Self-action of a high-power 10-μm laser radiation in gases: control of the pulse duration and generation of hot electrons

被引：21

作者：

Gordienko, V. M. ^{[1
]}

Platonenko, V. T. ^{[1
]}

Sterzhantov, A. F. ^{[2
]}

机构：

[1] Moscow MV Lomonosov State Univ, Dept Phys, Moscow 119991, Russia

[2] Moscow MV Lomonosov State Univ, Ctr Int Laser, Moscow 119991, Russia

来源：

QUANTUM ELECTRONICS | 2009年 / 39卷 / 07期

基金：

俄罗斯基础研究基金会;

关键词：

filamentation; laser radiation self-action; pulse compression; hot electrons; AMPLIFICATION; OPTICS; O-2; N-2;

D O I：

10.1070/QE2009v039n07ABEH014090

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：

The propagation of ultrashort 10-mu m laser pulses of power exceeding the critical self-focusing power in xenon and air is numerically simulated. It is shown that the pulse duration in certain regimes in xenon can be decreased by 3-4 times simultaneously with the increase in the pulse power by 2-3 times. It is found that the average energy of electrons in a filament upon filamentation of 10-mu m laser pulses in air can exceed 200 eV. The features of the third harmonic and terahertz radiation generation upon filamentation are discussed.

引用

页码：663 / 668

页数：6

共 25 条

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