中国物理B ›› 2023, Vol. 32 ›› Issue (6): 63201-063201.doi: 10.1088/1674-1056/ac89e6

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

Yifan Chang(常一凡)1, Yubo Wang(王禹博)2, Chang Wang(王畅)1, Yuting Shen(申雨婷)1, and Youwei Tian(田友伟)1,†   

  1. 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
  • 收稿日期:2022-04-26 修回日期:2022-08-01 接受日期:2022-08-16 出版日期:2023-05-17 发布日期:2023-06-12
  • 通讯作者: Youwei Tian E-mail:tianyw@njupt.edu.cn
  • 基金资助:
    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), and Natural Science Foundation of Nanjing University of Posts and Telecommunications (Grant No. NY221098), and sponsored by the Jiangsu Qing Lan Project and STITP Project (Grant No. XYB2013012).

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

Yifan Chang(常一凡)1, Yubo Wang(王禹博)2, Chang Wang(王畅)1, Yuting Shen(申雨婷)1, and Youwei Tian(田友伟)1,†   

  1. 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
  • Received:2022-04-26 Revised:2022-08-01 Accepted:2022-08-16 Online:2023-05-17 Published:2023-06-12
  • Contact: Youwei Tian E-mail:tianyw@njupt.edu.cn
  • Supported by:
    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), and Natural Science Foundation of Nanjing University of Posts and Telecommunications (Grant No. NY221098), and sponsored by the Jiangsu Qing Lan Project and STITP Project (Grant No. XYB2013012).

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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

Abstract: 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.

Key words: transverse acceleration, relativistic nonlinear Thomson scattering, tightly focused, radiation angle distribution

中图分类号:  (Photoionization and excitation)

  • 32.80.-t
03.50.De (Classical electromagnetism, Maxwell equations) 41.60.Cr (Free-electron lasers) 42.50.Hz (Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift)