All-Optical Steering of Laser-Wakefield-Accelerated Electron Beams
All-Optical Steering of Laser-Wakefield-Accelerated Electron Beams
复制标题
DOI：
10.1103/physrevlett.105.215001
复制
发表时间：
2010-11-16
影响因子：
8.6
通讯作者：
Karsch, S.
中科院分区：
文献类型：
--
作者：
Popp, A.;Vieira, J.;Karsch, S.
本文研究了倾斜的激光脉冲强度波前对激光尾流场加速的影响。这种不对称的光脉冲可以被利用来获得对电子束团指向方向的控制，并且在我们的情况下，允许在相对于初始激光轴的8 mrad开口窗口内以全光学方式进行可再现的电子束转向。我们还发现了集体电子感应加速器振荡的证据，由于离轴电子注入到韦克菲尔德引起的脉冲前倾斜。这些发现得到了3D粒子模拟的支持。
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.