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.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
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
关键词
渐变结构复合腔
渐变段倾角
Q值
模式耦合
Complex cavity with gradual transition
Obliquity of taper section
Q value
Mode-coupling
