高速转镜干涉成像光谱仪的光程差分析

Optical Path Difference Analysis of Ultra-rapid-scanning Imaging Interferometer

针对一种新的高速转镜干涉成像光谱仪的工作原理,给出其光程差的计算方法及结果.通过设定相关参量,重新构建光程差方程,并给出光程差在不同参量情况下的计算结果图,比较不同参量的影响.给出的光程差方程,为高速转镜干涉成像光谱仪的设计及获得的光谱图复原提供参量依据.

A new method to deduce the optical path difference of a kind of ultra-rapid-scanning imaging spectrometer is provided. The process of the derivation is elaborated, and the ultimate formula is given. The formula of the optical path difference is recalculated by setting several related parameters. The curves of optical path difference are presented. They are given by changing one of those parameters with other parameters at fixed values. The contributions of the parameters is compared and discussed. The design of this kind of ultra-rapid-scanning imaging interferometer and the recovery of the interferogram to spectrogram should base on the optical path difference formula.