Publications

Transient, Relativistic Plasma Grating for Tailoring High-Power Laser Fields, Wakefield Plasma Waves, and Electron Injection

Qiang Chen, Dominika Maslarova, Junzhi Wang, Shao Xian Lee, Vojtech Horný, Donald Umstadter

Physical Review Letters 128 , 164801 (2022) Download PDF

Generation of ultrafast electron bunch trains via trapping into multiple periods of plasma wakefields

Grigory Golovin, Vojtěch Horný, Wenchao Yan, Colton Fruhling, Daniel Haden, Junzhi Wang, Sudeep Banerjee, Donald Umstadter

Physics of Plasmas 27, 033105 (2022)

High energy X-ray Compton spectroscopy via iterative reconstruction

D. Haden, G. Golovin. W. Yan, C. Fruhling, P. Zhang, B. Zhao, S. Banerjee, D. Umstadter

Nuclear Instruments and Methods in Physics Research Section A 951, 163032 (2022)

Transverse oscillating bubble enhanced laser-driven betatron X-ray radiation generation

Rafal Rakowski, Ping Zhang, Kyle Jensen, Brendan Kettle, Tim Kawamoto, Sudeep Banerjee, Colton Fruhling, Grigory Golovin, Daniel Haden, Matthew S. Robinson, Donald Umstadter, B. A. Shadwick & Matthias Fuchs

Scientific Reports 12, 10855 (2022) Download PDF

Experimental observation of polarization-resolved nonlinear Thomson scattering of elliptically polarized light

C. Fruhling, J. Wang, D. Umstadter, C. Schulzke, M. Romero, M. Ware, J. Peatross

Physical Review A 104, 053519 (2021)

Traveling-wave Thomson scattering for electron-beam spectroscopy

Q. Chen, V. Horný, R. Syed, and D. Umstadter

Phys. Rev. Accel. Beams 24, 032901 (2021)

Attosecond electron bunch measurement with coherent nonlinear Thomson scattering

C. Fruhling, G. Golovin, and D. Umstadter

Physical Review Accelerator and Beams 23, 072802 (2020)

Electron Trapping from Interactions between Laser-Driven Relativistic Plasma Waves

Grigory Golovin, Wenchao Yan, Ji Luo, Colton Fruhling, Dan Haden, Baozhen Zhao, Cheng Liu, Min Chen, Shouyuan Chen, Ping Zhang, Sudeep Banerjee, and Donald Umstadter

Physical Review Letters 121, 104801 (2018)

Control over high peak-power laser light and laser-driven X-rays

Baozhen Zhao, Sudeep Banerjee, Wenchao Yan, Ping Zhang, Jun Zhang, Grigory Golovin, Cheng Liu, Colton Fruhling, Daniel Haden, Shouyuan Chen, Donald Umstadter

Optics Communication 420, 141-145 (2018)

High-order multiphoton Thomson scattering

W. Yan, Wenchao, C. Fruhling, G. Golovin, D. Haden, J. Luo, Ji, P. Zhang, B. Zhao, J. Zhang, C. Liu, C. Min, S. Chen, S. Banerjee, and D. Umstadter

Nature Photonics 11, 514-520, doi:10.1038/nphoton.2017.100 (2017)

Single-shot structural analysis by high-energy X-ray diffraction using an ultrashort all-optical source

R Rakowski, G Golovin, J O’Neal, J Zhang, P Zhang, B Zhao, MD Wilson, MC Veale, P Seller, S Chen, S Banerjee, D Umstadter, M Fuchs

Scientific Reports 7, 16603 (2017)

Control and optimization of a staged laser-wakefield accelerator

G. Golovin, S. Banerjee, S. Chen, N. Powers, C. Liu, W. Yan, J. Zhang, P. Zhang, B. Zhao, and D. Umstadter

Nuclear Instruments and Methods in Physics Research Section A 830, 375-380 (2016) Download PDF

Intrinsic beam emittance of laser-accelerated electrons measured by x-ray spectroscopic imaging

G. Golovin, S. Banerjee, C. Liu, S. Chen, J. Zhang, B. Zhao, P. Zhang, M. Veale, M. Wilson, P. Seller, and D. Umstadter

Scientific Reports 6, 24622 (2016)

Shielded radiography with a laser-driven MeV-energy X-ray source

S. Chen, G. Golovin, C. Miller, D. Haden, S. Banerjee, P. Zhang, C. Liu, J. Zhang, B. Zhao, S. Clarke, S. Pozzi, and D. Umstadter

Nuclear Instruments and Methods in Physics Research Section B 366, 217-223 (2016)

Independent control of laser wakefield-accelerated electron-beam parameters

G. Golovin, S. Chen, N. Powers, C. Liu, S. Banerjee, J. Zhang, M. Zeng, Z. Sheng, and D. Umstadter

Proc. SPIE9514, Laser Acceleration of Electrons, Protons, and Ions III; and Medical Applications of Laser-Generated Beams of Particles III , 951405 (2015)

