Gamma-ray Vortex Burst in Nonlinear Thomson Scattering with Refocusing Spiral Plasma Mirror-Reference-Cited by-同舟云学术

Gamma-ray Vortex Burst in Nonlinear Thomson Scattering with Refocusing Spiral Plasma Mirror

Published:2023-01 Issue: Volume:3 Page:
ISSN:2097-0331
Container-title:Ultrafast Science
language:en
Short-container-title:Ultrafast Sci

Author:

Zhou Weijun¹²,Yan Wenchao¹²,Wang Jinguang³,Chen Liming¹²

Affiliation:

1. Key Laboratory for Laser Plasmas, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China.

2. Collaborative Innovation Center of IFSA, Shanghai Jiao Tong University, Shanghai 200240, China.

3. Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.

Abstract

The gamma-ray vortex burst in the nonlinear Thomson scattering when the laser wakefield accelerated electron bunch collides with an ultra-intense Laguerre–Gaussian laser that was reflected from the refocusing spiral plasma mirror. The orbit angular momentum of the scattering laser would be transferred to the gamma radiation through the scattering process. The 3-dimensional particle-in-cell simulations gave the electron dynamics in the scattering, which determines the characteristics of the vortical radiation. The radiation calculation results illustrated the burst of gamma-ray vortex and surprisingly revealed the radiation pattern distortion phenomenon due to the nonlinear effect. This scheme can not only simplify the experimental setup for the generation of twisted radiation but also boost the yield of vortical gamma photons. The peak brightness of the gamma-ray vortex was estimated to be 1 × 10 22 photons/s/mm 2 /mrad 2 /0.1% BW at 1 MeV, which might pave the way for the researches on angular momentum-related nuclear physics.

Publisher

American Association for the Advancement of Science (AAAS)

Link

https://spj.science.org/doi/pdf/10.34133/ultrafastscience.0005

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