P. A. Grant

TL;DR: It is shown that 1–100 J pump pulses can amplify picojoule seed pulses to nearly joule level, and the extremely high gain leads to significant amplification of backscattered radiation from “noise”, arising from stochastic plasma fluctuations that competes with externally injected seed pulses.

TL;DR: It is shown experimentally and through numerical simulations that a high-energy electron beam is produced simultaneously with two stable lower-energy beams that are ejected in oblique and counter-propagating directions, typically carrying off 5–10% of the initial laser energy.

TL;DR: In this paper, the authors explored ways of converting laser radiation into coherent electromagnetic radiation using laser-driven plasma waves, including colliding laser pulses in magnetized plasma and utilizing ultra-short electron bunches from laser wakefield accelerators to produce intense singlecycle pulses through coherent transition radiation and few-cycle coherent synchrotron radiation in undulators and plasma channels.

TL;DR: The Advanced Laser-Plasma High-Energy Accelerators towards X-rays (ALPHA-X) program is developing laserplasma accelerators for the production of ultra-short electron bunches with subsequent generation of coherent, bright, short-wavelength radiation pulses as mentioned in this paper.

TL;DR: In this paper, the authors present an experimental and numerical study of the properties of wide-angle electron beams, and show that they carry off a significant fraction of the energy transferred from the laser to the plasma.