Photonuclear and radiography applications of narrowband, multi-MeV all-optical Thomson x-ray source

S. Banerjee, G. Golovin, P, Zhang, D. Haden, S. Chen, C. Liu, J. Zhang, B. Zhao, K. Brown, J. Mills, C. Petersen, and D. Umstadter

Proc. SPIE9515, Research Using Extreme Light: Entering New Frontiers with Petawatt-Class Lasers II , 95151C (2015)

Narrow bandwidth and turnable hard x-rays from an all-laser-driven Thomson light source

D. Umstadter

Proc. SPIE9509, Relativistic Plasma Waves and Particle Beams as Coherent and Incoherent Radiation Sources , 95090A (2015)

All-laser-driven Thomson x-ray sources

D. Umstadter

Contemporary Physics 56, 4, 417-431 (2015)

Turnable monoenergetic electron electron beams from independently controllable laser-wakefield acceleration and injection

G. Golovin, S. Chen, N. Powers, C. Liu, S. Banerjee, J. Zhang, M. Zeng, Z Sheng, and D. Umstadter

Physical Review ST Accelerators and Beams 18, 011301 (2015)

Compact source of narrowband and turnable x-rays for radiography

S. Banerjee, S. Chen, N. Powers, C. Liu, G. Golovin, J. Zhang, B. Zhao, S. Clarke, S. Pozzi, J. Silano, H. Karwowski, and D. Umstadter

Nuclear Instruments and Methods in Physics Research Section B 350, 106-111 (2015)

Wavefront-correction for nearly diffraction-limited focusing of dual-color laser beams to high intensities

B. Zhao, J. Zhang, S. Chen, C. Liu, G. Golovin, S. Banerjee, K. Brown, J. Mills, C. Petersen, and D. Umstadter

Optics Express 22, 22, 26947-26955 (2014)

Generation of 9  MeV γ-rays by all-laser-driven Compton scattering with second-harmonic laser light

C. Liu, G. Golovin, S. Chen, J. Zhang, B. Zhao, D. Haden, S. Banerjee, J. Silano, H. Karwowski, and D. Umstadter

Optics Letters 39, 14, 4132-4135 (2014) Download PDF

Adaptive-feedback spectral-phase control for interactions with transform-limited ultrashort high-power laser pulses

C. Liu, J. Zhang, S. Chen, G. Golovin, S. Banerjee, B. Zhao, N. Powers, I. Ghebregziabher, and D. Umstadter

Optics Letters 39, 1, 80-83 (2014) Download PDF

Adaptive spectral-phase control for laser wakefield electron acceleration

C. Liu, J. Zhang, G. Golovin, S. Chen, S. Banerjee, B. Zhao, N. Powers, I. Ghebregziabher, and D. Umstadter

Lasers and Electro-Optics (CLEO) , paperJTh4L.3 (2014)

Turnable monoenergetic electron beams from staged ionization assisted laser wakefield accelerator

G. Golovin, S. Chen, N. Powers, C. Liu, S. Banerjee, J. Zhang, M. Zeng, Z. Sheng, and D. Umstadter

Lasers and Electro-Optics (CLEO) , paperJTh1L.2 (2014)

Quasi monoenergetic and tunable X-rays by laser Compton scattering from laser wakefield e-beam

N. Powers, I. Ghebregziabher, G. Golovin, C. Liu, S. Chen, S. Banerjee, J. Zhang, and D. Umstadter

Lasers and Electro-Optics (CLEO) , paperJTh3L.6 (2014)

Selective activation with all-laser-driven Thomson ʏ-rays

J. Silano, H. J. Karwowski, S. Clarke, S. Pozzi, S. Banerjee, D. Haden, G. Golovin, S. Chen, I. Ghebregziabher, C. Liu, C. Petersen, J. Zhang, N. Powers, B. Zhao, K. Brown, J. Mills, and D. Umstadter

Proceedings of the 2013 IEEE International Conference on Technologies for Homeland Security , 429-434 (2013)

Spectral bandwidth reduction of Thomson scattered light by pulse chirping

I. Ghebregziabher, B. A. Shadwick, and D. Umstadter

Physical Review ST Accelerators and Beams 16, 030705 (2013)

Repetitive petawatt-class laser with near-diffraction-limited focal spot and transform-limited pulse duration

C. Liu, S. Banerjee, J. Zhang, S. Chen, K. Brown, J. Mills, N. Powers, B. Zhao, G. Golovin, I. Ghebregziabher, and D. Umstadter

Proc. SPIE8599, Solid State Lasers XXII: Technology and Devices , 859919 (2013)

MeV-energy X rays from inverse Compton scattering with laser-wakefield accelerated electrons

S. Chen, N. D. Powers, I. Ghebregziabher, C. M. Maharjan, C. Liu, G. Golovin, S. Banerjee, J. Zhang, N. Cunningham, A. Moorti, S. Clarke, S. Pozzi, and D. Umstadter

