横向模谱方法的三维FEL振荡器的数值模拟  

3-D FEL OSCILLATOR SIMULATED BY THE TRANSVERSE MODE SPECTRAL METHOD

作　　者：王泰春[1] 王元璋[1] 张治畴[1] 

机构地区：[1]北京应用物理与计算数学研究所

出　　处：《强激光与粒子束》1995年第4期535-542,共8页High Power Laser and Particle Beams

摘　　要：用新的３－ＤＨＧＦＥＬ程序分别计算分析了无限长、有限长和短电子束微脉冲产生的自由电子激光的特性。在前两种情况下得到的结果与原有的３－ＤＯＳＩＦＥＬ程序计算得到的结果符合较好，而３－ＤＨＧＦＥＬ程序所用机时可大大缩短。在后一种情况下初步计算分析了北京自由电子激光器的光场演化特性。In this paper,we computed and analyzed behavior of FEL gener-ated for infinite, finite and short micropulse of electron beam by 3-D HGFEL code that we developed recently. Results obtained for the first two cases coincide with not only those obtained by 3-D OSIFEL code, but CPU time spent by 3-D HGFEL code is much less than that by 3-D OSIFEL code. We preliminarily computed and analyzed the evolution of Beijing FEL optical pulses for the last case.

关 键 词：自由电子激光振荡器 厄米-高斯摸 数值模拟 光场方程 电子方程组 横模特性分析 单波阵面 多波阵面 

分 类 号：TN753.2[电子电信—电路与系统]