Time-resolved spectra are often recorded in optical Thomson scattering experiments of laser-produced plasmas. In this article, the meaning of time-resolved spectrum output from a grating spectrometer is examined. Our results show that the recorded signal is indeed a convolution of the response function of the dispersion element and the product of the instant local dynamic form factor and electron density when the plasma evolves slowly; the plasma varies very little in the time duration of the scattering light passing through the scattering volume.

中文翻译：

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光栅光谱仪输出的时间分辨汤姆森散射光谱的含义

时间分辨光谱通常记录在激光产生的等离子体的光学Thomson散射实验中。在本文中，研究了从光栅光谱仪输出的时间分辨光谱的含义。我们的结果表明，记录的信号的确是色散元件响应函数与等离子缓慢演化时瞬时局部动态形状因子与电子密度的乘积的卷积。等离子体在通过散射体积的散射光的持续时间内变化很小。