweig, and C. Joshi, "Bunched Beam Injection in a Plasma Accelerator," Advanced Accelerator Concepts, 10^th Workshop, Mandalay Beach, CA, edited by C. E. Clayton and P. Muggli, (AIP Conf. Proc. No. 647, 2002) pp. 786-795.

C. V. Filip, S. Ya. Tochitsky, R. Narang, C. E. Clayton, K. A. Marsh, and C. Joshi, "Interpretation of Resonant and Non-Resonant Beat-Wave Excitation: Experiments and Simulations," Advanced Accelerator Concepts, 10^th Workshop, Mandalay Beach, CA, edited by C. E. Clayton and P. Muggli, (AIP Conf. Proc. No. 647, 2002) pp. 770-785.

S. Deng, F. Tsung, S. Lee, Wei Lu, W. B. Mori, T. Katsouleas, P. Muggli, B. E. Blue, C. E. Clayton, C. O'Connell, E. Dodd, F.-J. Decker, C. Huang, M. J. Hogan, R. Hemker, R. H. Iverson, C. Joshi, C. Ren, P. Raimondi, S. Wang, D. Walz, "Modeling of Ionization Physics with the PIC Code OSIRIS," Advanced Accelerator Concepts, 10^th Workshop, Mandalay Beach, CA, edited by C. E. Clayton and P. Muggli, (AIP Conf. Proc. No. 647, 2002) pp. 219-223

R. Narang, C. E. Clayton, C. V. Filip. S. Ya. Tochitsky, D. F. Gordon, C. Joshi, W. B. Mori, "PIC Simulations of Plasma Beat-Wave Acceleration Experiments at UCLA," Advanced Accelerator Concepts, 10^th Workshop, Mandalay Beach, CA, edited by C. E. Clayton and P. Muggli, (AIP Conf. Proc. No. 647, 2002) pp. 213-218.

M.J. Hogan, C. D. Barnes, C. E. Clayton, C. O'Connell, F.J. Decker, S. Deng, P. Emma, C. Huang, R. Iverson, D. K. Johnson, C. Joshi, T. Katsouleas, P. Krejcik, W. Lu, K. A. Marsh, W. B. Mori, P. Muggli, R. H. Siemann, D. Walz, "Acceleration and Focusing of Electrons and Positrons using a 30 GeV Drive Beam," Advanced Accelerator Concepts, 10^th Workshop, Mandalay Beach, CA, edited by C. E. Clayton and P. Muggli, (AIP Conf. Proc. No. 647, 2002) pp. 3-10.

C. Guang, E. Oz, P. Muggli, R. Narang, C.V. Filip, S. Tochitsky, C.E. Clayton, K.A. Marsh, W.B. Mori, C. Joshi, R.B. Yoder, J. Rosenzweig, and T.C. Katsouleas, "A High Power THz Radiation Source," Conf. Digest, Int. Conf. on Infrared and mm Waves 2002, pp. 117-18 (22-26 September 2002).

2001

Journals

S. Ya. Tochitsky, C. Filip, R. Narang, C. E. Clayton, K. A. Marsh, and C. Joshi, "Efficient Shortening of Self-Chirped Picosecond Pulses in a High-Power CO₂ Amplifier," Optics Letters, Vol. 26, No. 11, pp. 813-815 (2001).

P. Catravas, S. Chattopadhyay, E. Esarey, W. P. Leemans, R. Assmann, F.-J. Decker, R. Iverson, M. J. Hogan, R. H.Siemann, D. Walz, D. Whittum, B. Blue, C. Clayton, C. Joshi, K. Marsh, W. B. Mori, S. Wang, T. Katsouleas, S. Lee, P. Muggli, "Measurements of radiation near an atomic spectral line from the interaction of a 30 GeV electron beam and a long plasma," Phys.Rev. E. 64, 046502 (2001).

P. Muggli, S. Lee, T. Katsouleas, R. Assmann, F. J. Decker, M. J. Hogan, R. Iverson, P. Raimondi, R. H. Siemann, D. Walz, B. Blue, C. E. Clayton, E. Dodd, R. A. Fonseca, R. Hemker, C. Joshi, K. A. Marsh, W. B. Mori, S. Wang, "Refraction of a particle beam," Nature, Vol. 411, p. 43, May (2001).

J. R. Hoffman, P. Muggli, R. Liou, M. Gundersen, J. Yampolsky, and T. Katsouleas, C. Joshi, and W. B. Mori, "High Power Radiation from Ionization Fronts in a Static Electron Field in a Waveguide," Physical Review E, Vol. 90, No. 3, pp. 1115-1123 (August 2001).

P. Muggli, S. Lee, T. Katsouleas, R. Assmann, F.-J. Decker, M. J. Hogan, R. Iverson, P. Raimondi, R. H. Siemann, D. Walz, B. Blue, C. E. Clayton, E. Dodd, R. A. Fonseca, R. Hemker, C. Joshi, K. A. Marsh, W. B. Mori, and S. Wang, "Collective refraction of a beam of electrons at a plasma-gas interface," Phys. Rev. Special Topics – Accelerators and Beams, Vol. 4, pp. 091301-3 (2001).

Conferences

C. Joshi, "A Possible Plasma Source for a SLAC Afterburner," AIP Conf. Proceedings No. 569, Advanced Accelerator Concepts, edited by Patrick L. Colestock and Sandra Kelley, pp. 340-341 , (2001).

C. Joshi, "John Dawson's Advanced Accelerator Years," AIP Conf. Proceedings No. 569, Advanced Accelerator Concepts, edited by Patrick L. Colestock and Sandra Kelley, pp. 26-30, (2001).

C. Joshi, "Laser-Plasma Accelerators: A Status Report," AIP Conf. Proceedings No. 369, Advanced Accelerator Concepts, edited by Patrick L. Colestock and Sandra Kelley, pp. 85-96 (2001).

D.T. Palmer, E. Colby, M. Hogan, R. Noble, R.H. Siemann, J. Spencer , D. Walz, C. Joshi, W. Mori, J.B. Rosenzweig, T. Katsouleas, P. Muggli and R. Byer, "ORION: an Advanced Accelerator Facility at SLAC," IEEE Proc. of the 2001 Particle Accelerator Conference , Vol. 3, pp. 2251-2253 (2001).

Shuoqin Wang, C. E. Clayton, B. E. Blue, E. S. Dodd, C-H. Huang, K. A. Marsh, W. B. Mori, C. Joshi, S. Lee, P. Muggli, T. Katsouleas, F.-J. Decker, M. J. Hogan, R. H. Iverson, P. Riamondi, D. Walz, R. Siemann, R. Assmann, "Observation of Spontaneous Emitted X-Ray Betatron Radiation in Beam-Plasma Interactions," Proceedings of the Particle Accelerator Conference, Chicago, IL, June 18-22, 2001, pp. 3999-4001.

R. Narang, C. Filip, S. Ya. Tochitsky, D. Gordon, C. E. Clayton, K. A. Marsh, C. Joshi "Characteristics of Plasmas Produced by Double Beat Wave Interaction in the Neptune Facility at UCLA," Proc. Of the Particle Accelerator Conference, Chicago, IL, June 18-22, 2001, pp. 3996-3998.

B. Blue, C. E. Clayton, E. Dodd, K. Marsh, W. B. Mori, S. Wang, C. Joshi, R. Assmann, F-J. Decker, M. J. Hogan, R. H. Iverson, P. Raimondi, D. Walz, R. H. Siemann, S. Lee, P. Muggli and T. Katsouleas, "Test of the Electron Hose Instability in the E157 Experiment," Proc. Of the Particle Accelerator Conference, Chicago, IL, June 18-22. 2001, pp. 4002-4004.

J. R. Hoffman, et al., "On the Possibility of a 10 Density, 1 Meter Long Plasma for Accelerator Applications," Proc. Of the Particle Accelerator Conference, Chicago, IL, June 17-22, 2001, 3 pp.

P. Muggli, M. J. Hogan, B. E. Blue, C. O'Connell, R. H. Siemann, D. Walz, R. Assmann, C. E. Clayton, F.-J. Decker, E. S. Dodd, R. H. Iverson, C. Joshi, T. C. Katsouleas, S. Lee, K. A. Marsh, W. B. Mori, P. Raimondi, S. Wang, "Status of the Plasma Wakefield Acceleration Experiment at the Stanford Linear Accelerator Center," Proc. Of the Particle Accelerator Conference, Chicago, IL, June 17-22, 2001, pp. 122-125.

S. Ya Tochitsky, C. Filip, R. Narang, C. E. Clayton, K. A. Marsh and C. Joshi, "Overview of NEPTUNE Facility," Proc. Of the APS/DPF/DPB Summer Study on the Future of Particle Physics (Snowmass 2001), Snowmass Village, CO, June 30-July 21, 2001, ed., R. Davidson and C. Quigg, SNOWMASS 2001-T802, 2 pp.

P. Sprangle, C. Joshi, "Final Report on the Advanced Acceleration Techniques Working Group, T8," Proc. Of the APS/DPF/DPB Summer Study on the Future of Particle Physics (Snowmass 2001), Snowmass Village, CO, June 30-July 21, 2001, ed., R. Davidson and C. Quigg, SNOWMASS T8001. 14 pp.