Physical Review Letters 110, 155003 (2013)

Stable, tunable, quasimonoenergetic electron beams produced in a laser wakefield near the threshold for self-injuction

S. Banerjee, S. Y. Kalmykov, N. D. Powers, G. Golovin, V. Ramanathan, N. J. Cunningham, K. J. Brown, S. Chen, I Ghebregziabher, B. A. Shadwick, D. Umstadter, B. M. Cowan, D. L. Bruhwiler, A. Beck, and E. Lefebvre

Physical Review ST Accelerators and Beams 16, 031302 (2013)

Quasi-monoenergetic and tunable X-rays from a laser-driven Compton light source

N. D. Powers, I. Ghebregziabher, G. Golovin, C. Liu, S. Chen, S. Banerjee, J. Zhang, and D. Umstadter

Nature Photonics 8, 28-31 (2013)

Computationally efficient methods for modeling laser wakefield acceleration in the blowout regime

B. M. Cowan, S. Y. Kalmykov, A. Beck, X. Davoine, K. Bunkers, A. F. Lifschitz, E. Lefebvre, D. L. Bruhwiler, B. A. Shadwick, and D. Umstadter

Journal of Plasma Physics 78, 469-482 (2012)

Viewpoint: Extreme X rays probe extreme matter

D. Umstadter

Physics 5, 88 (2012)

Generation of tunable, 100-800 MeV quasi-monoenergetic electron beams from a laser-wakefield accelerator in the blowout regime

S. Banerjee, N. D. Powers, V. Ramanathan, I. Ghebregziabher, K. Brown, C. M. Maharjan, S. Chen, A. Beck, E. Lefebvre, S. Y. Kalmykov, B. A. Shadwick, and D. Umstadter

Phys. Plasmas 19, 056703 (2012)

Laser-wakefield accelerators: Glass-guiding benefits

D. Umstadter

Nature Photonics 5, 576-577 (2011)

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, B. A. Shadwick, and D. Umstadter

Phys. Plasmas 18, 056704 (2011)

Submillimeter-resolution radiography of shielded structures with laser-accelerated electron beams

V. Ramanathan, S. Banerjee, N. Powers, N. Cunningham, N. A. Chandler-Smith, K. Zhao, K. Brown, and D. Umstadter

Physical Review ST Accelerators and Beams 13, 104701 (2010)

Stable, monoenergetic 50-400 MeV electron beams with a matched laser wakefield accelerator

S. Banerjee, N. Powers, V. Ramanathan, B. Shadwick, and D. Umstadter

Proceedings of the PAC09, A14 Advance Concepts , 1-3 (2009)

High-energy laser-accelerated electron beams for long-range interrogation

N. Cunningham, S. Banerjee, V. Ramanathan, N. Powers, N. Chandler-Smith, R. Vane, D. Schultz, S. Pozzi, S. Clarke, J. Beene, and D. Umstadter

CP1099, Application of Accelerators in Research and Industry: 20th International Conference , 638-642 (2009)

Development of a source of quasi-monoenergetic MeV-energy photons for detection of special nuclear materials

D. Umstadter, S. Banerjee, V. Ramanathan, N. Powers, N. Cunningham, and N. Chandler-Smith

CP1099, Conference on the Application of Accelerators in Research and Industry, 20th International Conference , 606-609 (2009)

Photonuclear physics: Laser splits atom

D. Umstadter

Nature 404, 239 (2009) Download PDF

Measurement of damage threshold for metallic gratings under intense laser pulse irradiation

S. Baghchi, S. Banerjee, J. Zhang, V. Ramanathan, N. A, Chandler-Smith, and D. Umstadter

Conference on Lasers and Electro-Optics/International Quantum Electronics Conference , paperJThE51 (2009)

High-brightness, stable electron beams from a laser wakefield accelerator opening in the matched regime

S. Banerjee, N. Powers, V. Ramanathan, N. Chandler-Smith, K. Zhao, B. A. Shadwick, and D. Umstadter

Conference on Lasers and Electro-Optics/International Quantum Electronics Conference , paperJFB2 (2009)

Laser-plasma generated electron beams for radiographic applications

V. Ramanathan, S. Banerjee, N. Powers, K. Zhao, N. Cunningham, N. Chandler-Smith, and D. Umstadter

Conference on Lasers and Electro-Optics/International Quantum Electronics Conference , paperJFB6 (2009)

Application of a laser-wakefield driven monochromatic photon source to nuclear resonance fluorescence

W. J. Walsh, S. D. Clarke, S. A. Pozzi, N. Cunningham, S. Banerjee, and D. Umstadter

Proceedings of the Conference on Technologies for Homeland Security, 2009 IEEE Nuclear Science Symposium Conference Record , 80-85 (2009)

Monte Carlo characterization of a pulsed laser-wakefield driven monochromatic X-ray source

