摘要
相干谐波储存环自由电子激光的相干增强因子正比于光学速调管自发辐射谱调制率的平方，加深光学速调管自发辐射谱的调制是相干谐波储存环自由电子激光研究的重要一环．介绍在中国科学技术大学８００ＭｅＶ电子储存环上所进行的加深光学速调管自发辐射谱调制的研究工作，调制率已从０．２３６提高到了０．８０，为相干谐波产生实验奠定了基础。
The ratio between the coherent and incoherent densities of a coherent harmonic generation FEL is proportional to the square of the modulation rate of the spontaneous emission spectrum of its optical klystron. Therefore enhancing the modulation of the spontaneous emission spectrum of an optical klystron is important for coherent harmonic generation. A coherent harmonic generation experiment is under way on the 800MeV electron storage ring at University of Science and Technology of China. A modulation rate of 0.8 of the spontaneous emission spectrum of an optical klystron has been obtained. This paper reports the measurement and enhancement of the modulation rate.
出处
《高能物理与核物理》
EI
CSCD
北大核心
2000年第1期77-81,共5页
High Energy Physics and Nuclear Physics
基金
国家863激光技术领域
高校博士点基金
关键词
储存环自由电子激光
光学速调管
自发辐射谱调制
coherent harmonic generation FEL, optical klystron, modulation rate of spontaneous emission
