Jean-Philippe Goddet

TL;DR: In this paper, the authors demonstrate a Compton-based electromagnetic source based on a laser-plasma accelerator and a plasma mirror, which generates a broadband spectrum of X-rays and is 10,000 times brighter than Compton X-ray sources based on conventional accelerators.

TL;DR: In this paper, the authors present wide-band spectral measurements of coherent transition radiation which they use for temporal characterization and show that the electron beam, produced using controlled optical injection, contains a temporal feature that can be identified as a 15 pC, 1.4-1.8 fs electron bunch (root mean square) leading to a peak current of 3-4 kA depending on the bunch shape.

TL;DR: This work demonstrates a reduction of the divergence by nearly a factor of three, which should allow for an efficient coupling of the beam with a conventional beam transport line.

TL;DR: It is shown that betatron radiation from relativistic laser−plasma interaction combines ideal features for femtosecond XAS, and the great potential of the table-top betatron source is demonstrated which makes possible the investigation of unexplored ultrafast processes in manifold fields of research.

TL;DR: This work proposes to manipulate the phase of the electron beam in the wakefield, in order to bring the beam back into the accelerating region, hence increasing the final beam energy.