S. D. Clarke, S. A. Pozzi, N. Cunningham, S. Banerjee, and D. Umstadter

Proceedings of the Conference on Technologies for Homeland Security, 2009 IEEE Nuclear Science Symposium Conference Record , 1998-2003 (2009)

All-laser-driven, MeV-energy X-ray source for detection of SNM

S. Banerjee, N. Powers, V. Ramanathan, N. Cunningham, N. Chandler-Smith, S. Chen, B. Shadwick, and D. Umstadter

Conference on Technologies for Homeland Security, 08 , 1-6 (2008)

Analytical solutions for the electromagnetic fields of flattened and annular Gaussian laser modes. III. Arbitrary length pulses

S. M. Sepke, and D. Umstadter

Journal of the Optical Society of America B 23, 2295-2302 (2006)

Analytical solutions for the electromagnetic fields of flattened and annular Gaussian laser modes. I. Small F-number laser focus

S. M. Sepke, and D. Umstadter

Journal of the Optical Society of America B 23, 2157-2165 (2006)

Analytical solutions for the electromagnetic fields of tightly focused laser beams of arbitrary pulse length

S. M. Sepke, and D. Umstadter

Optics Letters 31, 2589-2591 (2006)

Exact analytical solution for the vector electromagnetic field of Gaussian, flattened Gaussian, and annular Gaussian laser modes

S. M. Sepke, and D. Umstadter

Optics Letters 31, 1447-1449 (2006)

Observation of relativistic cross-phase modulation in high-intensity laser-plasma interactions

S. Chen, M. Rever, P. Zhang, W. Theobald, and D. Umstadter

Physical Review E 74, 046406 (2006)

Analytical solutions for the electromagnetic fields of flattened and annular Gaussian laser modes. II Large F-number laser focus

S. M. Sepke, and D. Umstadter

Journal of the Optical Society of America B 23, 2166-2173 (2006)

Einstein's impact on optics at the frontier

D. Umstadter

Physics Letters A 347, 121-132 (2005)

Thomson scattering and ponderomotive intermodulation within standing laser beat waves in plasma

S. Sepke, Y. Y. Lau, J. P. Holloway, and D. Umstadter

Physical Review E 72, 026501 (2005)

Laser based synchrotron raditation

K. T. Phuoc, F. Burgy, J. P. Rousseau, V. Malka, A. Rousse, R. Shah, D. Umstadter, A. Pukhov, and S. Kiselev

Phys. Plasmas 12, 023101 (2005)

Relativistic nonlinear optics

D. Umstadter, S. Sepke, and S. Chen

Advances in Atomic, Molecular, and Optical Physics 52, (2005)

Optical deflection and temporal characterization of an ultrafast laser-produced electron beam

S. Banerjee, S. Sepke, R. Shah, A. Valenzuela, A. Maksimchuk, and D, Umstadter

Physical Review Letters 95, 035004 (2005)

Simulation of ultrashort electron pulse generation from optical injection into wake-field plasma waves

E. S. Dodd, J. K. Kim, and D. Umstadter

Physical Review E 70, 056410 (2004)

Production of a keV X-ray beam from synchrotron radiation in relativistic laser-plasma interaction

A. Rousse, K. T. Phuoc, R. Shah, A. Pukhov, E. Lefebvre, V. Malka, S. Kiselev, F. Burgy, J. P. Rousseau, D. Umstadter, and D. Hulin

Physical Review Letters 93, 135005 (2004)

Relativistic nonlinear optics

D. Umstadter

Encyclopedia of Modern Optics , 289 (2004)

Plasma density gratings induced by intersecting laser pulses in underdense plasmas

Z. M. Sheng, J. Zhang, and D. Umstadter

Applied Physics B 77, 673-680 (2003)

Nonlinear Thomson scattering: A tutorial

Y. Y. Lau, F. He, D. Umstadter, and R. Kowalczyk

Phys. Plasmas 10, 2155-2162 (2003)

An optical trap for relativistic plasma

P. Zhang, N. Saleh, S. Chen, Z. Sheng, and D. Umstadter

Phys. Plasmas 10, 2093-2099 (2003)

Laser-driven x-ray sources

D. Umstadter

2003 Yearbook in Science and Technology , 215 (2003)

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 D. Umstadter

AIP Conf. Proc. 647, 690-700 (2003)

High-energy ion generation by short laser pulses

A. Maksimchuk, K. Flippo, H. Krause, G. Mourou, K. Nemoto, D. Schultz, D. Umstadter, R. Vane, V. Yu. Bychenkov, G. I. Dudnikova, V. F. Kovalev, K. Mima, V. N. Novikov, Y. Sentoku, and S. V. Tolokonnikov

Plasma Physics Report 30, 473-495 (2003)

Developments in relativistic nonlinear optics

D. Umstadter, S. Banerjee, S. Chen, E. Dodd, K. Flippo, A. Maksimchuk, N. Saleh, A. Valenzuela, and P. Zhang

AIP Conf. Proc. 611, 95-103 (2003)