P. Musumeci, S. Ya. Tochitsky, C. E. Clayton, C. Joshi, C. Pellegrini, J. B. Rosenzweig, "A THz Radiation Driven IFEL as a Phaselocked Prebuncher for a Plasma Beat-Wave Accelerator," Proc. of International Conference on LASERS 2001, Tucson, AZ, December 3-7, 2001, pp. 41-48.

P. Muggli, M. J. Hogan, B. E. Blue, C. L. O'Connell, K. A. Marsh, D. Walz, R. Iverson, F.-J. Decker, P. Raimondi, C. E. Clayton, S. Wang, S. Lee, E. S. Dodd, C. Joshi, C. Huang, T. C. Katsouleas, W. B. Mori, "Dynamics of 28.5 GeV Electron and Positron Beams in a Meter-Long Plasma," Proc. Of the International Conference on LASERS 2001, Tucson, AZ, December 3-7, 2001, pp. 34-40.

2000

Journals

H. Suk, C. E. Clayton, C. Joshi, T C. Katsouleas, P. Muggli, R. Narang, C. Pellegrini, J. B. Rosenzweig, "Plasma Source Test and Simulation Results for the Underdense Plasma Lens Experiment at the UCLA Neptune Laboratory," IEEE Tran. On Plasma Sci., Vol. 28, No. 1, pp. 271-277, February (2000).

M. J. Hogan, C. E. Clayton, P. Muggli, R. Siemann, and C. Joshi, "E-157: A 1.4 Meter-long Plasma Wakefield Aceleration Experiment Using the 30 GeV Electron Beam from the SLAC Linac," Physics of Plasmas, Vol. 7, pp. 2241-248, (2000).

T. Katsouleas, W. B. Mori, E. Dodd, S. Lee, R. Hemker, C. Clayton, C. Joshi, E. Esarey, "Laser steering of particle beams: refraction and reflection of particle beams," Nucl. Instr. And Meth. In Phys. Research A, Vol. 455, pp. 161-165 (2000).

Y. Sakawa and C. Joshi, "Growth and nonlinear evolution of the modified Simon-Hoh instability in an electron beam-produced plasma," Physics of Plasmas, Vol. 7, pp. 1774-1780 (2000).

Z. Najmudin, A. E. Dangor, A. Modena, M. R. Salvati, C. E. Clayton, C. N. Danson, Daniel F. Gordon, C. Joshi, K. A. Marsh, V. Malka, Patrick Muggli, , D. Neely, and F. N. Walsh, "Investigation of a Channeling High-Intensity Laser Beam in Underdense Plasma," IEEE Trans. on Plasma Sci. Vol. 28, No. 4, pp. 1057-1070, August 2000.

Z. Najmudin, R. Allott, F. Amiranoff, E. L. Clark, C. N. Danson, Daniel F. Gordon, C. Joshi, K. Krushelnick, V. Malka, D. Neely, M. R. Salvati, M.I.K. Santala, M. Tatarakis, and A. E. Dangor, "Measurement of Forward Raman Scattering and Electron Acceleration from High Intensity Laser-Plasma Interactions at 527 nm," IEEE Trans. on Plasma Sci., Vol. 28, No. 4, pp. 1084-1089, August 2000.

D. F. Gordon, W. B. Mori, C. Joshi, "On the Possibility of Electromagnetically Induced Transparency in a Plasma. I. Infinite Plasma," Physics of Plasmas, Vol. 7, No. 8, pp. 3145-3155, August 2000.

D. F. Gordon, W. B. Mori, C. Joshi, "On the Possibility of Electromagnetically Induced Transparency in a Plasma, II. Bounded Plasma," Physics of Plasmas, Vol. 7, No. 8, pp. 3156-3166, August 2000.

Conferences

P. Muggli, M. J. Hogan, C. E. Clayton, S. Wang, R. H. Siemann, B. E. Blue, S. Lee, P. Raimondi, R. H. Iverson, D. Walz, R. Assmann, K. A. Marsh, F.-J. Decker, E. S. Dodd, C. Joshi, T. Katsouleas, and W. B. Mori, "E-157: A Plasma Wakefield Acceleration Experiment," LINAC 2000 Proceedings, August 21-25, 2000, Monterey, CA, 5 pp.

S. Ya. Tochitsky, C. Filip, R. Narang, C. E. Clayton, K. A. Marsh, and C. Joshi, "Present Status and Future Prospects of High-Power CO₂ Laser Research," Proceedings of the International Conference LASERS'00, Albuquerque, NM, December (2000), 8 pp.

1999

Journals

T. Katsouleas, C. Joshi, W. B. Mori, "Plasma Physics with GeV Electron Beams," Comments on Plasma Physics and Controlled Fusion, Comments on Modern Physics, Vol. 1(3), Part C., pp. 99-109, (1999).

K. B. Wharton, C. Joshi, R. K. Kirkwood, S. H. Glenzer, K. G. Estabrook, B. B. Afeyan, B. I. Cohen and J. D. Moody, "Energy Transfer Between Identical-Frequency Laser Beams in Flowing Plasmas," Physics of Plasmas, Vol. 6, No. 5, pp. 2144-2149, May (1999).

D. Bernard, F. Amiranoff, E. Esarey, W. Leemans, and C. Joshi, "Alternative intrepretation of Nucl. Instr. And Meth. In Phys. Res. A 410 (1998 357 (H. Dewa et al.))," Nucl. Instr. And Meth. In Phys. Res. A, Vol. 432, pp. 227-231 (1999).

P. Muggli, K. A. Marsh, S. Wang, C. E. Clayton, S. Lee, T. C. Katsouleas, and C. Joshi, "Photo-Ionized Lithium Source for Plasma Accelerator Applications," IEEE Trans. On Plasma Science, Vol. 27, No. 3, 791-799, June 1999.

R.K. Kirkwood, D. S. Montgomery, B. B. Afeyan, J. D. Moody, B. J. MacGowan, C. Joshi, K. B. Wharton, S. H. Glenzer, E. A. Williams, P. E. Young, W. L. Kruer, K. G. Estabrook, and R. L. Berger, "Observation of the Nonlinear Saturation of Langmuir Waves Driven by Ponderomotive Force in a Large Scale Plasma," Physical Review Letters, Vol. 83, 2965-2968, October (1999).

Y. H. Xu, F. Del Monte, J. D. Mackenzie, K. Namjoshi, P. Muggli, and C. Joshi, "Nanocomposite of semiconducting ferroelectric antimony sulphoiodide dots-doped glasses," Ferroelectrics, Vol. 230: (1-4), pp. 313-322 (1999).

S. Ya. Tochitsky, R. Narang, C. Filip, C. E. Clayton, K. Marsh, and C. Joshi, "Generation of 160-ps terawatt-power CO₂ laser pulses," Optics Letters, Vol. 24, No. 23, pp. 1717-1719, December (1999).

Conferences

P. Muggli, J. Yoshii, T. C. Katsouleas, C. E. Clayton, and C. Joshi, "Cerenkov Radiation from a Magnetized Plasma, a Diagnostic for PBWA Experiments," proceedings of the PAC Conference, New York City, NY, March 28- April 2, 1999.

P. Muggli, J. R. Hoffman, K. A. Marsh, S. Wang, C. E. Clayton, T. C. Katsouleas, and C. Joshi, "Lithium Plasma Sources for Acceleration and Focusing of Ultra-Relativistic Electron Beams," proceedings of the PAC Conference, New York City, NY, March 28- April 2, 1999.

H. Suk, C. E. Clayton, G. Hairapetian, C. Joshi, M. Loh, P. Muggli, R. Narang, C. Pellegrini, and J. B. Rosenzweig, "Underdense Plasma Lens Experiment at the UCLA Neptune Laboratory," proceedings of the PAC Conference, New York City, NY, March 28- April 2, 1999.

D. Gordon, W. B. Mori, and C. Joshi, "Electromagnetically Induced Transparency (EIT) in a Bounded Plasma and its Relation to Beat Wave Physics," proceedings of the PAC Conference, New York City, NY, March 28- April 2, 1999.

S. Anderson, J. Rosenzweig, K. Bishofberger, X. Ding, T. Holden, A. Murokh, C. Pellegrini, H. Suk, A. Tremaine, C. Clayton, K. Marsh, and P. Muggli, " Commissioning of the Neptune Photoinjector," proceedings of the PAC Conference, New York City, NY, March 28- April 2, 1999.

R. Assmann, P. Catravas, S. Chattopadhyay, W. P. Leemans, P. Volfbeyn, P. Chen, F-J. Decker, R. Iverson, P. Raimondi, M. Hogan, T. Rauben Heimer, S. Rokni, R. H. Siemann, D. Walz, D. Whittum, C. Clayton, C. Joshi, K. Marsh, W. Mori, G. Wong, T. Katsouleas, S. Lee, and P. Muggli, "Experimental Progress Towards E-157: A GeV Plasma Accelerator," proceedings of the PAC Conference, New York City, NY, March 28- April 2, 1999.

