Journal Article

FZJ-2019-05603

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Polarized electron-beam acceleration driven by vortex laser pulses

Wu, Y. ; Ji, L. ; Geng, X. ; Yu, Q. ; Wang, N. ; Feng, B. ; Guo, Z. ; Wang, W. ; Qin, C. ; Yan, X. ; Zhang, L. ; Thomas, J. ; Hützen, A.FZJ* ; Büscher, M.FZJ* ; Rakitzis, T. P. ; Pukhov, A. ; Shen, B. ; Li, R. (Corresponding author)

2019
IOP73379 [London]

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Please use a persistent id in citations: http://hdl.handle.net/2128/23454  doi:10.1088/1367-2630/ab2fd7

Abstract: 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.

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Contributing Institute(s):

1. Elektronische Eigenschaften (PGI-6)

Research Program(s):

1. 522 - Controlling Spin-Based Phenomena (POF3-522) (POF3-522)

Appears in the scientific report 2019

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Database coverage:
; ; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; DOAJ Seal ; Ebsco Academic Search ; IF < 5 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Web of Science Core Collection

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