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 D. Umstadter

Physical Review Letters 91, 225001 (2003)

Laser-injected laser accelerator concept

D. Umstadter

Femtosecond Beam Science , (2003)

X-ray radiation from nonlinear Thomson scattering of an intense femtosecond laser on relativistic electrons in a helium plasma

K. T. Phuoc, A. Rousse, M. Pittman, J. P. Rousseau, V. Malka, S. Fritzler, D. Umstadter, and D. Hulin

Physical Review Letters 91, 195001 (2003)

Backscattering of an intense laser beam by an electron

F. He, Y. Y. Lau, D. Umstadter, and R. Kowalczyk

Physical Review Letters 90, 055002 (2003)

Topical review: Relativistic laser-plasma interactions

D. Umstadter

Journal of Physics D: Applied Physics 36, R151-R165 (2003)

High-harmonic generation in plasmas from relativistic laser-electron scattering

S. Banerjee, A. R. Valenzuela, R. C. Shah, A. Maksimchuk, and D. Umstadter

Journal of the Optical Society of America B 20, 182-190 (2003)

Generation of mega-electron-volt electron beams by an ultrafast intense laser pulse

X. Wang, N. Saleh, M. Krishnan, H. Wang, S. Backus, M. Murname, H, Kapteyn, D. Umstadter, Q. Wang, and B. Shen

Journal of the Optical Society of America B 20, 132-137 (2003)

High harmonic generation in relativistic laser-plasma interaction

S. Banerjee, A. R. Valenzuela, R. C. Shah, A. Maksimchuk, and D. Umstadter

Phys. Plasmas 9, 2393-2398 (2002)

Extreme Light

G. Mourou and D. Umstadter

Scientific American , 81-86 (2002)

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 D. Umstadter

Applied Physics B 74, 207-215 (2002)

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 D. Umstadter

AIP Conf. Proc. 647, 255-264 (2002)

Phase dependence of Thomson scattering in an ultraintense laser field

F. He, Y. Y. Lau, D. Umstadter, and T. Strickler

Phys. Plasmas 9, 4325-4329 (2002) Download PDF

Coherent control of stimulated Raman scattering using chirped laser pulses

E. S. Dodd and D. Umstadter

Phys. Plasmas 8, 3531-3534 (2001)

Laser-triggered ion acceleration and table top isotope production

K. Nemeto, A. Maksimchuk, S. Banerjee, K. Flippo, G. Mourou, D. Umstadter, and V. Yu. Bychenkov

Applied Physics Letters 78, 595-597 (2001)

Laser acceleration of protons from thin film targets

K. Flippo, S. Banerjee, V. Yu. Bychenkov, S. Gu, A. Maksimchuk, G. Mourou, K. Nemeto, and D. Umstadter

AIP Conf. Proc. 569, 553-562 (2001)

Physics and applications of relativistic plasmas driven by ultra-intense lasers

D. Umstadter

Phys. Plasmas 8, 1774-1785 (2001) Download PDF

Status of the LILAC experiment

N. Saleh, P. Han, C. Keppel, P. Gueye, V. Yanovsky, and D. Umstadter

AIP Conf. Proc. 569, 127-135 (2001)

Fast ignitor concept with light ions

V. Yu. Bychenkov, W. Rozmus, A. Maksimchuk, D. Umstadter, and C. Capjack

Plasma Physics Report 27, 1017-1020 (2001) Download PDF

Observation of phase-matched relativistic harmonic generation

S. Y. Chen, A. Maksimchuk, E. Esarey, and D. Umstadter

Physical Review Letters 84, 5528-5531 (2000)

Electron acceleration and the propagation of ultrashort high-intensity laser pulses in plasmas

X. Wang, M. Krishnan, N. Saleh, H. Wang, and D. Umstadter

Physical Review Letters 84, 5324-5327 (2000)

Forward ion acceleration in thin films driven by a high-intensity laser

A. Maksimchuk, S. Gu, K. Flippo, D. Umstadter, and V. Yu. Bychenkov

Physical Review Letters 84, 4108-4111 (2000)

Dense and relativistic plasmas produced by compact high-intensity lasers

D. Umstadter, S. Y. chen, G. Ma, A. Maksimchuk, G. Mourou, M. Nantel, S. Pikuz, G. Sarkisov, and R. Wagner

The Astrophysical Journal Supplement Series 127, 513-518 (2000)

Excitation and damping of a self-modulated laser wakefield

S. Y. Chen, M. Krishnan, A. Maksimchuk, and D. Umstadter

Phys. Plasmas 7, 403-413 (2000)

