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2013

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Stable, tunable, quasimonoenergetic electron beams produced in a laser wakefield near the threshold for self-injection, Sudeep Banerjee, Serguei Y. Kalmykov, Nathan D. Powers, Grigory V. Golovin, Viswanathan Ramanathan, Nathaniel J. Cunningham, Kevin J. Brown, Shouyuan Chen, Isaac A. Ghebregziabher, Bradley A. Shadwick, Donald Umstadter, B. M. Cowan, D. Bruhwiler, A. Beck, and E. Lefebvre

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Spectral bandwidth reduction of Thomson scattered light by pulse chirping, Isaac A. Ghebregziabher, Bradley A. Shadwick, and Donald Umstadter

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Quasi-monoenergetic and tunable X-rays from a laser-driven Compton light source, Nathan D. Powers, Isaac A. Ghebregziabher, Grigory V. Golovin, Cheng Liu, Shouyuan Chen, Sudeep Banerjee, Jun Zhang, and Donald P. Umstadter

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MeV-Energy X Rays from Inverse Compton Scattering with Laser-Wakefield Accelerated Electrons, Donald Umstadter, S. Chen, N.D. Powers, I. Ghebregziabher, C. Maharjan, C. Liu, G. Golovin, Sudeep Banerjee, J. Zhang, N. Cunningham, A. Moorti, S. Clarke, and Sara Pozzi

2012

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Generation of tunable, 100–800 MeV quasi-monoenergetic electron beams from a laser-wakefield accelerator in the blowout regime, Sudeep Banerjee, Nathan Powers, Viswanathan Ramanathan, I. Ghebregziabher, K. J. Brown, C. Maharjan, S. Chen, A. Beck, E. Lefebvre, S. Y. Kalmykov, Bradley Shadwick, and Donald Umstadter

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Computationally efficient methods for modelling laser wakefield acceleration in the blowout regime, B. M. Cowan, Serguei Y. Kalmykov, A. Beck, X. Davoine, K. Bunkers, A. F. Lifschitz, E. Lefebvre, D. Bruhwiler, Bradley Shadwick, and Donald Umstadter

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Viewpoint: Extreme X Rays Probe Extreme Matter, Donald Umstadter

2011

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Background-Free, Quasi-Monoenergetic Electron Beams from a Self-Injected Laser Wakefield Accelerator, Sudeep Banerjee, S. Kalmykov, N. Powers, Viswanathan Ramanathan, Nathan A. Chandler-Smith, K. Brown, Shuo Chen, A. Moorthi, I. Ghebregziabher, C. Maharjan, Bradley Shadwick, Donald Umstadter, A. Beck, E. Lefebvre, A. Cowan, and D. Bruhwiler

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Electron self-injection into an evolving plasma bubble: Quasi-monoenergetic laser-plasma acceleration in the blowout regime, S. Y. Kalmykov, A. Beck, S. A. Yi, V. N. Khudik, M. C. Downer, E. Lefebvre, Bradley Shadwick, and Donald Umstadter

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Laser-Wakefield Accelerators: Glass-guiding benefits, Donald P. Umstadter

2010

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Submillimeter-resolution radiography of shielded structures with laser-accelerated electron beams, Viswanathan Ramanathan, Sudeep Banerjee, Nathan Powers, Nathaniel Cunningham, Nathan A. Chandler-Smith, Kun Zhao, Kevin Brown, Donald Umstadter, Shaun Clarke, Sara Pozzi, James Beene, Randy Vane, and David Schultz

2009

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High-energy Laser-accelerated Electron Beans for Long-range Interrogation, Nathaniel Cunningham, Sudeep Banerjee, Viswanathan Ramanathan, Nathan Powers, Nathan A. Chandler-Smith, Randy Vane, David Schultz, Sara Pozzi, Shaun Clark, James Beene, and Donald Umstadter

