对非线性康普顿散射几种改进物理模型的比较  

Comparison of different improvements to mainstream model of nonlinear Compton scattering

作　　者：张博[1] 张智猛[1] 周维民[1] Zhang Bo;Zhang Zhimeng;Zhou Weimin(Laser Fusion Research Center,CAEP,Mianyang 621900,China)

机构地区：[1]中国工程物理研究院激光聚变研究中心等离子体物理重点实验室,四川绵阳621900

出　　处：《强激光与粒子束》2023年第1期79-88,共10页High Power Laser and Particle Beams

基　　金：国家自然科学基金项目(11805181);国家重点研发项目(2018YFA0404804);科学挑战计划项目(TZ2016005)。

摘　　要：非线性康普顿散射被认为是未来超短超强激光与物质相互作用中的主导性物理过程之一。目前大多数相关研究都基于一种主流的非线性康普顿散射物理模型,该模型假设辐射形成距离足够短、对初态和末态自旋求平均与求和、并忽略了参与散射的激光光子的能动量。近年来,一些研究为了在更广阔的参数空间内,更准确地描述非线性康普顿散射,也对这个主流物理模型提出了几种修正和改进。回顾了对非线性康普顿散射主流物理模型进行的几种改进和修正,介绍了它们的适用范围,分析了它们的基本性质并对其物理效应进行了简单讨论。Nonlinear Compton scattering is one of the dominant processes in future ultra-short ultra-intense laser-matter interactions.Today,most related researches are based on the mainstream model of nonlinear Compton scattering,which assumes short radiation formation interval,ignores effects of involved laser photon energy and is not spin-resolved.To depict nonlinear Compton scattering more precisely in wider parameter space,improved theories beyond these assumptions have been proposed in recent years.In this paper,we reviewe the major recent improvements,analyze their applicability,discusse their basic characteristics and physical effects on nonlinear Compton scatterings.

关 键 词：非线性康普顿散射 偏振 相干激光光子的能动量 相干长度 量子加速 

分 类 号：TN241[电子电信—物理电子学]