Analytical Thomson backscattering spectra and new scaling laws in laser and magnetic fields

被引：1
|
作者：
Lv, Jianfeng [1 ,2 ,3 ]
Hu, Yiqing [3 ]
Xie, Baisong [1 ,2 ,4 ]
机构：
[1] Beijing Normal Univ, Key Lab Beam Technol, Minist Educ, Beijing 100875, Peoples R China
[2] Beijing Normal Univ, Coll Nucl Sci & Technol, Beijing 100875, Peoples R China
[3] Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China
[4] Beijing Radiat Ctr, Beijing 100875, Peoples R China
来源：
EPL | 2019年 / 127卷 / 05期
基金：
中国国家自然科学基金;
关键词：
HARMONIC-GENERATION; ELECTRON DYNAMICS; EMISSION SPECTRA; SCATTERING; LIGHT; INTENSITY;
D O I：
10.1209/0295-5075/127/54001
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The analytical asymptotic expression of Thomson backscattering spectra in arbitrarily polarized laser and uniform magnetic fields is given. It is used to theoretically analyze the spectra structures and properties. The results of asymptotic expression and numerical calculations show good agreement in the large harmonic-order region. The scaling laws about laser intensity and electron initial axial momentum are obtained. Furthermore, the optimal harmonic order corresponding to the maximum radiation intensity can be found, then new scaling laws about this optimal harmonic order with laser intensity and resonance parameter are revealed. Copyright (C) EPLA, 2019.
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页数：6
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