S. DiMaggio, S. Archambault, P. Catravas, P. Volfbeyn, W. P. Leemans, K. Marsh, P. Muggli, S. Wang, and C. Joshi, "Development of One Meter-Long Lithium Plasma Source and Excimer Mode Reduction for Plasma Wakefield Applications," proceedings of the PAC Conference, New York City, NY, March 28- April 2, 1999.

1998

Journals

P. Muggli, R. Liou, J. Hoffman, and T. Katsouleas, and C. Joshi, "Generation of Ultra-Short, Discrete Spectrum Microwave Pulses Using the DC to AC Radiation Converter," Applied Physics Letters 72 (1), 19-21 January 5, (1998).

D. Gordon, C. E. Clayton, T. Katsouleas, W. B. Mori, and C. Joshi, "Microbunching of Relativistic Electrons using a Two-frequency Laser," Phys. Rev. E. 57, 1035-1041, January (1998).

D. Gordon, K.C. Tzeng, C.E. Clayton, A.E. Dangor, V. Malka, K.A. Marsh_,A. Modena, W.B. Mori, P. Muggli, Z. Najmudin, and C. Joshi, "Observation of Electron Energies Beyond the Linear Dephasing Limit from a Laser Excited Relativistic Plasma Wave," Phys. Rev. Lett. 80, 2133-2136, March (1998).

C. E. Clayton, D. Gordon, K. A. Marsh, P. Muggli, C. Joshi, V. Malka, Z. Najmudin, A. Modena, A. E. Dangor, D. Neely and C. Danson, "Plasma Wave Generation in a Self-Focussed Channel of a Relativistically Intense Pulse," Phys. Rev. Lett. 81, 100, July (1998).

R. Assmann, P. Chen, F. J. Decker, R. Iverson, P. Raimondi, T. Raubenheimer, S. Rokni, R. Siemann, D. Walz, D. Whittum, S. Chattopadhyay, W. Leemans, T. Katsouleas, S. Lee, C. Clayton, C. Joshi, K. Marsh, W. Mori, and G. Wang, "Proposal for a One GeV Plasma Wakefield Acceleration Experiment at SLAC," Nuclear Instruments and Methods in Physics Research A 410, 396-406 (1998).

J. Rosenzweig, S. Anderson, K. Bishofberger, X. Ding, A. Murokh, C. Pellegrini, H. Suk, A. Tremaine, C. Clayton, C. Joshi, K. Marsh, P. Muggli, "The Neptune photoinjector," Nuclear Instruments and Methods in Physics Research A 410, 437-451 (1998).

P. Muggli, R. Liou, C. H. Lai, J. Hoffman, C. Joshi and T. Katsouleas, "Generation of Microwave Pulses from the Static Electric Field of a Capacitor Array by an Underdense, Relativistic Ionization Front." Physics of Plasmas 5, 2112, May (1998).

K. Wharton, S. Hatchett, S. Wilks, M. Key, J. Moody, V. Yanvosksy, A. A. Offenberger, B. Hammel and M. Perry, and C. Joshi "Experimental Measurements of Hot Electrons Generated by Ultra-Intense (>10¹⁹ W/cm²) Laser-Plasma Interactions on Solid Density Targets," Physical Review Letters 81, pp. 822-825, July (1998).

K. B. Wharton, C. Joshi, R. K. Kirkwood, S. H. Glenzer, K. G. Estabrook, B. B. Afeyan, B. I. Cohen and J. D. Moody, "Observation of Energy Transfer Between Identical-Frequency Laser Beams in Flowing Plasmas." Physical Review Letters 81, pp. 2248-2252, September (1998).

C. E. Clayton, C. Joshi, K. A. Marsh, C. Pellegrini and J. Rosenzweig, "Second Generation Beatwave Experiments at UCLA," Nuclear Instruments and Methods in Physics Research A 410, 378-387 (1998).

Conferences

P. Muggli, K. A. Marsh, S. Wang, C. E. Clayton, T. C. Katsouleas, and C. Joshi, "Meter Long, Homogeneous Plasma Source for Advanced Accelerator Applications," 8^th Workshop on Advanced Accelerator Concepts Proceedings, Baltimore, MD, July 5-11, 1998.

H. Suk, C. E. Clayton, R. Narang, P. Muggli, J. Rosenzweig, C. Pellegrini, and C. Joshi, "Test Results of the Plasma Source for Underdense Plasma Lens Experiments at the UCLA Neptune Lab," 8^th Workshop on Advanced Accelerator Concepts Proceedings, Baltimore, MD, July 5-11, 1998.

J. R. Hoffman, P. Muggli, T. C. Katsouleas, and C. Joshi, "Photon Acceleration-Based Radiation Sources," 8^th Workshop on Advanced Accelerator Concepts Proceedings, Baltimore, MD, July 5-11, 1998.

P. Muggli, K. A. Marsh, S. Wang, C. E. Clayton, S. Lee, T. C. Katsouleas, and C. Joshi, "Plasma Sources for Second Generation Wake Field and Beat Wave Experiments," LASERS'98 proceedings, Tucson, Arizona, December 7-11, 1998.

1997

Journals

A. K. Lal, K. A. Marsh, C. E. Clayton, C. Joshi, C. J. McKinstrie, J. S. Li, and T. W. Johnston, "Transient Filamentation of a Laser Beam in a Thermal Force Dominated Plasma," Phys. Rev. Lett. 78, 670 (1997).

C. Joshi, "Laser-Matter Interactions at Ultrahigh Intensities," McGraw-Hill Yearbook of Science & Technology, pp. 262-265 (1997).

A. Lal, D. Gordon, K. Marsh, K. Wharton, C. Clayton and C. Joshi, "Exact forward scattering of a CO₂ laser beam from a relativistic plasma wave by time resolved frequency mixing in AgGaS₂," Rev. Sci. Instrum. 68 (1), 690-693, January (1997).

D. Gordon, A. Lal, K. Wharton, C. E. Clayton, and C. Joshi, "2D Cherenkov Emission Array for Studies of Relativistic Electron Dynamics in a Laser Plasma ," Rev. Sci. Instrum. 68 (1), 358-360, January (1997).

V. Malka, A. Modena, Z. Najmudin, A. E. Dangor, C. E. Clayton, K. A. Marsh, C. Joshi, C. Danson, D. Neely, F. N. Walsh, "Second harmonic generation and its interaction with relativistic plasma waves driven by forward Raman instability in underdense plasmas," Physics of Plasmas 4 (4), pp. 1127-1131, April 1997.

A. K. Lal, D. Gordon, K. Wharton, C. E. Clayton, K. A. Marsh, W. B. Mori, C. Joshi, M. J. Everett, and T. W. Johnston, "Spatio-temporal dynamics of the resonantly excited relativistic plasma wave driven by a CO₂ laser," Physics of Plasmas 4 (5), pp. 1434-1447, May 1997.

J. Yoshii, C. H. Lai, T. Katsouleas, C. Joshi, and W. B. Mori, "Radiation from Cherenkov Wakes in Magnetized Plasma," Phys. Rev. Lett. 79 (21), 4194-7 (1997).

Conferences

C. Joshi, "Laser Accelerators: Experiments, Computations and Prospects," Proceedings of the PAC Conference, Vancouver, Canada, May 12-16, 1997.

D. Gordon, C. E. Clayton, W. B. Mori, C. Joshi, T. Katsouleas, "Optical Bunching of Relativistic Electrons for Injection into a GeV Plasma Beatwave," Proceedings of the PAC Conference, Vancouver, Canada, May 12-16, 1997.

C. E. Clayton, C. Joshi, K. A. Marsh, C. Pellegrini, and J. Rosenzwieg, "The NEPTUNE Facility for 2nd Generation Advanced Accelerator Experiments," Proceedings of the PAC Conference, Vancouver, Canada, May 12-16, 1997

T. Katsouleas, S. Chattopadhay, W. Leemans, R. W. Assmann, P. Chen, F.J. Decker, S. Heifets, R. Iversen, T. Kotseroglou, S. Rokni, R. H. Siemann, D. Waltz, D. Whittum, C. Clayton, C. Joshi, K. Marsh, and W. Mori, "A Proposal for a 1 GeV Plasma Wakefield Acceleration Experiment at SLAC," Proceedings of the PAC Conference, Vancouver, Canada, May 12-16, 1997.

C. E. Clayton, P. Muggli, D. Gordon, K-C. Tzeng, W. B. Mori, C. Joshi, A. Modena, Z. Najmudin, A. E. Dangor, V. Malka, and D. Neely, "The Observation of Self-Channeling of a Relativistically-Intense Laser Pulse in an Underdense Plasma," LEOS ‘97 Proceedings, San Francisco, CA, November 10-13, 1997.

1996

Journals

P. Muggli, R. Brogle, S. Jou, H. J. Doerr, R. F. Bunshah, and C. Joshi, "Photoemission From Diamond and Fullerene Films for Advanced Accelerator Applications," (Second Generation Plasma Accelerators, Kardamyli, Greece, 26-30 June 1995). IEEE Transactions on Plasma Science, April 1996, vol.24, (no.2): 428-38.

