TY  - JOUR
AU  - Wu, Yitong
AU  - Ji, Liangliang
AU  - Geng, Xuesong
AU  - Yu, Qin
AU  - Wang, Nengwen
AU  - Feng, Bo
AU  - Guo, Zhao
AU  - Wang, Weiqing
AU  - Qin, Chengyu
AU  - Yan, Xue
AU  - Zhang, Lingang
AU  - Thomas, Johannes
AU  - Hützen, Anna
AU  - Büscher, Markus
AU  - Rakitzis, T Peter
AU  - Pukhov, Alexander
AU  - Shen, Baifei
AU  - Li, Ruxin
TI  - Polarized electron-beam acceleration driven by vortex laser pulses
JO  - New journal of physics
VL  - 21
IS  - 7
SN  - 1367-2630
CY  - [London]
PB  - IOP73379
M1  - FZJ-2019-05603
SP  - 073052 -
PY  - 2019
AB  - We propose a new approach based on an all-optical set-up for generating relativistic polarized electron beams via vortex Laguerre-Gaussian (LG) laser-driven wakefield acceleration. Using a pre-polarized gas target, we find that the topology of the vortex wakefield resolves the depolarization issue of the injected electrons. In full three-dimensional particle-in-cell simulations, incorporating the spin dynamics via the Thomas-Bargmann Michel Telegdi equation, the LG laser preserves the electron spin polarization by more than 80% while assuring efficient electron injection. The method releases the limit on beam flux for polarized electron acceleration and promises more than an order of magnitude boost in peak flux, as compared to Gaussian beams. These results suggest a promising table-top method to produce energetic polarized electron beams.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000477660100002
DO  - DOI:10.1088/1367-2630/ab2fd7
UR  - https://juser.fz-juelich.de/record/866513
ER  -