Abstract
The basic principle of the tempo-spatially modulated polarization interference imaging spectrometer (TSMPIIS) is expounded in this paper. Using the electric vector method, the exact expression of TSMPIIS's optical throughput changing with the incident angle i, the polarized orientation angles θ and ϕ, together with the transmittances Toe and Teo is calculated. Furthermore, the effects of various parameters on the optical throughput are analyzed and discussed by computer simulations, and some important conclusions are obtained. In order to obtain a high value of the optical throughput, the incident angle is controlled in a small range, and the optimal values of the polarized orientation angles θ and ϕ are chosen as 0°. This work provides a theoretical and practical guidance for improving the optical throughput of the tempo-spatially modulated polarization interference imaging spectrometer along with its engineering realization.
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