T. Katsouleas, C. Clayton, L. Serafini, C. Pellegrini, C. Joshi, J. Dawson, and P. Castellano, "A Plasma Klystron for Generating Ultra-Short Electron Bunches," (Second Generation Plasma Accelerators, Kardamyli, Greece, 26-30 June 1995). IEEE Transactions on Plasma Science, April 1996, vol.24, (no.2): 443-447.

A. Modena, Z. Najmudin, A. E. Dangor, C. E. Clayton, K. A. Marsh, C. Joshi, V. Malka, C. B. Darrow, and C. Danson, "Observation of Raman Forward Scattering and Electron Acceleration in the Relativistic Regime," (Second Generation Plasma Accelerators, Kardamyli, Greece, 26-30 June 1995). IEEE Transactions on Plasma Science, April 1996, vol.24, (no.2): 289-295.

M. J. Everett, A. Lal, C. E. Clayton, W. B. Mori, C. Joshi, and T. W. Johnston, "Coupling between Electron Plasma Waves in Laser-Plasma Interactions," Physics of Plasmas, part 2, vol. 3, no. 5, pp. 2041-2046, May (1996).

C. H. Lai, R. Liou, T. Katsouleas, P. Muggli, R. Brogle, C. Joshi and W. Mori, "Demonstration of microwave generation from a static field by a relativistic ionization front in a capacitor array," Phys. Rev. Lett. 77, 4764-4767 (1996).

Conferences

C. Joshi, "Second Generation Plasma Beat Wave Accelerator Research at UCLA," Proceedings of the 3rd Meeting of IAPS, Vol. 5, March, 1996, Osaka, Japan, pp. 3-8.

R. Brogle, P. Muggli, and C. Joshi, "Thin Film Photoemission Experiments," AIP Conference Proceedings of the Advanced Accelerator Concept Workskhop, Tahoe, CA, October 1, 1996.

1995

Journals

P. Muggli, R. Brogle, and C. Joshi, "Two-Color Photoemission Using Femtosecond Laser Pulses on Copper," J. Opt. Soc. of Am. B. 12, 553 (1995).

M. J. Everett, A. Lal, D. Gordon, K. Wharton, C. E. Clayton, W. B. Mori, and C. Joshi, "Evolution of Stimulated Raman into Stimulated Compton Scattering of Laser Light via Wave-Breaking of Plasma Waves," Physical Review Letters 74, 1355 (1995).

M. J. Everett, A. Lal, C. E. Clayton, W. B. Mori, and C. Joshi, "Coupling Between High-Frequency Plasma Waves in Laser-Plasma Interactions," Physical Review Letters 74, 2236 (1995).

C. Joshi and P. B. Corkum, "Interactions of Ultra-Intense Laser Light with Matter," Physics Today. p. 36, January (1995).

G. Hairapetian, P. Davis, C. E. Clayton, C. Joshi, C. Pellegrini, and T. Katsouleas, "Transverse Dynamics of a Short, Relativistic Electron Bunch in a Plasma Lens," Physics of Plasmas 2, 2555 (1995).

A. Modena, Z. Najmudin, A. E. Dangor, C. E. Clayton, K. A. Marsh, C. Joshi, V. Malka, C. B. Darrow, C. Danson, D. Neely and F. N. Walsh, "Electron Acceleration From the Breaking of Relativistic Plasma Waves," Nature 377, 606-608 (October, 1995).

C-H. Cheng, Y. Xu, J. D. Mackenzie, P. Muggli, and C. Joshi, "Nonlinear Optical Properties of Epitaxial KNbO3 Thin Films via Sol-Gel Technique," Ceramic Transactions 55, 243-250 (1995).

Conferences

R. Brogle, P. Muggli, P. Davis, G. Hairapetian, and C. Joshi,"Studies of Linear and Nonlinear Photoelectric Emission for Advanced Accelerator Applications," Proceedings of the PAC Conference, Dallas, TX, May 1-5, 1995.

C. E. Clayton, K. A. Marsh, C. Joshi, C. B. Darrow, A. E. Dangor, A. Modena, Z. Najmundin, and V. Malka, "A Broadband Electron Spectrometer and Electron Detectors for Laser Accelerator Experiments," Proceedings of the PAC Conference, Dallas, TX, May 1-5, 1995.

P. Davis, G. Hairapetian, M. Hogan, C. Joshi, M. Lampel, S. Park, C. Pellegrini, J. Rosenzweig, G. Travish and R. Zhang, "The UCLA Compact High Brightness Electron Accelerator," Proceedings of the PAC Conference, Dallas, TX, May 1-5, 1995.

A. Lal, K. Wharton, D. Gordon, M. J. Everett, C. E. Clayton, and C. Joshi, "Measurements of the Beatwave Dynamics in Time and Space," Proceedings of the PAC Conference, Dallas, TX, May 1-5, 1995.

D. Gordon, A. Lal, K. Wharton, C. E. Clayton, M. J. Everett, and C. Joshi, "A Novel Technique for Probing the Transverse Interactions Between an Electron Beam and a Plasma," Proceedings of the PAC Conference, Dallas, TX, May 1-5, 1995.

W. B. Mori, K-C. Tzeng, C. D. Decker, C. E. Clayton, C. Joshi, T. Katsouleas, P. Lai, T. C. Chiou and R. Kinter, "Theory and Simulation of Plasma Accelerators," Proceedings of the PAC Conference, Dallas, TX, May 1-5, 1995.

C. A. Coverdale, C. B. Darrow, C. D. Decker, W. B. Mori, K-C. Tzeng, C. E. Clayton, K. A. Marsh, and C. Joshi, "Electron Acceleration in Relativistic Plasma Waves Generated by a Single Frequency Short-Pulse Laser," Proceedings of the PAC Conference, Dallas, TX, May 1-5, 1995.

C. H. Lai, T. Katsouleas, R. Liou, W. B. Mori, C. Joshi, P. Muggli, R. Brogle, J. Dawson, "Photon Acceleration from Rest to the Speed of Light," Proceedings of the PAC Conference, Dallas, TX, May 1-5, 1995.

T. Katsouleas, J. Yoshii, W. B. Mori, C. Joshi, and C. Clayton, "A Beam Size Monitor Based on Appearance Intensities for Multiple Gas Ionization," Proceedings of the PAC Conference, Dallas, TX, May 1-5, 1995.

R. Zhang, P. Davis, G. Hairapetian, M. Hogan, C. Joshi, M. Lampel, S. Park, C. Pellegrini, J. Rosenzweig and G. Travish, "Initial Operation of the UCLA Plane Wave Transformer (PWT) Linac," Proceedings of the PAC Conference, Dallas, TX, May 1-5, 1995.

M. Lampel, C. Pellegrini, R. Zhang, C. Joshi, and W. M. Fawley, "An Injector prebuncher for a Plasma Electron Accelerator," Proceedings of the PAC Conference, Dallas, TX, May 1-5, 1995.

1994

Journals

M. Everett, A. Lal, D. Gordon, C. E. Clayton, K. A. Marsh, and C. Joshi, "Demonstration of Trapped Electron Acceleration by a Laser-Driven Relativistic Plasma Wave," Nature 368, 527-529 (1994).

G. Hairapetian, P. Davis, C. E. Clayton, C. Joshi, S. C. Hartman, and C. Pellegrini, "Experimental Demonstration of Dynamic Focusing of a Relativistic Electron Bunch by an Overdense Plasma Lens," Physical Review Letters 72, 2403-2406 (1994).

C. E. Clayton, M. J. Everett, A. Lal, D. Gordon, K. A. Marsh, and C. Joshi, "Acceleration and Scattering of Injected Electron in Plasma Beat Wave Accelerator Experiments," Physics of Plasmas 1, 1753- 1760 (1994).

C. Joshi, C. E. Clayton, W. B. Mori, J. M. Dawson, and T. Katsouleas, "The Prospects for a GeV Plasma Beat Wave Accelerator," Comments on Plasma Physics and Controlled Fusion 16, 65-77, (1994).

Conferences

C. Joshi, "Group Report," to appear in AIP Conference Proceedings of the Advanced Accelerator Concepts Workshop, Lake Geneva, Wisconsin, June 12-18, 1994.

C. Pellegrini, J. Rosenzweig, R. Zhang, F. Hartemann, G. LeSage, C. Joshi, N. Luhmann, D. McDermott, R. Bonifacio, L. de Salvo and P. Pierini, "The Design of a Millimeter Wave Waveguide FEL Experiment," Proceedings of the First Asian Symposium on Free Electron Laser (May 27-39, 1993, Beijing, China), ed. by Tang Jinyuan and Wang Gang, IHEP, May 1994, pp. 151-156.

T. Katsouleas, J. Yoshii, W. B. Mori, C. Joshi, and C. Clayton, "A Beam Size Monitor Based on Appearance Intensities for Multiple Gas Ionization," AIP Conference Proceedings of the Advanced Accelerator Concepts Workshop, Lake Geneva, Wisconsin, June 12-18, 1994.

1993

Journals

C. E. Clayton, K. A. Marsh, A. Dyson, M. Everett, A. Lal, W. P. Leemans, R. Williams, and C. Joshi, "Ultrahigh Gradient Acceleration of Injected Electrons by Laser-Excited Relativistic Electron Plasma Waves," Physical Review Letters 70, 37, January 1993.

