SIDE-BAND INSTABILITIES IN FREE-ELECTRON LASERS

被引：13
|
作者：
ROSENBLUTH, MN
WONG, HV
MOORE, BN
机构：
[1] Institute for Fusion Studies, University of Texas at Austin, Austin
来源：
PHYSICS OF FLUIDS B-PLASMA PHYSICS | 1990年 / 2卷 / 07期
关键词：
D O I：
10.1063/1.859489
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：
The linear stability of sideband modes for a one-dimensional free electron laser is investigated in detail. The dependence on wiggler taper, slippage between optical pulse and electrons, and trapped electron distribution functions are included in the analysis. Nyquist plots are used to delineate the parameter space in which sideband instabilities occur and approximate analytic expressions for the linear growth rate are derived. In special cases a complete analytic solution is given. Essentially all equilibria are unstable to sideband growth. The linear growth rates agree well with numerical simulations. © 1990 American Institute of Physics.
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页码：1635 / 1653
页数：19
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