渐变段倾角对渐变复合腔特性影响的分析  

Analysis on the characteristic of cold complex cavity with gradual transition of various obliquity

作　　者：喻胜[1] 李宏福[1] 牛新建[1] 

机构地区：[1]电子科技大学物理电子学院,成都610054

出　　处：《强激光与粒子束》2006年第5期859-861,共3页High Power Laser and Particle Beams

基　　金：国防科技基础研究基金资助课题

摘　　要：利用模式耦合理论,在考虑多模耦合的情况下,对渐变结构复合腔进行了冷腔分析,计算了H51-H52模式对下,各个模式的耦合及场幅值分布情况,分析了渐变段的倾角对渐变复合腔的Q值及场幅值分布的影响。研究表明:渐变段的倾角对渐变结构复合腔的高频特性有很大的影响,特别是各模式的场分布及Q值,合适地选择渐变角度,能使场幅值放大率比较大,这将有利于提高注-波互作用效率。Based on the theory of mode-coupling, an analysis on cold complex cavity with gradual transition is presented, in which the multiple modes coupling are taken into account. The influences of the obliquity of taper section coupling on the axial field amplitude profile and the Q value of this complex cavity are analyzed. Theoretical analysis and simulation indicate that choosing suitable obliquity can ensure good amplitude magnification which helps to improve the efficiency of beam-wave interaction.

关 键 词：渐变结构复合腔 渐变段倾角 Q值 模式耦合 

分 类 号：TN129[电子电信—物理电子学]