R. L. Williams, C. E. Clayton, C. Joshi, and T. Katsouleas, "Studies of Classical Radiation Emission From Plasma Wave Undulators," IEEE Special Issue on the Generation of Coherent Radiation Using Plasmas. Vol. 21, 156-166, February, 1993.

R. L. Savage, Jr., R. P. Brogle, W. B. Mori, and C. Joshi, "Frequency Upshifting and Pulse Compression via Underdense Relativistic Ionization Fronts," IEEE Special Issue on the Generation of Coherent Radiation Using Plasmas, Vol. 21, 5-19, February, 1993.

Y. Sakawa, C. Joshi, P. K. Kaw, F. F. Chen, and V. K. Jain, "Excitation of the Modified Simon-Hoh Instability in an Electron Beam Produced by Plasma," Physics of Fluids B 5, 1681-1694 (1993).

Conferences

C. E. Clayton, K. A. Marsh, A. Dyson, M. Everett, A. Lal, W. P. Leemans, R. Williams, and C. Joshi, "Experimental Demonstration of Laser Acceleration of Electrons via Relativistic Plasma Waves," Proceedings of the 1993 SPIE Conference, January 16-23, 1993, Los Angeles, CA, 14 pp.

C. Zhang, T. Katsouleas, and C. Joshi, "Harmonic Frequency Generation & Chaos in Laser-Driven Molecular Vibrations," Proceedings of Shortwavelength V: Physics: with Intense Laser Pulses. San Diego, CA, March 29-31, 1993.

C. E. Clayton, K. A. Marsh, M. Everett, A. Lal, and C. Joshi, "Demonstration of Plasma Beat Wave Acceleration of Electrons from 2 MeV to 20 MeV," PAC Proceedings, Washington, D.C., May 17-20, 1993.

S. C. Hartman, N. Barov, S. Park, C. Pellegrini, J. Rosenzweig, G. Travel, R. Zhang, P. Davis, C. Joshi and G. Hairapetian, "Emittance Measurements of the 4.5 MeV UCLA RF Photo-Injector," PAC Proceedings, Washington, D.C., May 17-20, 1993.

C. Pellegrini, N. Barov, S. C. Hartman, S. Park, J. Rosenzweig, G. Travish, R. Zhang, P. Davis, C. Joshi, and G. Hairapetian, "Initial Operation and Beam Characteristics of the UCLA S-band RF Photo-Injector," PAC Proceedings, Washington, D.C., May 17-20, 1993.

G. Hairapetian, P. Davis, C. E. Clayton, C. Joshi, S. Hartman, C. Pellegrini, and T. Katsouleas, "Experimental Demonstration of Plasma Lens Focusing," PAC Proceedings, Washington, D.C., May 17-20, 1993.

G. Hairapetian, P. Davis, M. Everett, C. Clayton, C. Joshi, S. Hartman, S. Park, and C. Pellegrini, "Streak Camera Measurements of Electron Bunch Length from a Copper Photocathode in an RF Gun," PAC Proceedings. Washington, D.C., May 17-20, 1993.

P. Davis, G. Hairapetian, C. Clayton, C. Joshi, S. Hartman, S. Park, C. Pellegrini, and J. Rosenzweig, "Quantum Efficiency Measurements of a Copper Photocathode in an RF Electron Gun," PAC Proceedings, Washington, D. C., May 17-20, 1993.

S. C. Hartman, N. Barov, C. Pellegrini, S. Park, J. Rosenzweig, G. Travish, R. Zhang, C. Clayton, P. Davis, M. Everett, C. Joshi, and G. Hairapetian, "Initial Measurements of the UCLA rf Photoinjector," Nucl. Instr. and Meth. in Phys. Res. 340, 219-230 (1994); Proceedings of the Workshop on High Intensity Electron Sources, Legnaro, Padova, Italy, 1993.

J. Rosenzweig, N. Barov, S. Hartman, M. Hogan, S. Park, C. Pellegrini, G. Travish, R. Zhang, P. Davis, G. Hairapetian, and C. Joshi, "Initial Measurements of the UCLA rf Photoinjector," Nucl. Instr. and Meth. in Phys. Rev. A 341, 379-385 (1994); Proceedings of l5th Int'l FEL Conf., The Hague, Netherlands, Aug. 23-27, 1993.

1992

Journals

C. Joshi, Y. Kitagawa, and A. Lal, "Degenerate and Resonant Four-Wave Mixing in Plasmas," Int'l Journal of Nonlinear Optical Physics, Vol. 1 (1), 1-14, January (1992).
W. P. Leemans, C. Joshi, W. B. Mori, C. E. Clayton, and T.W. Johnston, "Nonlinear Dynamics of Driven Relativistic Electron Plasma Waves," Phys. Rev. A 46(8), 5112-5122, October (1992).

W. P. Leemans, C. E. Clayton, W. B. Mori, K. A. Marsh, P.K. Kaw, A. Dyson and C. Joshi, "Experiments and Simulations of Tunnel-Ionized Plasma," Phys. Rev. A 46(2), 1091-1105, July (1992).

Y. Sakawa, C. Joshi, P. K. Kaw, V. K. Jain, T. W. Johnston, F. F. Chen, "Nonlinear Evolution of the Modified Simon-Hoh Instability via a Cascade of Sideband Instabilities in a Weak Beam Plasma System," Physical Review Letters 69, 85-88 (1992).

C. B. Darrow, C. Coverdale, M. D. Perry, W. B. Mori, C. Clayton, K. Marsh, and C. Joshi, "Strongly Coupled Stimulated Raman Backscatter From Sub-picosecond Laser-Plasma Interactions," Physical Review Letters 69, 442-445, July (1992).

R. L. Savage Jr., C. Joshi and W. B. Mori, "Frequency Upconversion of Electromagnetic Radiation Upon Transmission into an Ionization Front," Physical Review Letters 68, 946-949, (1992).

W. P. Leemans, C. E. Clayton, W. B. Mori, K. A. Marsh, A. Dyson, and C. Joshi, "Plasma Physics Aspects of Tunnel-Ionized Gases," Physical Review Letters 68, 321-324 (1992).

Conferences

P. G. Davis, G. Hairapetian, C. Joshi, N. C. Luhmann Jr., S. C. Hartman, S. Park, C. Pellegrini, J. B. Rosenzweig, and J. A. Smolin, "Design and Operation of a Novel, Compact 20 MeV Linac at UCLA," Proceedings of the SPIE's OE LASE '92, Los Angeles, CA, January 19-24, 1992.

J.W.Dodd, S.C.Hartman, S.Park, C.Pellegrini, J.B.Rosenzweig, J.A.Smolin, W.A.Barletta, D.B.Cline, J.G.Davis, C.J.Joshi, N.C.Luhmann Jr.,S.N.Ivanchenkov, A.S.Khlebnikov, Yu.Yu.Lachin, and A.A.Varfolomeev, "The UCLA Infrared Free Electron Laser," Proceedings of the OE/LASE '92, Los Angeles, CA, (Intense Laser Beams, Richard C. Wade and Peter B. Ulrich, eds., Proc SPIE-1628, 1992).

J.W.Dodd, S.C.Hartman, S.Park, C.Pellegrini, J.B.Rosenzweig, D.B.Cline, G.Hairapetian, J.Kolonko, J.A.Smolin, J.G.Davis, C.J.Joshi, N.C.Luhmann Jr., S.N.Ivanchenkov, A.S.Khlebnikov, Yu.Yu.Lachin, A.A.Varfolomeev, and W.A.Barletta, "The UCLA Compact Infrared Free-Electron Laser," Proceedings of the 1992 International Free-Electron Laser Conference.

R. L. Savage Jr., R. P. Brogle, W. B. Mori, and C. Joshi, "Photon Acceleration via Laser-Produced Ionization Fronts," Proceedings of 8th International Conference on Ultrafast Phenomena, Antibes-Juan-les-pins, France, June 8-12, 1992, 3 pp.

C. Joshi, C. E. Clayton, K. A. Marsh, A. Dyson, M. Everett, A. Lal, W. P. Leemans, R. Williams, T. Katsouleas, W. B. Mori, "Acceleration of Injected Electrons by the Plasma Beat Wave Accelerator," Proceedings of the Advanced Accelerator Concepts Workshop, Port Jefferson, Long Island, NY, June 14-20, 1992.

S. Park. N. Barov, S. Hartman, C. Pellegrini, J. Rosenzweig, P. Tran, G. Travish, R. Zhang, P. Davis, G. Hairapetian, C. Joshi, and N. Luhmann Jr., "Photoelectron Beams From the UCLA RF Gun," Proceedings of the Advanced Accelerator Concepts Workshop, Port Jefferson, Long Island, NY, June 14-20, 1992.

C. B. Darrow, E. M. Campbell, M. D. Perry, C. Joshi, C. Clayton, T. Katsouleas, W. B. Mori, and K. Marsh, "Relativistic Plasma Physics with Ultra-High-Brightness Lasers," in Nonlinear and Relativistic Effects in Plasmas, V. Stefan, editor, (AIP, New York, 1992), pp. 35-42.

