White-light channeled imaging polarimeter using Savart plates and a polarization Sagnac interferometer

A Stokes white-light channeled imaging polarimeter using Savart plates and a polarization Sagnac interferometer (IPSPPSI) is presented, which provides an effective solution to the problem of channel aliasing in broadband polarimeters. The expression for the light intensity distribution and a method...

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Bibliographic Details
Published in:Optics express 2023-05, Vol.31 (11), p.18177-18189
Main Authors: Chen, Jun, Li, Xiaotian, Jirigalantu, Jiri, Li, Fuguan, Chu, Qihang, Sun, Yuqi, Bayan, Heshig
Format: Article
Language:English
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Summary:A Stokes white-light channeled imaging polarimeter using Savart plates and a polarization Sagnac interferometer (IPSPPSI) is presented, which provides an effective solution to the problem of channel aliasing in broadband polarimeters. The expression for the light intensity distribution and a method to reconstruct polarization information are derived, and an example design for an IPSPPSI is given. The results reveal that a complete measurement of the Stokes parameters in broad band can be achieved with a snapshot on a single detector. The use of dispersive elements like gratings suppresses broadband carrier frequency dispersion so the channels in the frequency domain do not affect each other, ensuring the integrity of information coupled across the channels. Furthermore, the IPSPPSI has a compact structure and does not employ moving parts or require image registration. It shows great application potential in remote sensing, biological detection, and other fields.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.487423