Influence of acceleration on relativistic nonlinear Thomson scattering in tightly focused linearly polarized laser pulses  

作　　者：常一凡 王禹博 王畅 申雨婷 田友伟 Yifan Chang;Yubo Wang;Chang Wang;Yuting Shen;Youwei Tian(College of Science,Nanjing University of Posts and Telecommunications,Nanjing 210023,China;Bell Honors School,Nanjing University of Posts and Telecommunications,Nanjing 210023,China)

机构地区：[1]College of Science,Nanjing University of Posts and Telecommunications,Nanjing 210023,China [2]Bell Honors School,Nanjing University of Posts and Telecommunications,Nanjing 210023,China

出　　处：《Chinese Physics B》2023年第6期203-212,共10页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.10947170/A05 and 11104291);Natural Science Fund for Colleges and Universities in Jiangsu Province(Grant No.10KJB140006);Natural Sciences Foundation of Shanghai(Grant No.11ZR1441300);Natural Science Foundation of Nanjing University of Posts and Telecommunications(Grant No.NY221098);sponsored by the Jiangsu Qing Lan Project and STITP Project(Grant No.XYB2013012)。

摘　　要：The influence of acceleration of electrons on relativistic nonlinear Thomson scattering in tightly focused linearly polarized laser pulses is investigated for the first time. In the framework of classical electrodynamics, it is deduced and found that the more severe the change in the electron transverse acceleration, the stronger the asymmetry of the radiation angle distribution, and the greater the transverse acceleration, the greater the radiation energy. Tightly focused, ultrashort,and high-intensity lasers lead to violent electron acceleration processes, resulting in a bifurcated radiation structure with asymmetry and higher energy. Additionally, a change in the initial phase of the laser brings about periodic change of the acceleration, which in turn makes the radiation change periodically with the initial phase. In other cases, the radiation is in a symmetrical double-peak structure. These phenomena will help us to modulate radiation with more energy collimation.

关 键 词：transverse acceleration relativistic nonlinear Thomson scattering tightly focused radiation angle distribution 

分 类 号：TN249[电子电信—物理电子学] O436.2[机械工程—光学工程]