W. P. Leemans and C. Joshi, "On the Eulerian Analysis of Large Amplitude Relativistic Plasma Waves," in Nonlinear and Relativistic Effects in Plasmas, V. Stefan, editor, (AIP, New York, 1992), pp. 327-339.

1991

Journals

C. Joshi and W. B. Mori, "Frequency Upconversion of Electromagnetic Radiation Using Plasmas," in From Fusion to Light Surfing. ed. by T. Katsouleas (Addison Wesley, 1991) .

Y. Kitagawa and C. Joshi, "Demonstration of Degenerate Four Wave Mixing and Phase Conjugation of CO₂ Laser in a Plasma," in The Review of Laser Engineering, Vol. 19, No. 5, May 1991, pp. 451-460.

(In Japanese)

W. P. Leemans, C. E. Clayton, K. A. Marsh, and C. Joshi, "Stimulated Compton Scattering From Pre-formed Underdense Plasmas," Physical Review Letters 67, 1434-1437 (1991).

A. Lal and C. Joshi, "Resonant Four Wave Mixing of Laser Radiation in Plasmas," Journal of the Optical Soc. of America B. 8 (10), 2148-2154, October (1991).

Conferences

R. L. Savage Jr., W. B. Mori, C. Joshi, T. W. Johnston, and G. Shvets, "Tunable Radiation Generation Using Underdense Ionization Fronts," Proceedings of the Int'1 Conf. in Research Trends in Coherent Radiation Generation and Particle Accelerators, Feb. 11-13, 1991, La Valencia Hotel, La Jolla, CA, 8 pp.

F. Agharnir, W. A. Barletta, D. Cline, J. Dodd, S. Hartman, T. Katsouleas, J. Kolonko, C. Pellegrini, J. Terrien, J. Davis, C. Joshi, N. C. Luhmann Jr., D. McDermott, S. Ivanchenkov, Y. Lachin, "Saturnus: The UCLA Gain Infrared FEL Project," Proceedings of the 12th Intemational FEL Conference. Paris, France, Sept. (1990), 6 pages, Nuclear Instrument & Meth. Phys. Res. A304 155 (1991).

J.W. Dodd, F. Aghamir, W.A.Barletta, D.B.Cline, S.C.Hartman, T.C.Katsouleas, J.Kolonko, S.Park, C.Pellegrini, J.-C.Terrien, J.G.Davis, C.J.Joshi, N.C.Luhmann, D.B.McDermott, S.N.Ivanchenkov, Yu.Yu. Lachin and A.A.Varfolomeev, "Saturnus: The UCLA Compact Infrared Free-Electron Laser Project," Intense Microwave and Particle Beams II. H.E.Brandt, ed., Proc. SPIE 1407, 467-473 (1991).

J.W.Dodd, S.C.Hartman, S.Park, C.Pellegrini, J.B.Rosenzweig, J.A.Smolin, G.Hairapetian, J.Kolonko, W.A.Barletta, D.B.Cline, J.G.Davis, C.J.Joshi, N.C.Luhmann Jr., S.N. Ivanchenkov, A.S.Klebnikov, Yu.Yu.Lachin, and A.A.Varfolomeev, "Saturnus: The UCLA Infrared Free-Electron Laser Project" IEEE Particle Accelerator Conference, San Francisco, California, May 6-9,1991.

W. B. Mori, T. Katsouleas, C. Darrow, C. E. Clayton, C. Joshi, J. M. Dawson, C. Decker, K. Marsh and S. Wilks, "Laser Wakefields at UCLA and LLNL," Proceedings of IEEE PAC. San Francisco, CA, May 6-9, 1991.

W. P. Leemans, C. E. Clayton, K. Marsh, A. Dyson, and C. Joshi, "Suitability of Tunneling Ionization Produced Plasmas for the Plasma Beat Wave Accelerator," Proceedings of IEEE PAC, San Francisco, CA, May 6-9, 1991.

D. Betz, P. Chen, D. Cline, M. Gundersen, C. Joshi, T. Katsouleas, J. Norem, S. Rajagopalan, J. Rosenzweig, J. J. Su, and R. Williams, "Plasma Lenses for SLAC Final Focus Test Facility," Proceedings of 1991 IEEE PAC, San Francisco, CA, May 6-9, 1991.

S. Hartman, F. Aghamir, W. Barletta, D. Cline, J. Dodd, T. Katsouleas, J. Kolonko, S. Park, C. Pellegrini, J. Rosenzweig, J. Smolin, J. Terrien, J. Davis, G. Hairapetian, C. Joshi, N. Luhmann Jr., and D. McDermott, "Photocathode Driven Linac at UCLA for FEL and Plasma Wakefield Acceleration Experiments," Proceedings of 1991 IEEE PAC, San Francisco, CA, May 6-9, 1991.

R. L. Savage Jr., C. Joshi, and W. B. Mori, "Generation of Highly Tunable Microwave Radiation Via a Relativistic Ionization Front," Proceedings of IEEE MTT-S Int'l Microwave Symposium. Boston, MA, June 11- 14, 1991.

1990

Journals

C. Joshi, "The Nonlinear Optics of Plasmas," Proceedings of the ICTP Spring College on Plasma Physics, Trieste (May, 1989) in Physica Scripta T30, 90-94 (1990).

C. Joshi, C. E. Clayton, K. Marsh, D. B. Hopkins, and A. Sessler, "Demonstration of Frequency Upshifting of Microwave Radiation by Rapid Plasma Creation," IEEE Trans. on Plasma Sci.. 18(5), 814-818, January (1990).

R. L. Williams, C. E. Clayton, C. Joshi, T. Katsouleas, and W. B. Mori, "Studies of Relativistic Wave-Particle Interactions in Plasma Based Collective Accelerators," Laser and Particle Beams. 8(3), 427-449 (1990).

R. L. Williams, C. E. Clayton, C. Joshi, and T. Katsouleas, "Motion of Relativistic Electrons Through Transverse Relativistic Plasma Waves," Rev. Sci. Instr. 61 (10): pp. 3037-3039 (1990).

Conferences

R. L. Williams, C. E. Clayton, C. Joshi, T. Katsouleas, and W. B. Mori, "Theory and Experiments on the Generation of Spontaneous Emission Using a Plasma Wave Undulator: A Progress Report," Proceedings of the SPIE's OE/LASE 1990 Symposium, Los Angeles, CA, January 18-19, 1990.

1989

Journals

D. Umstadter, W. B. Mori, and C. Joshi, "The Coupling of Stimulated Raman and Brillouin Scattering in a Plasma," Phys. of Fluids B1 (1), 183-187 (1989).

C. Joshi, C. E. Clayton, K. Marsh, Y. Sakawa, and R. L. Savage, Jr., "Evidence for Periodic Breakup of a Radially Modulated 0.35 mm Laser Beam due to Thermal Self-Focusing in a Plasma," Optics Communications 70, no. 1, 44-49 (1989).

V. Stefan, B. I. Cohen, and C. Joshi, "Nonlinear Mixing of Electromagnetic Waves in Plasmas," Science 243, 494-500 (1989).

Y. Kitagawa, R. L. Savage, Jr., and C. Joshi, "Demonstration of Collisionally Enhanced Degenerate Four Wave Mixing in a Plasma," Phys. Rev. Lett. 62, 151-154 (1989).

Y. Kitagawa, and C. Joshi, "Phase Conjugation via Degenerate Four Wave Mixing of Laser Light in Plasma," ILE Quarterly Progress Report, ILE-QPR-88-26, ISSN 0289- 1549 (April 1989). Japan.

Conferences

C. E. Clayton, C. Joshi, W. P. Leemans, K. A. Marsh, and R. L. Williams, "Beatwave Acceleration Experiments," in Advanced Accelerator Concepts, AIP Conference Proceedings No. 193, ed. by C. Joshi (AIP, New York, 1989), pp. 3749.

T. Katsouleas, J. J. Su, W. B. Mori, C. Joshi, and J. M. Dawson, "A Compact 100 MeV Accelerator Based on Plasma Wakefields," Proceedings of SPIE's O-E/LASE Conference, Los Angeles, CA, Jan. 15-20, 1989, 6 pages.

C. Joshi, C. E. Clayton, W. P. Leemans, K. A. Marsh, M. T. Shu, and R. L. Williams, "Beatwave Acceleration Experiments at UCLA," Proceedings of the 1989 IEEE Particle Accelerator Conf., Chicago, IL, March 20-23, 1989.

1988

Journals

W. B. Mori, C. Joshi, J. M. Dawson, D. W. Forslund, and J. M. Kindel, "Evolution of Self-focusing of Intense Electromagnetic Waves in a Plasma," Phys. Rev. Lett. 60, 1298, March (1988).

W. P. Leemans, C. Joshi, and C. E. Clayton, "Detection of Trapped Magnetic Fields in a Theta-pinch Plasma Using a Relativistic Electron Beam," Conference Proceedings of the 7th Topical Conference on High Temperature Plasma Diagnostics, March 13-17, 1988, Napa, CA, Review of Scientific Instruments 59, 1641 (1988).

