Generation of a quasi-static magnetic field by a circularly polarised laser pulse due to tunnelling gas ionisation

被引：2
|
作者：
Gabdrakhmanov, I. M. [1 ]
Bychenkov, V. Yu [1 ,2 ]
机构：
[1] Russian Acad Sci, Lebedev Phys Inst, Leninsky Prosp 53, Moscow 119991, Russia
[2] Dukhov Automat Res Inst VNIIA, Ctr Fundamental & Appl Res, Ul Sushchevskaya 22, Moscow 127055, Russia
来源：
QUANTUM ELECTRONICS | 2020年 / 50卷 / 09期
基金：
俄罗斯基础研究基金会;
关键词：
quasi-static magnetic field; tunnelling gas ionisation; subrelativistic intensity; ultrashort laser pulses; PLASMA; SIMULATIONS; WAVES;
D O I：
10.1070/QEL17261
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We present a theoretical model of the quasi-static magnetic field generation in a laser channel, which is formed behind the front of a short laser pulse that ionises a gas. The generation of a magnetic field is caused by the appearance of the electron pressure anisotropy during tunnelling ionisation of atoms. In the considered case of subrelativistic laser light intensities, the generated magnetic field can reach similar to 1 MG with an energy transformation ratio of about 1%, which paves the way for identifying the proposed mechanism when use is made of a wide class of ultrashort pulse lasers.
引用
收藏
页码：838 / 843
页数：6
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