Presented By: Applied Physics
Applied Physics Seminar | Plasma wakefield acceleration of light
Alexander Thomas, Ph.D., Professor of Nuclear Engineering and Radiological Sciences, Professor of Electrical Engineering and Computer Science, College of Engineering and Professor of Physics, College of Literature, Science, and the Arts, University of Mic
Abstract:
Bright, coherent extreme ultraviolet (XUV) light has many important applications across the sciences. Frequency upshifting of an optical laser pulse in the co-moving
refractive index gradient of a relativistic phase-velocity plasma wave is one method for producing short wavelengths at high intensity. Beam-driven plasma wakefields can
generate arbitrarily high frequency-upshifts of `relativistically intense' light pulses and preserve their spatio-polarization structure. We present some recent theoretical
advancements in understanding photon kinetics in plasma wakes. Ab-initio quasi-3D, boosted-frame electromagnetic particle-in-cell simulations show the formation of
attosecond duration XUV light with 30-nm wavelengths, nearly flat phase fronts and high pulse-energy. The use of such XUV laser light in laser-beam collisions at 50 GeV
energies would enable studies of the most extreme regimes of strong field QED at the onset of the fully non-perturbative regime.
Bright, coherent extreme ultraviolet (XUV) light has many important applications across the sciences. Frequency upshifting of an optical laser pulse in the co-moving
refractive index gradient of a relativistic phase-velocity plasma wave is one method for producing short wavelengths at high intensity. Beam-driven plasma wakefields can
generate arbitrarily high frequency-upshifts of `relativistically intense' light pulses and preserve their spatio-polarization structure. We present some recent theoretical
advancements in understanding photon kinetics in plasma wakes. Ab-initio quasi-3D, boosted-frame electromagnetic particle-in-cell simulations show the formation of
attosecond duration XUV light with 30-nm wavelengths, nearly flat phase fronts and high pulse-energy. The use of such XUV laser light in laser-beam collisions at 50 GeV
energies would enable studies of the most extreme regimes of strong field QED at the onset of the fully non-perturbative regime.
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