外文题目: Generation of gamma-ray beam with orbital angular momentum in the QED regime
作者: Liu, Chen; Shen, Baifei; Zhang, Xiaomei; Shi, Yin; Ji, Liangliang; Wang, Wenpeng; Yi, Longqing; Zhang, Lingang; Xu, Tongjun; Pei, Zhikun; Xu, Zhizhan
刊名: Phys. Plasmas
年: 2016 卷: 23 期: 9 文章编号：93120
英文关键词:

LAGUERRE-GAUSSIAN LASER; ELECTRON VORTEX BEAMS; LIGHT; PHOTONS; PHYSICS; TWIST
英文摘要:
We propose a scheme to generate high-energy gamma-ray photons with an orbital angular momentum (OAM) from laser-plasma interactions by irradiating a circularly polarized Laguerre-Gaussian laser on a thin plasma target. The spin angular momentum and OAM are first transferred to electrons from the driving laser, and then the OAM is transferred to the gamma-ray photons from the electrons through quantum radiation. This scheme has been demonstrated by using three-dimensional quantum electrodynamics particle-in-cell simulations. The topological charge, chirality, and carrier-envelope phase of the short ultra-intense vortex laser can be revealed according to the energy distribution of gamma-ray emission. Published by AIP Publishing.


文献类型: 期刊论文
正文语种: English
收录类别: SCIEI
DOI: 10.1063/1.4963396


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