超高斯强激光在等离子体中传播的自聚焦

journal6 ›› 2004, Vol. 25 ›› Issue (2): 48-50.

超高斯强激光在等离子体中传播的自聚焦

（吉首大学物理与电子工程系，湖南吉首 416000）

出版日期:2004-06-15 发布日期:2012-11-06
作者简介:叶伏秋(1967-)，男，湖南省益阳市人，吉首大学物理与电子工程系讲师，主要从事光学与激光技术研究.

Self- Focusing of Ultra- Intensity Super- Gaussian Beams Propagating in the Plasmas

(Department of Physics and Electronic Engineering,Jishou University,Jishou 416000,Hunan China)

Online:2004-06-15 Published:2012-11-06

摘要/Abstract

摘要：通过数值求解非线性近轴波方程, 研究了在等离子体中传输的超高斯强激光的自聚焦行为. 结果表明, 自聚焦形成的环在初始光束受到扰动时出现环分裂的现象, 同时由于自由电子的散焦作用, 使得自聚焦环被限制在某一特征尺度内.

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关键词： 等离子体, 自聚焦, 克尔效应, 超高斯光束

Abstract: The behavior of self- focusing of the ultra- intensity rotation symmetric super- Gaussian beam ( RSSGB) during propagation in the plasmas is studied, with the aid of the numerical solution to the nonlinear paraxial wave equation.The result implies for a RSSGB with initial undulations, the self- focusing ring may split after traveling certain distance inside the plasmas. And because of the effect of the defocusing free- electron, the self- focusing ring is limited within a certain scales.

Key words: plasmas, self- focus;Kerr effect, super- Gaussian beam

中图分类号:

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叶伏秋. 超高斯强激光在等离子体中传播的自聚焦[J]. journal6, 2004, 25(2): 48-50.

YE Fu-Qiu. Self- Focusing of Ultra- Intensity Super- Gaussian Beams Propagating in the Plasmas[J]. journal6, 2004, 25(2): 48-50.

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