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Development of a Source of Quasi-Monochromatic MeV Energy Photons, Donald Umstadter, Sudeep Banerjee, Viswanathan Ramanathan, Nathan Powers, Nathaniel Cunningham, and Nathan A. Chandler-Smith

2006

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Observation of relativistic cross-phase modulation in high-intensity laser-plasma interactions, Shouyuan Chen, Matthew Rever, P. Zhang, W. Theobald, and Donald P. Umstadter

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Experimental observation of nonlinear Thomson scattering, Szu-yuan Chen, Anatoly Maksimchuk, and Donald Umstadter

2005

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Optical Deflection and Temporal Characterization of an Ultrafast Laser-Produced Electron Beam, Sudeep Banerjee, Scott Sepke, Rahul Shah, Anthony Valenzuela, Anatoly Maksimchuk, and Donald P. Umstadter

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Laser based synchrotron radiation, Kim Ta Phuoc, Frederic Burgy, Jean-Philippe Rousseau, Victor Malka, Antoine Rousse, Rahul Shah, Donald P. Umstadter, Alexander Puhkov, and Sergei Kiselev

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Thomson scattering and ponderomotive intermodulation within standing laser beat waves in plasma, Scott Sepke, Y.Y. Lau, James Paul Holloway, and Donald P. Umstadter

2004

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Simulation of ultrashort electron pulse generation from optical injection into wake-field plasma waves, D.S. Dodd, J.K. Kim, and Donald P. Umstadter

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Mechanism and Control of High-Intensity-Laser-Driven Proton Acceleration, T. Lin, K. Flippo, M. Rever, A. Maksimchuk, and Donald P. Umstadter

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High-Energy Ion Generation by Short Laser Pulses, A. Maksimchuk, K. Flippo, H. Krause, G. Mourou, K. Nemoto, D. Schultz, Donald P. Umstadter, R. Vane, V. Yu. Bychenkov, G.I. Dudnikova, V.F. Kovalev, K. Mima, V.N. Novikov, Y. Sentoku, and S.V. Tolokonnikov

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Production of a keV X-Ray Beam from Synchrotron Radiation in Relativistic Laser-Plasma Interaction, Antoine Rousse, Kim Ta Phuoc, Rahul Shah, Alexander Pukhov, Eric Lefebvre, Victor Malka, Sergey Kiselev, Frederic Burgy, Jean-Philippe Rousseau, Donald P. Umstadter, and Daniele Hulin

2003

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Backscattering of an Intense Laser Beam by an Electron, Fei He, Y.Y. Lau, Donald P. Umstadter, and Richard Kowalczyk

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Erratum: ‘‘Phase dependence of Thomson scattering in an ultraintense laser field’’ Phys. Plasmas 9, 4325 [2002], Fei He, Y. Y. Lau, Donald P. Umstadter, and Trevor Strickler

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X-Ray Radiation from Nonlinear Thomson Scattering of an Intense Femtosecond Laser on Relativistic Electrons in a Helium Plasma, K. Ta Phuoc, A. Rousse, M. Pittman, J.P. Rousseau, V. Malka, S. Fritzler, Donald P. Umstadter, and D. Hulin

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Plasma density gratings induced by intersecting laser pulses in underdense plasmas, Z.-M. Sheng, J. Zhang, and Donald Umstadter

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Relativistic laser–plasma interactions, Donald Umstadter

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Criss-crossing Laser Beams Zoom Electrons Along, P. Zhang, N. Saleh, S. Chen, Z.M. Sheng, and Donald P. Umstadter

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Laser-Energy Transfer and Enhancement of Plasma Waves and Electron Beams by Interfering High-Intensity Laser Pulses, P. Zhang, N. Saleh, S. Chen, Z.M. Sheng, and Donald P. Umstadter

2002

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Study of Energetic Ion Generation from High-Intensity-Laser Dense-Plasma Interactions, K. Flippo, A. Maksimchuk, S. Banerjee, K. Nash, V. Wong, T. Lin, K. Nemoto, V. Yu. Bychenkov, Y. Sentoku, G. Mourou, and Donald P. Umstadter

