A HAMILTONIAN MODEL OF FEL MANY-MODE DYNAMICS IN A HIGH-GAIN AMPLIFIER WITH A WAVE-GUIDE

被引：3

作者：

CASAGRANDE, F ^{[1
]}

CERCHIONI, G ^{[1
]}

机构：

[1] INST NAZL FIZ NUCL,I-20133 MILAN,ITALY

来源：

OPTICS COMMUNICATIONS | 1990年 / 79卷 / 05期

关键词：

D O I：

10.1016/0030-4018(90)90080-D

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Free Electron Laser dynamics is investigated in the presence of a rectangular waveguide for high-gain amplification of microwave radiation. Scale hamiltonian equations for the electrons and many radiation modes are derived in the steady-state Compton regime. In the relevant case of two-mode (TE01 + TE21) operation, the linear theory predicts the instability threshold of the system and explains basic effects of mode competition, such as higher peak powers, broader accessible energy ranges and reduced saturation lengths, compared with the amplification of the fundamental (TE01) mode alone. © 1990.

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页码：338 / 344

页数：7

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