Generation of chirp-controllable circularly polarized terahertz radiation in magnetized plasma

被引：2

作者：

Jiao, Zhi-Hong ^{[1
,2
]}

Wei, Bo-Ning ^{[1
]}

Wang, Guo-Li ^{[1
,2
]}

Zhao, Song-Feng ^{[1
,2
]}

机构：

[1] Northwest Normal Univ, Coll Phys & Elect Engn, Lanzhou 730070, Peoples R China

[2] Key Lab Atom & Mol Phys & Funct Mat Gansu Prov, Lanzhou 730070, Peoples R China

来源：

LASER PHYSICS | 2021年 / 31卷 / 07期

基金：

中国国家自然科学基金;

关键词：

laser driver; chirped terahertz; circular polarization; magnetized plasma;

D O I：

10.1088/1555-6611/ac0344

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose a promising way to generate chirp-controllable circularly polarized terahertz waves from a magnetized Ar plasma driven by a linearly polarized laser. With an inhomogeneous static magnetic field, the local electrons are subjected to different strengths of the Lorentz force and emit terahertz waves with different cyclotron frequencies. In addition, the chirp rate and the temporal waveform of this chirped terahertz field can be adjusted by varying the gradient of the static magnetic field and the gas-density distribution.

引用

页数：7

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