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Phase dependence of Thomson scattering in an ultraintense laser field, Fei He, Y. Y. Lau, Donald P. Umstadter, and Trevor Strickler

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A Proof-of-Principle Experiment of Optical Injection of Electrons in Laser-Driven Plasma Waves, N. Saleh, P. Zhang, S. Chen, Z.-M. Sheng, A. Maksimchuk, V. Yanovsky, and Donald P. Umstadter

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High-energy ion generation in interaction of short laser pulse with high-density plasma, Y. Sentoku, V. Y. Bychenkov, K. Flippo, A. Maksimchuk, K. Mima, G. Mourou, Z. M. Sheng, and Donald Umstadter

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An All Optical Laser Wakefield Electron Injector, Donald Umstadter

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Developments in Relativistic Nonlinear Optics, Donald P. Umstadter, S. Banerjee, S. Chen, E. Dodd, K. Flippo, A. Maksimchuk, N. Saleh, A. Valenzuela, and P. Zhang

2001

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Fast Ignitor Concept with Light Ions, V. Yu. Bychenkov, W. Rozmus, A. Maksimchuk, Donald P. Umstadter, and C.E. Capjack

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Coherent control of stimulated Raman scattering using chirped laser pulses, Evan S. Dodd and Donald P. Umstadter

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Laser Acceleration of Protons from Thin Film Targets, K. Flippo, S. Banerjee, V. Yu. Bychenkov, S. Gu, A. Maksimchuk, G. Mourou, K. Nemoto, and Donald P. Umstadter

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Laser-triggered ion acceleration and table top isotope production, K. Nemoto, A. Maksimchuk, S. Banerjee, K. Flippo, G. Mourou, Donald P. Umstadter, and B. Yu. Bychenkov

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Status of the LILAC Experiment, N. Saleh, P. Han, C. Keppel, P. Gueye, V Yanovsky, and Donald P. Umstadter

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All-Optical Electron Injector, Phil Schewe, James Riordon, Ben Stein, and Donald P. Umstadter

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An All Optical Laser Wakefield Electron Injector, Donald P. Umstadter

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Interactions of Ultrashort, Ultrahigh Intensity Laser Pulses with Underdense Plasmas , Xiaofang Wang, Wei Yu, Sterling Backus, Margaret Murnane, Henry Kapteyn, and Donald P. Umstadter

2000

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Excitation and damping of a self-modulated laser wakefield, S.-Y. Chen, M. Krishnan, A. Maksimchuk, and Donald P. Umstadter

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A Cone of Coherent Light, S.-Y. Chen, A. Maksimchuk, E. Esarey, and Donald P. Umstadter

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A Cone of Coherent Light, S.-Y. Chen, A. Maksimchuk, E. Esarey, and Donald P. Umstadter

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Observation of Phase-Matched Relativistic Harmonic Generation, S.-Y. Chen, A. Maksimchuk, E. Esarey, and Donald P. Umstadter

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Forward Ion Acceleration in Thin Films Driven by a High-Intensity Laser, A. Maksimchuk, S. Gu, K. Flippo, Donald P. Umstadter, and V. Yu. Bychenkov

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Pulse radiolysis of liquid water using picosecond electron pulses produced by a table-top terawatt laser system, Ned Saleh, Kirk Flippo, Koshichi Nemoto, Donald P. Umstadter, Robert A. Crowell, Charles D. Jonah, and Alexander D. Trifunac

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Tabletop Accelerators are Brighter and Faster, Phil Schewe , Ben Stein, and Donald P. Umstadter

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Photonuclear Physics: Laser Splits Atom, Donald P. Umstadter

