双光束对高能电子的捕获特性  

Electron trapping by two parallel-propagating intense laser beams

作　　者：王加祥[1,2] 任娜[1] 李安康[1] 李桂波[1] 

机构地区：[1]华东师范大学,物理系,理论物理研究所,精密光谱科学和技术国家重点实验室,上海200241 [2]中国工程物理研究院,流体物理研究所,冲击波与爆轰物理重点实验室,四川绵阳621900

出　　处：《强激光与粒子束》2010年第12期3003-3006,共4页High Power Laser and Particle Beams

基　　金：上海市曙光人才计划项目(06sg27);上海市浦江人才计划项目(07pj14036);国家自然科学基金项目(10974056)

摘　　要：为了在实验上增强非线性强场效应的信号强度,基于电子在强激光束上的非弹性散射,提出一种双光束捕获电子的方案,目的是通过延长电子和强场相互作用时间来提高非线性过程发生总概率,实现观测信号的增强。数值模拟结果表明,捕获后的电子和强激光场的相互作用时间可延长10倍以上。In order to enhance the signal of the weak nonlinear strong-field phenomenon induced by free electron interaction with intense laser fields, a scheme to trap the high-energy electrons by two parallel-propagating laser beams has been proposed. The mechanism is based upon the electron inelastic scattering by intense laser beams, i. e., when the electron passes the first beam with greatly reduced transverse momentum, it will not have enough momentum to pass the second beam and thus be trapped between the two beams.

关 键 词：双光束 高能电子 光束捕获 laser beams 相互作用时间 非线性过程 非弹性散射 增强 信号强度 强激光束 强激光场 强非线性 强场效应 模拟结果 观测信号 数值 实验 概率 方案 

分 类 号：O4[理学—物理]