All-Optical Steering of Laser-Wakefield-Accelerated Electron Beams

作者：Popp A; Vieira J; Osterhoff J; Major Zs; Hoerlein R; Fuchs M; Weingartner R; Rowlands Rees T P; Marti M; Fonseca R A; Martins S F; Silva L O; Hooker S M; Krausz F; Gruener F; Karsch S^*

来源：Physical Review Letters, 2010, 105(21): 215001.

DOI：10.1103/PhysRevLett.105.215001

We investigate the influence of a tilted laser-pulse-intensity front on laser-wakefield acceleration. Such asymmetric light pulses may be exploited to obtain control over the electron-bunch-pointing direction and in our case allowed for reproducible electron-beam steering in an all-optical way within an 8 mrad opening window with respect to the initial laser axis. We also discovered evidence of collective electron-betatron oscillations due to off-axis electron injection into the wakefield induced by a pulse-front tilt. These findings are supported by 3D particle-in-cell simulations.

• 出版日期2010-11-16