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DENSE AND RELATIVISTIC PLASMAS PRODUCED BY COMPACT HIGH-INTENSITY LASERS, Donald P. Umstadter, S.-Y. Chen, G. Ma, A. Maksimchuk, G. Mourou, M. Nantel, S. Pikuz, G. Sarkisov, and R. Wagner

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Electron Acceleration and the Propagation of Ultrashort High-Intensity Laser Pulses in Plasmas, Xiaofang Wang, Mohan Krishnan, Ned Saleh, Haiwen Wang, and Donald P. Umstadter

1999

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Acceleration of Electrons in a Self-Modulated Laser Wakefield, S.-Y. Chen, M. Krishnan, A. Maksimchuk, and Donald P. Umstadter

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Detailed dynamics of electron beams self-trapped and accelerated in a self-modulated laser wakefield, S.-Y. Chen, M. Krishnan, A. Maksimchuk, R. Wagner, and Donald P. Umstadter

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Electron Injection by Dephasing Electrons with Laser Fields, E. Dodd, J.K. Kim, and Donald P. Umstadter

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Self-focusing, channel formation, and high-energy ion generation in interaction of an intense short laser pulse with a He jet, G.S. Sarkisov, B. Yu. Bychenkov, V.N. Novikov, V.T. Tikhonchuk, A. Maksimchuk, S.-Y. Chen, R. Wagner, G. Mourou, and Donald P. Umstadter

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LASER LIGHT IN, 50-MEV PROTONS OUT, Phillip F. Schewe , Ben Stein, and Donald P. Umstadter

1998

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Evolution of a Plasma Waveguide Created during Relativistic-Ponderomotive Self-Channeling of an Intense Laser Pulse, S.-Y. Chen, G.S. Sarkisov, A. Maksimchuk, R. Wagner, and Donald P. Umstadter

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Experimental observation of relativistic nonlinear Thomson scattering, Szu-yuan Chen, Anatoly Maksimchuk, and Donald Umstadter

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Cold Relativistic Wavebreaking , J.K. Kim and Donald P. Umstadter

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Laser-Plasma Harmonics with High-Contrast Pulses and Designed Prepulses, R.S. Marjoribanks, L. Zhao, F.W. Budnik, G. Kulcsar, A. Vitcu, H. Higaki, R. Wagner, A. Maksimchuk, Donald P. Umstadter, S.P. Le Blanc, and M.C. Downer

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Temporal Contrast in Ti:Sapphire Lasers: Characterization and Control, Marc Nantel , Jiro Itatani, An-Chun Tien, Jerome Faure, Daniel Kaplan, Marcel Bouvier, Takashi Buma, Paul Van Rompay, John Nees, Peter P. Pronko, Donald P. Umstadter, and Gerald A. Mourou

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Pressure Ionization and Line Merging in Strongly Coupled Plasmas Produced by 100-fs Laser Pulses, M. Nantel, G. Ma, S. Gu, C.Y. Côté, J. Itatani, and Donald P. Umstadter

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RELATIVISTIC NONLINEAR OPTICS, Phillip F. Schewe , Ben Stein, and Donald P. Umstadter

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Method and Apparatus for Generating and Accelerating Ultrashort Electron Pulses, Donald P. Umstadter, Joon-Koo Kim, and Evan Dodd

1997

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Observation of laser satellites in a plasma produced by a femtosecond laser pulse, S.A. Pikuz, A. Maksimchuk, Donald P. Umstadter, M. Nantel, I. Yu. Skobelev, A. Ya. Faenov, and A. Osterheld

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Observation of the plasma channel dynamics and Coulomb explosion in the interaction of a high-intensity laser pulse with a He gas jet, G.S. Sarkisov, V. Yu. Bychenkov, V.T. Tikhonchuk, A. Maksimchuk, S.Y. Chen, R. Wagner, G. Mourou, and Donald P. Umstadter

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Study of Laser Plasma Interactions in the Relativistic Regime, Donald Umstadter

