摘要
自由电子激光的小型化和实现激光短波长一直是自由电子激光领域的研究热点 ,而短周期、强场摇摆器是解决此问题的行之有效的途径。文章分析了利用等离子体尾波场作为自由电子激光摇摆器的机制 ,推得自由电子的自发辐射谱 ,利用麦迪定理和天线阵列理论求得了电子的受激辐射公式 。
WT5”BZ]:The compact and the short wavelenghth FEL was the study highlight in this field,The wiggler with the short wiggler period and the strong electromagnetic field is a effective way to solve these problems.In this paper,We analyse the mechanism of plasma wave field wiggler,The angular spectrum of spontaneous emission from relativistic electrons is derived.Furthermore,resorting to the Madey theorem and the theory about phased antennaarray,we enhance the formula of stimulated emission and the small singal gain of FEL is calculated in this kind of wiggler. [WT5”HZ]
出处
《光电子．激光》
EI
CAS
CSCD
2000年第1期69-71,共3页
Journal of Optoelectronics·Laser
关键词
自由电子激光
摇摆器
等离子体尾波场
WT5”BZ]:FEL
spontaneous emission
stimulted radiation
gain of small singal
wiggler
