受激喇曼散射中三波相位的时间发展对振幅的影响

EFFECTS OF THE TEMPORAL EVOLUTION OF THE PHASES OF THREE COUPLED WAVES ON THEIR AMPLITUDES IN STIMULATED RAMAN SCATTERING

一、引 言 近年来,等离子体中的受激喇曼散射引起人们广泛注意。我们知道,在激光聚变实验中,由于受激喇曼散射而导致的高能电子会预热靶心,从而大大地减小激光对靶的压缩效率。此外,在实现激光加速带电粒子的众多方案中被认为是最有前途的等离子体拍频波加速器(Plasma Beat-Wave Accelerator)。

Stimulated Raman scattering in an infinite homogeneous plasma is studied. It is shown that in stimulated Raman scattering the cyclic behavior of the amplitudes of the pump, scattered, and electron plasma craves is closely related to the evolution of their relative phases.