X-Ray radiation from ions with K-shell vacancies

F. Rosmej, U. Funk, M. Geißel, D. Hoffmann, A. Tauschwitz, A. Faenov, T. Pikuz, I. Skobelev, F. Flora, S. Bollanti, P. Lazzaro, T. Letardi, A. Grilli, L. Palladino, A. Reale, G. Tomassetti, A. Scafati, L. Reale, T. Auguste, P. D'Oliveira, S. Hulin, P. Monot, A. Maksimchuk, S. Pikuz, D. Umstadter, M. Nantel, R. Bock, M. Dornik, M. Stetter, S. Stöwe, V. Yakushev, M. Kulisch, and N. Shilkin

Journal of Quantitative Spectroscopy & Radiative Transfer 65, 477-499 (2000)

X-ray radiation from matter in extreme conditions

A. Maksimchuk, M. Nantel, G. Ma, S. Gu, C. Y. Côte, D. Umstadter, S. A. Pikuz, I. Yu. Skobelev, and A. Ya. Faenov

Journal of Quantitative Spectroscopy & Radiative Transfer 65, 367-385 (2000)

Pulse radiolysis of liquid water using picosecond electron pulses produced by a table-top terawatt laser system

N. Saleh, K. Flippo, K. Nemoto, D. Umstadter, R. A. Crowell, C. D. Jonah, and A. D. Trifunac

Review of Scientific Instrument 71, 2305-2308 (2000)

High-resolved X-ray spectra of hollow atoms in a femtosecond laser-produced solid plasma

A. Ya. Faenov, A. I. Magunov. T. A. Pikuz, I. Yu. Skobelev, S. A. Pikuz, A. M. Urnov, J. Abdallah, R. E. H. Clark, J. Cohen, R. P. Jonson, G. A. Kyrala, M. D. Wilke, A. Maksimchuk, D. Umstadter, N. Nantel, R. Doron, E. Behar, P. Mandelbaum, J. J. Schwob, J. Dubau, F. B. Rosmej, and A. Osterheld

Physica Scripta T80, 536-538 (1999)

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 D. Umstadter

Phys. Plasmas 6, 4739-4749 (1999)

Electron beam characteristics of a laser-driven plasma wakefield accelerator

K. A. Assamagan, W. W. Buck, S. Y. Chen, R. Ent, R. N. Green, P. Gueye, C. Keppel, G. Mourou, D. Umstadter, and R. Wagner

Nuclear Instruments and Methods in Physics Research Section A 438, 265-276 (1999)

Self-focusing, channel formation, and high energy ion generation in interaction of an intense short laser pulse with a He jet

G. S. Sarkisov, V. Yu. Bychenkov, V. N. Novikov, V. T. Tikhonchuk, A. Maksimchuk, S. Y. Chen, R. Wagner, G. Mourou, and D. Umstadter

Physical Review E 59, 7042-7054 (1999)

Acceleration of electrons in a self-modulated laser wakefield

S. Chen, M. Krishnan, A. Maksimchuk, and D. Umstadter

Advanced Accelerator Concepts: Eighth Workshop 472, 333 (1999)

Cold relativistic wavebreaking threshold of two-dimensional plasma waves

J. Kim and D. Umstadter

Advanced Accelerator Concepts: Eighth Workshop 472, 404 (1999)

Electron injection by dephasing electrons with laser fields

E. Dodd, J. Kim, and D. Umstadter

Advanced Accelerator Concepts: Eighth Workshop 472, 886 (1999)

Experimental observation of nonlinear Thomson scattering

S. Chen, A. Maksimchuk, and D. Umstadter

Nature 396, 653-655 (1998)

Nonlinear optics in relativistic plasmas

D. Umstadter, S. Chen, R. Wagner, A. Maksimchuk, and G. Sarkisov

Optics Express 2, 282-288 (1998)

Pressure ionization and line-merging in strongly-coupled plasmas produced by 100-fs laser pulses

M. Nantel, G. Ma, S. Gu, C. Cote, J. Itatani, and D. Umstadter

Physical Review Letters 80, 4442-4445 (1998)

Evolution of a plasma waveguide created during relativistic-ponderomotive self-channeling of an intense laser pulse

S. Chen, G. Sarkisov, A. Maksimchuk, R. Wagner, and D. Umstadter

Physical Review Letters 80, 2610-2613 (1998)

Electron acceleration by a laser wakefield in a relativistically self-guided channel

R. Wagner, S. Chen, A. Maksimchuk, and D. Umstadter

Physical Review Letters 78, 3125-3128 (1997)

Electron acceleration by self-modulated laser wakefield in a relativistically self-guided channel

S. Chen, R. Wagner, A. Maksimchuk, and D. Umstadter

Advanced Accelerator Concepts , 408-416 (1997) Download PDF

Temporal characterization of a self-modulated laser wakefield

S. Le Blanc, M. Downer, R. Wagner, S. Chen, A. Maksimchuk, G. Mourou, and D. Umstadter

Advanced Accelerator Concepts , 651 (1997)