Conferences

C. Joshi, C. E. Clayton, T. Katsouleas, and W. B. Mori, "Interaction of Relativistic Electrons with Space Charge Waves Driven by Laser Beams," in Laser Interaction and Related Plasma Phenomena, Vol. 8, ed. by H. Hora and G. Miley, (Plenum Press, 1988) pp. 257-278.

W. B. Mori, J. M. Dawson, C. Joshi, T. Katsouleas, J. J. Su, and S. Wilks, "The Plasma Wakefield Accelerator," Proceedings of SPIE's Symposium on O-E LASE January 10-17, 1988, Los Angeles, California, 9 pages.

C. Joshi, C. E. Clayton, K. Marsh, W. P. Leemans, R. L. Williams and M. T. Shu, "Test Particle Injection in Relativistic Plasma Waves Excited by Two Co-Propagating Laser Beams," Proceedings of SPIE's Symposium on O-E LASE'88, January 10-17, 1988, Los Angeles, California, 6 pages.

C. E. Clayton, C. Joshi, W. P. Leemans, K. A. Marsh, M. T. Shu, and R. L. Williams, "Beatwave Acceleration Experiments," Proceedings of the 1988 Linear Accelerator Conference, Williamsburg, Virginia, Oct. 2-7, 1988, 3 pages.

1987

Journals

C. Joshi, "Relativistic Plasma Waves and Particle Acceleration," Physics Today, pp. 562-563, January (1987).

D. Umstadter, R. L. Williams, C. E. Clayton, and C. Joshi, "Observation of Steepening in Electron Plasma Waves Driven by Stimulated Raman Backscattering," Phys. Rev. Lett. 59, no. 3, pp. 292-295 (1987).

C. Joshi, T. Katsouleas, J. M. Dawson, Y. T. Yan, and J. M. Slater "Plasma Wave Wigglers Free Electron Lasers," IEEE Journal of Quantum Electronics, QE-23(9): 1571-1577, September 1987.

C. Darrow, W. B. Mori, T. Katsouleas, C. Joshi, D. Umstadter, and C. E. Clayton, "Electrostatic Mode Coupling of Beat Excited Electron Plasma Waves," IEEE Trans. on Plasma Science, special issue on Plasma-Based High-Energy Accelerators, PS-15 (2): 107-130 (1987).

H. Figueroa, C. Joshi and C. E. Clayton, "Experimental Studies of Raman Scattering from Foam Targets at 0.35 mm," Phys. Fluids 30, 586 (1987).

H. Figueroa and C. Joshi, "Contribution to Half-Harmonic Splitting Due to Raman Back Scattering in a Rippled Plasma," Phys. Fluids 30-7, pp. 2294-2296 (1987).

Conferences

C. Joshi, C. E. Clayton, K. Marsh, R. L. Williams, and W. Leemans, "Experimental Work at UCLA on the Plasma Beat Wave Accelerator," Text of Invited Talk, Proceedings of Workshop on New Developments in Particle Acceleration Techniques. Orsay, France, July, 1987.

C. Joshi, T. Katsouleas, C. E. Clayton, W. B. Mori, J. M. Kindel, and D. W. Forslund, "Experimental, Theoretical, and Computational Studies of the Plasma Beat Wave Accelerator at UCLA," AIP Conf. Proceedings No. 156 on Advanced Accelerator Concepts. ed. by F. E. Mills, (AIP, New York, 1987).

C. Joshi, T. Katsouleas, J. M. Dawson, Y. T. Yan, and F. F. Chen, "Plasma Wave Wigglers for Free Electron Lasers," Proceedings of the 1987 Particle Accelerator Conference, March 16-19, 1987, Washington, DC.

F. F. Chen, C. E. Clayton, C. Darrow, J. M. Dawson, C. Joshi, T. Katsouleas, W. P. Leemans, K. Marsh, W. B. Mori, J. J. Su, D. Umstadter, and S. Wilks, "Particles Acceleration by Plasma Waves," Proceedings of the International Conference on Plasma Physics, Kiev, USSR, April 1987.

1986

Journals

C. Darrow, D. Umstadter, T. Katsouleas, W. B. Mori, C. E. Clayton, and C. Joshi, "Saturation of Beat-Excited Plasma Waves by Electrostatic Mode Coupling," Phys. Rev. Lett. 56 (24), 2629-2632 (1986).

T. Katsouleas, C. Joshi, and W. B. Mori, "Comment on Free-Electron Laser and Laser Electron Acceleration Based on the Megagauss Magnetic Fields in Laser Produced Plasmas," Phys. Rev. Lett. 57 (15) 1960 (1986).

C. E. Clayton, and C. Joshi, "Backward Compton Scattering for Probing Electric Fields in a Plasma," Rev. Sci. Instr. 57-8, 1840-1842, (1986) (Special Issue).

Conferences

C. Joshi, "Plasma Accelerators," Proceedings of the XIIIth Intl. Conf. on High Energy Accelerators, Novosibirsk, USSR, August 6- 11, (1986).

C. E. Clayton, C. Joshi, C. Darrow, D. Umstadter and F. F. Chen, "Experimental Studies of the Plasma Beat Wave Accelerator," Advances in Laser Science-I, Dallas, TX, 1985, ed. by W. C. Stwalley and M. Lapp, (AIP Conf. Proc. 146, New York, 1986) pp. 108-111.

C. Darrow, D. Umstadter, C. Joshi, and C. E. Clayton, "Controlled Studies of Wave-Wave Interactions in a Beat-Wave Laser Driven Plasma," in Laser Interaction and Related Plasma Phenomena. Vol. 7, ed. by H. Hora and G. Miley, (Plenum Press, New York, 1986) pp. 757-767.

H. Figueroa and C. Joshi, "Wave Propagation in a Rippled Plasma," in Laser Interaction and Related Plasma Phenomena. Vol. 7, ed. by H. Hora and G. Miley, (Plenum Press 1986) pp. 241-259.

W. B. Mori, C. Joshi, J. M. Dawson, D. W. Forslund, and J. M. Kindel, "Two-dimensional Simulations of Intense Laser Irradiation of Underdense Plasmas," in Laser Interaction and Related Plasma Phenomena, Vol. 7, ed. by H. Hora and G. Miley, (Plenum Press, 1986) pp. 767-781.

1985

Journals

D. W. Forslund, J. M. Kindel, W. Mori, C. Joshi, and J. M. Dawson, "Two Dimensional Simulations of Single Frequency and Beat Wave Laser-Plasma Heating," Phys. Rev. Lett. 54 (6), 558-561 (1985).

K. Marsh, C. Joshi, J. Janesick, and S. A. Collins, "Nondispersive X-ray Spectroscopy and Imaging of Plasmas Using a Charge-Coupled Device," Rev. Sci. Instrum. 56(5)II, 837-839 (1985), (Special Issue).

C. Joshi, "Laser Accelerators," invited paper, IEEE J. Nucl. Sc.. NS-32(5): 15761581, October (1985), (Special Issue).

C. E. Clayton, C. Joshi, C. Darrow, D. Umstadter, and F. F. Chen, "Experimental Study of the Plasma Beat Wave Accelerator," IEEE J. Nucl. Sci. NS-32(5): 3551-3553, October 1985, (Special Issue).

W. B. Mori, C. Joshi, J. M. Dawson, K. Lee, D. W. Forslund, J. M. Kindel, "Studies of the Plasma Droplet Accelerator Scheme," IEEE J. Nucl. Sci. NS-32 (5): 3503-3505 (1985), (Special Issue).

C. E. Clayton, C. Joshi, C. Darrow, and D. Umstadter, "Relativistic Plasma-Wave Excitation by Collinear Optical Mixing," Phys. Rev. Lett. 54, 21:2343-2346 (1985).

C. E. Clayton, C. Joshi, C. Darrow, and D. Umstadter, "Comment on Relativistic Plasma Wave Excitation by Collinear Optical Mixing--Clayton et al. Respond," Phys. Rev. Lett. 55, 15:1652 (1985).

C. E. Clayton, C. Darrow, and C. Joshi, "A Novel Small-Angle Collective Thomson Scattering System," Applied Optics 24, 17:2823-2826 (1985).

Conferences

C. Joshi, C. E. Clayton, C. Darrow, and D. Umstadter, "Experimental Study of Beat Wave Excitation of High Phase Velocity Space Charge Waves in a Plasma for Particle Acceleration," Second Workshop on Laser Acceleration of Particles, AIP Conf. Proc. No. 130, ed. by C. Joshi and T. Katsouleas (AIP, New York, 1985), pp. 99-113

T. Katsouleas, C. Joshi, J. M. Dawson, F. F. Chen, C. E. Clayton, W. B. Mori, C. Darrow, and D. Umstadter, "Plasma Accelerators," Second Workshop on Laser Acceleration of Particles, AIP Conf. Proc. No. 130, ed. by C. Joshi and T. Katsouleas, (AIP, New York, 1985) pp. 63-98.

J. M. Kindel, D. W. Forslund, W. B. Mori, C. Joshi, and J. M. Dawson, "Two Dimensional Beat Wave Acceleration Simulation," Proceedings of the International Conf. on Lasers '84, ed. by K. M. Corcoran, D. M. Sullivan, and W. C. Stwalley, pp. 462-465 (STS Press, McLean, VA, 1985).

