GINZBURG-LANDAU EQUATION - A NONLINEAR MODEL FOR THE RADIATION-FIELD OF A FREE-ELECTRON LASER

被引：21

作者：

CAI, SY

BHATTACHARJEE, A

机构：

[1] Department of Applied Physics, Columbia University, New York

来源：

PHYSICAL REVIEW A | 1991年 / 43卷 / 12期

关键词：

D O I：

10.1103/PhysRevA.43.6934

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

It is shown that the nonlinear dynamics of the radiation field in a free-electron laser can be modeled by the Ginzburg-Landau equation. The refractive index of the electron beam in the nonlinear regime and the saturation intensity of the radiation field are obtained from WKB theory. Although the Ginzburg-Landau equation does not permit soliton solutions, it is shown that certain types of solitary-wave solutions have a strong resemblance to spikes observed in simulations and experiments.

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页码：6934 / 6938

页数：5

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