Ring formation in self-focusing of electromagnetic beams in plasmas

被引：38

作者：

Faisal, M. ^{[1
]}

Mishra, S. K. ^{[1
]}

Verma, M. P. ^{[1
]}

Sodha, M. S. ^{[1
]}

机构：

[1] Univ Lucknow, Dept Educ Bldg, DST Project, Lucknow 226007, Uttar Pradesh, India

来源：

PHYSICS OF PLASMAS | 2007年 / 14卷 / 10期

关键词：

D O I：

10.1063/1.2774820

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

This article presents a paraxial theory of ring formation as an initially Gaussian beam propagates in a nonlinear plasma, characterized by significant collisional or ponderomotive nonlinearity. Regions in the axial irradiance-(beam width)(-2) space, for which the ring formation occurs and the paraxial theory is valid, have been characterized; for typical points in these regions the dependence of the beam width parameter and the radial distribution of irradiance on the distance has been specifically investigated and discussed. (C) 2007 American Institute of Physics.

引用

页数：6

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