Ultrashort-pulse relativistic electron gun/accelerator

E. Dodd, J. Kim, and D. Umstadter

Advanced Accelerator Concepts , 106-115 (1997) Download PDF

Continuum lowering in 100-fs laser produced plasmas

M. Nantel, T. Buma, S. Gu, J. Workman, A. Maksimchuk, and D. Umstadter

Applications of High Field and Short Wavelength Sources VII , 23 (1997)

All-optical femtosecond electron acceleration

J. Kim, E. Dodd, & D. Umstadter

Applications of High Field and Short Wavelength Sources VII , 121 (1997)

Relativistically self-guided laser-wakefield acceleration

R. Wagner, S. Chen, A. Maksimchuk, and D. Umstadter

Applications of High Field and Short Wavelength Sources VII , 171-178 (1997)

Temporal characterization of plasma wakefields driven by intense femtosecond laser pulses

S. Le Blanc, M. Downer, T. Tajima, C. Siders, R. Wagner, S. Chen, A. Maksimchuk, G. Mourou, and D. Umstadter

Applications of High Field and Short Wavelength Sources VII , 240 (1997)

Observation of the plasma channel dynamics and coulomb explosion in interaction of high-intensity laser pulse with He gas jet

G. Sarkisov, V. Bychenkov, T. Tikhonchuk, A. Maksimchuk, S. Chen, R. Wagner, G. Mourou, and D. Umstadter

JETP-Letters 66, 828-834 (1997)

Laser acceleration of electrons: Zero to c in less than ten microns

D. Umstadter

New Modes of Particle Acceleration Techniques and Sources , 89-94 (1997) Download PDF

Observation of laser satellites in a plasma produced by a femtosecond laser pulse

S. Pikuz, A. Maksimchuk, D. Umstadter, M. Nantel, I. Yu. Skobelev, A. Ya. Faenov, and A. Osterheld

JETP-Letters 66, 480-486 (1997)

Temporal characterization of a self-modulated laser wakefield accelerator

S. Le Blanc, M. Downer, R. Wagner, S. Chen, A. Maksimchuk, G. Mourou, and D. Umstadter

Conference on Lasers and Electro-Optics 11, 313 (1997) Download PDF

Application of a picosecond X-ray source to time-resolved plasma dynamics

J. Workman, M. Nantel, A. Maksimchuk, and D. Umstadter

Applied Physics Letters 70, 312-314 (1997)

An ultrashort-duration relativistic electron beam accelerated by an intense laser

D. Umstadter

Quantum Electronics and Laser Sciense (CLEO/QELS '97) Conference 11, 300 (1997) Download PDF

Nonlinear optics in relativistic plasmas and laser wakefield accleration of electrons

D. Umstadter, S. Chen, A. Maksimchuk, G. Mourou, and R. Wagner

Science 273, 472 (1996) Download PDF

Laser injection of ultrashort electron pulses into wakefield plasma waves

D. Umstadter, J. K. Kim, and E. Dodd

Physical Review Letters 76, 2073-2076 (1996) Download PDF

Enhancement of short-pulse recombination-pumped gain by soft-X-ray photoionization of the ground state

J. Apruzese and D. Umstadter

Journal of the Optical Society of America B 13, 443-446 (1996) Download PDF

Picosecond soft X-ray source from subpicosecond-laser-produced plasmas

J. Workman, A. Maksimchuk, X. Liu, U. Ellenberger, J. Coe, C. Chien, and D. Umstadter

Journal of the Optical Society of America B 13, 125 (1996) Download PDF

Signal averaging X-ray streak camera with picosecond jitter

A. Maksimchuk, X. Liu, J. Workman, G. Korn, J. Squier, D. Du, D. Umstadter, G. Mourou, and M. Bouvier

Review of Scientific Instrument 67, 697-699 (1996) Download PDF

Terawatt lasers: Probing unique material properties with novel diagnostic sources

D. Umstadter

Digest IEEE/Lasers and Electro-Optics Society Summer Topical Meeting on Advanced Applications of Lasers in Materials and Processing, Broadband Optical Networks - Enabling Technologies and Applications; Smart Pixesl; Optical MEMs and their Applications , 32-33 (1996)

A collimated beam of MeV electrons accelerated by a terawatt laser

R. Wagner, S. Chen, A. Maksimchuk, E. Dodd, J. Kim, and D. Umstadter

Quantum Electronics and Laser Science Conference 10, 70 (1996)

Temporal characterization of a self-modulated laser wakefield

S. Le Blanc, M. Downer, R. Wagner, S. Chen, A. Maksimchuk, G. Mourou, and D. Umstadter

Physical Review Letters 77, 5381-5384 (1996) Download PDF

Electron acceleration by nonlinear plasma waves resonantly driven with optimized high-intensity pulse trains

D. Umstadter, J. Kim, E. Esarey, E. Dodd, and T. Neubert

Future of Accelerator Physics: The Tamura Symposium , 270-300 (1996)

Terawatt lasers produce faster electron acceleration

D. Umstadter

Laser Focus World , 101 (1996)

