Effects of Relativistic and Ponderomotive Nonlinearities on an Intense Laser Pulse Propagation in a Plasma Channel

被引：4
|
作者：
Liu Ming-Ping [1 ,2 ]
Zheng Zhen [3 ]
Liu San-Qiu [3 ]
Dai Wei-Hua [1 ]
Liu Jie [4 ]
机构：
[1] Nanchang Univ, Coll Informat Engn, Nanchang 330031, Peoples R China
[2] Beijing Normal Univ, Minist Educ, Key Lab Beam Technol & Mat Modificat, Beijing 100875, Peoples R China
[3] Nanchang Univ, Dept Phys, Nanchang 330047, Peoples R China
[4] Inst Appl Phys & Computat Math, Beijing 100088, Peoples R China
来源：
COMMUNICATIONS IN THEORETICAL PHYSICS | 2012年 / 58卷 / 04期
基金：
中国国家自然科学基金;
关键词：
relativistic nonlinearity; ponderomotive nonlinearity; plasma channel; ELECTRON-BEAMS; WAKEFIELD ACCELERATOR; GENERATION;
D O I：
10.1088/0253-6102/58/4/21
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The optical guiding of a moderately intense laser pulse in a parabolic preformed plasma channel is analyzed by means of the variational method. Relativistic, ponderomotive and their coupling nonlinearities are included. The conditions for periodic defocusing and focusing, as well as constant spot size propagation are given. It is found that the laser focusing is released by the coupling of relativistic and ponderomotive nonlinearities.
引用
收藏
页码：569 / 572
页数：4
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