Wuppertal 2015 – scientific programme
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AKBP: Arbeitskreis Beschleunigerphysik
AKBP 14: Injectors, Lasers
AKBP 14.5: Talk
Thursday, March 12, 2015, 17:45–18:00, BZ.08.06 (HS 1)
Laser wavefront optimisation for laser-plasma acceleration — •Vincent Leroux1,2,3, Matthias Schnepp1,2, Spencer Jolly1,2,3, Buynghoon Kim1,2,3, Ji-Ping Zou4, and Andreas R. Maier1,2 — 1CFEL, Center for Free-Electron Laser Science, 22607 Hamburg — 2University of Hamburg, Institute of Experimental Physics, 22761 Hamburg — 3ELI Beamlines, 18221 Praha 8, Czech Republic — 4Laboratoire pour l'Utilisation des Lasers Intenses, CNRS, Ecole Polytechnique, Palaiseau, France
Laser-Plasma Wakefield Accelerators showed promising results in the past few years, generating high-energy electron beam over cm-distances. Nevertheless, the quality and shot-to-shot stability of such beams have not yet reached the level of conventional accelerators. One of the crucial factors is the driver laser beam quality, which need to be focused close to the diffraction limit. To achieve the highest electron beam quality, the laser wavefront has to be controlled via a closed loop including a deformable mirror and a wavefront sensor. Within the LAOLA collaboration between the University of Hamburg and DESY, the LUX beamline is developed to generate and study plasma-driven undulator radiation. It is driven by the commercial 200 TW ANGUS laser system which includes such adaptive optics. In this talk, I will present considerations on closed-loop wavefront control for enhanced beam quality in laser-plasma acceleration.