Characteristics of spatial heterodyne spectroscopy for polarization measurement

APPLIED OPTICS(2023)

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摘要
In this paper, a spatial static polarization modulation interference spectrum technique is proposed, which com-bines polarimetric spectral intensity modulation (PSIM) technology and spatial heterodyne spectroscopy (SHS), and can obtain the total Stokes parameters of the target light simultaneously. Moreover, there are no moving parts or electronically controlled modulation parts. In this paper, the mathematical model of the modulation process and demodulation process of spatial static polarization modulation interference spectroscopy is deduced, a com-puter simulation is carried out, the principle prototype is developed, and a verification experiment is carried out. Simulation and experimental results show that the combination of PSIM and SHS can achieve high-precision static synchronous measurement of high spectral resolution, high time resolution, and continuous band complete polarization information.(c) 2023 Optica Publishing Group
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