Resonantly driven laser-plasma electron accelerators

D. Umstadter, J. Kim, E. Esarey, E. Dodd, and T. Neubert

Advanced Accelerator Concepts , 551-573 (1995)

Picosecond X-rays from subpicosecond laser-produced hot-dense matter interactions

D. Umstadter, J. Workman, A. Maksimchuk, X. Liu, U. Ellenberger, J. Coe, and C. Chien

Journal of Quantitative Spectroscopy & Radiative Transfer 54, 401-411 (1995) Download PDF

Control of bright picosecond X-ray emission from intense sub-picosecond laser-plasma interactions

J. Workman, A. Maksimchuk, X. Liu, U. Ellenberger, J. S. Coe, C.-Y. Chien, and D. Umstadter

Physical Review Letters 75, 2324-2327 (1995) Download PDF

Resonant laser-driven plasma waves for electron acceleration

D. Umstadter, J. Kim, E. Esarey, E. Dodd and T. Neubert

Physical Review Letters 51, 3484 (1995) Download PDF

Nonlinear temporal diffraction and frequency shifts resulting from pulse shaping in chirped-pulse amplification systems

X. Liu, R. Wagner, A. Maksimchuk, E. Goodman, J. Workman, D. Umstadter and A. Migus

Optics Letters 20, 1163-1165 (1995) Download PDF

Temporal diffraction in a chirped-pulse amplification system

X. Liu, R. Wagner, A. Maksimchuk, E. Goodman, J. Workman, D. Umstadter and A. Migus

CLEO `95, Conference on Lasers and Electro-Optics , 427 (1995)

Bright ultrashort X-rays from intense subpicosecond laser-plasma interactions

D. Umstadter

International Conference on Plasma Science , 171 (1995)

Nonlinear plasma waves resonantly driven by optimized laser pulse trains

D. Umstadter, E. Esarey, and J. Kim

Physical Review Letters 72, 1224-1227 (1994) Download PDF

Ultrashort ultraviolet free-electron lasers

D. Umstadter, L. Yu, D. Li, and E. Johnson

Journal of X-Ray Science and Technology 4, 263-274 (1994)

Femtosecond free-electron laser by chirped pulse amplification

L. Yu, E. Johnson, D. Li, and D. Umstadter

Physical Review E 49, 4480-4486 (1994) Download PDF

Electron acceleration by nonlinear plasma waves resonantly driven with optimized high-intensity pulse trains

D. Umstadter, J. Kim, E. Esarey, E. Dodd, and T. Neubert

The Future of Accelerator Physics , 270-300 (1994)

Bright picosecond X-rays from sub-picosecond laser-plasma interactions

A. Maksimchuk, J. Workman, X. Liu, U. Ellenberger, J. Coe, C. Chien, and D. Umstadter

X-Ray Lasers , 473-477 (1994)

Laser-produced picosecond soft X-ray continuum radiation

D. Umstadter, J. Workman, A. Maksimchuk, X. Liu, C. Chien, and S. Coe

Proceedings of LASERS '93 , 165 (1994)

Resonant laser-plasma electron acceleration

D. Umstadter, E. Esarey, and J. Kim

Laser Interaction and Related Plasma Phenomena , 65-66 (1994)

Harmonic generation by an intense laser pulse in neutral and ionized gases

X. Liu, D. Umstadter, E. Esarey, and A. Ting

IEEE Transactions on Plasma Science 21, 90-94 (1993) Download PDF

Nonlinear analysis of relativistic harmonic generation by intense lasers in plasmas

E. Esarey, A. Ting, P. Sprangle, D. Umstadter, and X. Liu

IEEE Transactions on Plasma Science 21, 95-104 (1993) Download PDF

A 100 MeV proof-of-principle laser wakefield accelerator experiment

A. Ting, A. Fisher, R. Fischer, J. Grun, J. Krall, E. Esarey, P. Sprangle, D. Umstadter, and G. Mourou

Proceedings of International Conference on Particle Accelerators , 17-20 (1993)

Femtosecond dynamics of short-scale-length laser plasmas

X. Liu and D. Umstadter

Short-Pulse High-Intensity Lasers and Applications II , 103-109 (1993)

Intense ultrashort-pulse laser-solid interactions for soft X-ray generation

D. Umstadter, X. Liu, and J. Workman

Short-Pulse High-Intensity Lasers and Applications II , 80 (1993)

Development and applications of compact high-intensity lasers

G. Mourou and D. Umstadter

Phys. Fluids B 4, 2315-2325 (1992) Download PDF

Competition between ponderomotive and thermal pressures in short-scale-length laser-plasmas

X. Liu and D. Umstadter

Physical Review Letters 69, 1935-1938 (1992) Download PDF

Self-guiding of intense short-pulse lasers for long plasma channel production

D. Umstadter and X. Liu

Advanced Accelerator Concepts , 450 (1992)