Plasma Bragg gratings generated by the interaction of two counter-propagating laser pulses with plasmas

被引：1

作者：

Luan Shi-Xia ^{[1
]}

Zhang Qiu-Ju ^{[1
]}

Gui Wei-Ling ^{[1
]}

机构：

[1] Shandong Normal Univ, Coll Phys & Elect, Jinan 250014, Peoples R China

来源：

ACTA PHYSICA SINICA | 2008年 / 57卷 / 11期

基金：

中国国家自然科学基金;

关键词：

plasma Bragg grating; electromagnetic soliton; counter-propagating laser pulses; particle-in-cell simulation;

D O I：

10.7498/aps.57.7030

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Solutions of electron and ion density gratings at the linear stage are given. Deep plasma gratings produced by the ponderomotive force of the interference of the two intersecting laser pulses are investigated. Dependence of the plasma grating on the plasma density, duration and intensity of the laser pulses are studied with ID particle-in-cell (PIC) simulation. It is found that the density of peaks of such gratings can be 8 times the initial plasma density and can last a few picoseconds. We have found stable, long-lifetime electromagnetic solitons by use of these gratings. It is shown that the intensity for the formation of relativistic EM solitons with two crossed-propagating pulses is reduced to a great extent.

引用

页码：7030 / 7037

页数：8

共 31 条

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