In the present work, we performed a combination of non-sequential ray tracing and numerical interferometric simulations to study the effect of the most important optical and experimental parameters on the performance of spatial heterodyne interferometric spectrometers, relevant to their use in laser-induced breakdown spectroscopy (spatial heterodyne laser-induced breakdown spectroscopy, SH-LIBS). We provide a detailed, numerical assessment of the spectral bandpass, tuning characteristics, spectral resolution, sensitivity and temporal gating achievable in such an instrument. These modeling results can pave the way for the construction of improved SH-LIBS spectrometers for elemental sensing.

在目前的工作中，我们结合了非序列光线追踪和数值干涉模拟来研究最重要的光学和实验参数对空间外差干涉光谱仪性能的影响，这些参数与它们在激光诱导击穿光谱仪中的应用有关。 （空间外差激光诱导击穿光谱，SH-LIBS）。我们对这种仪器中可实现的光谱带通、调谐特性、光谱分辨率、灵敏度和时间门控进行了详细的数值评估。这些建模结果可以为构建用于元素传感的改进的 SH-LIBS 光谱仪铺平道路。