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

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 p...

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Bibliographic Details
Published in:理论物理通讯：英文版 2012, Vol.58 (10), p.569-572
Main Author: 刘明萍 郑振 刘三秋 戴伟华 刘杰
Format: Article
Language:English
Subjects:
动力非线性
变分方法
强激光脉冲
激光聚焦
相对论
离子通道
等离子体通道
非线性耦合
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Summary: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.
ISSN:0253-6102