Model study on laser interaction with near-critical density plasma

被引：3

作者：

Luan, Shixia ^{[1
]}

Yu, Wei ^{[1
,2
]}

Xu, Wenwu ^{[3
]}

Murakami, Masakatsu ^{[2
]}

Zhuo, Hongbin ^{[4
]}

Wang, Jingwei ^{[1
,2
]}

Wang, Xin ^{[5
]}

Wu, Huichun ^{[6
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China

[2] Osaka Univ, Inst Laser Engn, Suita, Osaka 5650871, Japan

[3] Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China

[4] Natl Univ Def Technol, Coll Sci, Changsha 410073, Hunan, Peoples R China

[5] Rice Univ, Houston, TX 77005 USA

[6] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2012年 / 108卷 / 04期

关键词：

RELATIVISTIC ELECTROMAGNETIC SOLITONS; PULSE; ULTRASHORT; BEAMS;

D O I：

10.1007/s00340-012-5140-4

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The formation and evolution of laser-induced post-solitons in near-critical density plasma are studied using the two-dimensional theoretical model and particle in cell simulation. The study shows that a considerable part of laser energy can penetrate plasma, which is then trapped in an empty cavity bounded by overdense plasma peaks. The self-trapped electromagnetic fields remain as a half-cycle standing wave. The amplitude of these electromagnetic fields peaks at the cavity center and vanishes at the boundary. As the cavity expands slowly, the field amplitude decreases, and the oscillation frequency is reduced to merely a small faction of laser frequency.

引用

页码：875 / 882

页数：8

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