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“Atomic Processes in High Energy Density Plasmas," Summaries of FY 1997 Research in the Chemical Sciences, Donald P. Umstadter

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Electron Acceleration by a Laser Wakefield in a Relativistically Self-Guided Channel, R. Wagner, S.-Y. Chen, A. Maksimchuk, and Donald P. Umstadter

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Application of a picosecond soft x-ray source to time-resolved plasma dynamics, J. Workman, M. Nantel, A. Maksimchuk, and Donald P. Umstadter

1996

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Temporal Characterization of a Self-Modulated Laser Wakefield, S.P. Le Blanc, M.C. Downer, R. Wagner, S.-Y. Chen, A. Maksimchuk, G. Mourou, and Donald P. Umstadter

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Signal averaging x-ray streak camera with picosecond jitter, A. Maksimchuk, M. Kim, J. Workman, G. Korn, J. Squier, D. Du, Donald P. Umstadter, G. Mourou, and M. Bouvier

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TABLETOP LASER ACCELERATORS ARE ON THE WAY, Phillip F. Schewe, Ben Stein, and Donald P. Umstadter

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Laser Injection of Ultrashort Electron Pulses into Wakefield Plasma Waves, Donald P. Umstadter, J.K. Kim, and E. Dodd

1995

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Method for Generating a Plasma Wave to Accelerate Electrons, Donald P. Umstadter, Eric Esarey, and Joon K. Kim

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Resonantly laser-driven plasma waves for electron acceleration, Donald P. Umstadter, J. Kim, E. Esarey, E. Dodd, and T. Neubert

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Method and Apparatus for Generating Laser Plasma X-Rays, Donald P. Umstadter, Jonathan Workman, Anatoly Maksimchuk, and Xinbing Liu

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Control of Bright Picosecond X-Ray Emission from Intense Subpicosecond Laser-Plasma Interactions, J. Workman, A. Maksimchuk, X. Liu, U. Ellenberger, J.S. Coe, C.-Y. Chien, and Donald P. Umstadter

1994

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Nonlinear Plasma Waves Resonantly Driven by Optimized Laser Pulse Trains, Donald P. Umstadter, E. Esarey, and J. Kim

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Ultrashort Ultraviolet Free-Electron Lasers, Donald Umstadter, L. H. Yu, E. Johnson, and D. Li

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Femtosecond free-electron laser by chirped pulse amplification, L.H. Yu, E. Johnson, D. Li, and Donald P. Umstadter

1993

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Nonlinear analysis of relativistic harmonic generation by intenselasers in plasmas, E. Esarey, A. Ting, P. Sprangle, Donald P. Umstadter, and X. Liu

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Harmonic Generation by an Intense Laser Pulse in Neutral and Ionized Gases, X. Liu, Donald P. Umstadter, E. Esarey, and A. Ting

1992

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Competition between ponderomotive and thermal forces in short-scale-length laser plasmas, X. Liu and Donald P. Umstadter

1989

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The coupling of stimulated Raman and Brillouin scattering in a plasma, Donald P. Umstadter, W.B. Mori, and C. Joshi

1987

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Observation of steepening in electron plasma waves driven by stimulated Raman backscattering, Donald P. Umstadter, R. Williams, C. Clayton, and C. Joshi

1986

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Saturation of Beat-Excited Plasma Waves by Electrostatic Mode Coupling, C. Darrow, Donald P. Umstadter, T. Katsouleas, W.B. Mori, C.E. Clayton, and C. Joshi

1985

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Clayton et al. Respond, C.E. Clayton, C. Joshi, C. Darrow, and Donald P. Umstadter

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Relativistic Plasma-Wave Excitation by Collinear Optical Mixing, C.E. Clayton, C. Joshi, C. Darrow, and Donald P. Umstadter

1981

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A unidirectional, pulsed far-infrared ring laser, W.A. Peebles, Donald P. Umstadter, D.L. Brower, and N.C. Luhmann Jr.