C. Joshi, C. E. Clayton, C. Darrow, D. Umstadter, "Experiments on the Plasma Beat Wave Accelerator at UCLA," Proc. of the International Conf. on Lasers' 84. ed. K. M. Corcoran, D. M. Sullivan and W. C. Stwalley, pp. 467-471, (STS Press, McLean, VA, 1985).

1984

Journals

H. Figueroa, C. Joshi, H. Azechi, N. A. Ebrahim and K. Estabrook, "Stimulated Raman Scattering, Two-Plasmon Decay, and Hot Electron Generation in Underdense Plasmas Produced by a 0.35 mm Laser Beam," Physics of Fluids 27, 1887 (1984).

C. Joshi, W. Mori, T. Katsouleas, and J. M. Dawson, "Ultra High Gradient Particle Acceleration by Intense Laser-Driven Plasma Density Waves," Nature 311-5896: 525-529 (1984)

Conferences

C. E. Clayton, C. Joshi, and F. F. Chen, "Space and Time Evolution of SBS Driven Ion Wave and Harmonics," Laser Interaction and Related Plasma Phenomena, Vol. 6, ed. by G. H. Miley and H. Hora, (Plenum Press, 1984), pp. 621-631.

H. Figueroa, C. Joshi, C. E. Clayton, H. Azechi, N. A. Ebrahim, K. Estabrook, "High-Frequency Instabilities in Underdense Plasmas Produced by a 0.35 mm Laser Beam," Laser Interaction and Related Plasma Phenomena, Vol. 6, ed. by G. H.Miley and H. Hora, (Plenum Press, 1984), pp. 527-543.

C. Joshi, "The Surfatron Laser-Plasma Accelerator--Prospects and Limitations," Proceedings of the Workshop on Laser and Plasma Collective Accelerators, International Centre for Theoretical Physics, Trieste, Italy, in Radiation in Plasmas, ed. by B. McNamara, World Scientific, 1:514-527 (1984).

J. M. Kindel, D. W. Forslund, W. Mori, C. Joshi, and J. M. Dawson, "Plasma Simulation Studies of Electron Acceleration for Beat Wave and Single Frequency Laser Heating Schemes," Proceedings of the 1984 International Conference on Plasma Physics, Lausanne, Switzerland, June-July 1984, pp.1120-1124.

C. Joshi, "Summary Report of the Working Group on Plasma Accelerators," Proceedings of Workshop on the Generation of High Fields for Particle Acceleration to Very High Energies, Frascati, Italy, pp. 177-191, Sept. 23-Oct. 1 (1984).

1983

Journals

W. Mori, C. Joshi, and J. M. Dawson, "A Plasma Wave Accelerator - II," IEEE Trans. Nucl. Sc. NS-30, 4:3244-3246 (1983).

C. E. Clayton, C. Joshi, and F. F. Chen, "Ion Trapping Saturation of the Brillouin Instability," Phys. Rev. Lett. 51-18, 1656-1659 (1983).

Conferences

T. Katsouleas, C. Joshi, W. B. Mori and J. M. Dawson, "Prospects of the Surfatron Laser-Plasma Accelerator," Proceedings of 12th International Conference on High Energy Physics, Fermi National Accelerator Laboratory, August 11- 16, pp. 460-462 (1983).

1982

Journals

C. Joshi, C. E. Clayton, and F. F. Chen, "Resonant Self-focusing of Laser Light in a Plasma," Phys. Rev. Lett. 48-13, 874-877 (1982).

C. Joshi, C. E. Clayton, A. Yasuda, and F. F. Chen, "Direct Observation of Laser Beam Filamentation in an Underdense Plasma," J. Appl. Phys. 53, 215-217 (1982).

N. A. Ebrahim, C. Joshi, and H. A. Baldis, "Energy Deposition by Hot Electrons in CO₂-Laser-Irradiated Targets," Phys. Rev. A, 25, 2440-2443 (1982).

Conferences

C. Joshi, "The Plasma Beat-Wave Accelerator - I Experiments," Laser Acceleration of Particles, AIP Conf. Proc. No. 91, ed. by P. Channell (AIP, New York, 1982), pp. 28-42

N. H. Burnett, N. A. Ebrahim, G. D. Enright, P. A. Jaanimagi, and C. Joshi, "Hot Electron Energy Coupling and Transport in 10 mm Laser Energy Irradiation," Proceedings of the Japan-U.S. Seminar on Theory and Application of Multiply- Ionized Plasmas Produced by Laser and Particle Beams. Nara, Japan, May 3-7, pp. 318-329 (1982).

F. F. Chen, C. Joshi, C. E. Clayton, B. Amini, and H. C. Barr, "Experiments on Nonlinear Phenomena in Underdense Plasmas," Proceedings of the Japan-U.S. Seminar on Theory and Application of Multiply-Ionized Plasmas Produced by Laser and Particle Beams, Nara, Japan, May 3-7, pp. 248-255 (1982).

H. Azechi, N. A. Ebrahim, H. Figueroa and C. Joshi, "Hot Electron Generation in UV Laser-Irradiated Underdense Plasmas," Proceedings of the IXth IAEA Conf. on Plasma Physics and Controlled Nuclear Fusion Research, Baltimore, Maryland, September 1-8, l: 115-123 (1982).

C. E. Clayton, H. Huey, C. Pawley, A. Y. Lee, B. Amini, F. F. Chen, C. Joshi, and N. C. Luhmann, Jr., "Experimental Modeling of Laser-Plasma Interaction Physics," Proceedings of the IXth IAEA Conf. on Plasma Physics and Controlled Nuclear Fusion Research, Baltimore, Maryland, September 1 -8, pp. 105- 113 (1982).

C. Joshi, "The Plasma Beat Wave Accelerator," Proceedings of the ECFA-RAL Meeting, Oxford, United Kingdom, pp. 195-208 (1982).

1981

Journals

C. Joshi and P. B. Corkum, "Generation of Gigawatt Subnanosecond 1.06 mm Pulses by Regenerative Amplification in Nd: Glass," Optics Comm. 36, 82-86 (1981).

N. A. Ebrahim and C. Joshi, "Electron Heating in High Intensity CO₂ Laser-Plasma Interaction," Phys. of Fluids 24, 138-144 (1981).

N. A. Ebrahim, C. Joshi, and H. A. Baldis, "Electron Acceleration Below Quarter Critical Density in CO₂ Laser-Produced Plasmas," Physics Letters 84A, 253-255 (1981).

P. A. Jaanimagi, N. A. Ebrahim, N. H. Burnett, and C. Joshi, "Return Current Electron Streams in High Intensity Laser Target Interaction," Appl. Phys. Lett. 10, 734-736 (1981).

C. Joshi, T. Tajima, J. M. Dawson, H. A. Baldis, and N. A. Ebrahim, "Forward Raman Instability and Electron Acceleration" Phys. Rev. Lett. 47-18, 1285-1288 (1981).

C. E. Clayton, C. Joshi, A. Yasuda, and F. F. Chen, "Dependence of Brillouin Scattering on Target Material and f Number," Phys. Fluids 24, 2312-2318 (1981).

Conferences

M. C. Richardson, M. D. J. Burgess, N. H. Burnett, N. A. Ebrahim, G. D. Enright, R. Fedosejevs, P. A. Jaanimagi, C. Joshi, R. Marjoribanks, and D. M. Villeneuve, "The Interaction of Intense Nanosecond CO₂ Laser Radiation with Limited Mass Targets," Laser Interaction and Related Plasma Phenomena, Vol. 5, ed. by H. Schwarz and H. Hora, Plenum Press (1981).

C. Joshi, N. H. Burnett, and N. A. Ebrahim, "Energy Transport and Symmetry Considerations in Hot Electron Microexplosions Driven by a CO₂ Laser," Proceedings of the Topical Conference on Symmetry Aspects of Inertial Fusion Implosions. Edited by S. Bodner, Washington, D. C., May 1981, pp. 68-78.

1980

Journals

C. Joshi, N. A. Ebrahim, M. C. Richardson, "Fast Ion Emission From CO₂ Laser Produced Microballoon Plasmas," IEEE Trans. on Plasma Science PS-8, 246 (1980).

N. A. Ebrahim, H. A. Baldis, C. Joshi, R. Benesch, "Hot Electron Generation by the Two-Plasmon Decay Instability in the Laser-Plasma Interaction at 10.6 mm," Phys. Rev. Lett. 45-14, 1179-1182 (1980).

1979

Journals

C. Joshi, G. D. Chapman, R. W. Sancton, "A Fourier Transform Technique for Quantitative Assessment of Ion Tracks in Cellulose Nitrate Film," J. Appl. Physics 50-5, 3096-3101 (1979)

C. Joshi, M. C. Richardson, G. D. Enright, "Quantitative Measurements of Fast Ions from CO₂ Laser-Produced Plasmas," Applied Physics Lett. 34-10, 625-627 (1979).

N. A. Ebrahim, C. Joshi, D. M. Villeneuve, N. H. Burnett, M. C. Richardson, "Anomalous Energy Transport to Rear Surface of Microdiscs at High Laser Irradiances," Phys. Rev. Lett. 43, 1995 (1979).