产生激光等离子体二次谐波辐射的动力学过程

Dynamic process of the Second Harmonic Emission in Laser-Produced Plasmas

本文首先通过能量守恒和矢量匹配关系分析了产生激光等离子体二次谐波辐射的动力学过程,在此基础上又考虑到Langmuir波的谱基本上反映了二次谐波的谱,于是导出了Langmuir波的运动方程。由数值Fourier分析,求得光谱形状,其结果与实验较为一致。

In terms of the energy conservation and vector matching relations, the dynamicprocess of the second harmonic emission from a laser plasma has first been analyzed inthis article. Then, considering the Langmuir wave spectrum which reflects the secondlharmonic spectrum, we derived the kinetic equation of the Langmuir wave.A fter numericaFourier analyses, the spectrum proliles are obtained, which coincide with the experimenson the whole.