【摘要】 从动力学方程出发 ,引入有效碰撞 ,讨论了碰撞对受激Raman散射线性增长率的影响 .结果表明 ,碰撞阻尼和Landau阻尼使得受激Raman散射线性增长率有了实质性的下降 ,受激Raman散射只能发生在电子温度和电子密度平面的一个有限区域 .现在的理论模型能够解释受激Raman散射光谱上存在的“缝”(gap)现象 .更多还原

【Abstract】 Starting from kinetic equations,we discussed stimulated Raman scattering(SRS)by including both Landau damping(LD) and the collisional damping(CD).It was found t hat the linear growth rate of SRS is reduced substantially due to LD and CD.SRS can occur only for a region determined by both electron temperature and density. Gap in the spectrum corresponding to Raman scattering can be explained by the pr esent model.更多还原