Construction and Simulation Verification of Polarization Calibration Model for Focal Plane Visible Light Polarization Detector Based on Division

Le résumé fourni par la source

To address the issue of polarization measurement accuracy in sub-aperture plane visible light detectors, and to enhance the polarization measurement accuracy of sub-aperture plane polarization visible light detectors, an in-depth study was conducted on the construction of polarization calibration models for sub-aperture plane visible light polarization detectors, analysis of factors affecting polarization measurement accuracy, and their simulation verification. First, based on the structural characteristics and measurement principles of sub-aperture plane visible light polarization detectors, a more complete and accurate polarization calibration model was established. Second, focusing on the constructed polarization calibration model, the impact of parameters such as relative transmittance, polarization azimuth angle, photoelectric conversion coefficient, and dark current on the detector's polarization measurement accuracy was analyzed, and quantitative simulation analysis and verification were performed. The results indicate that the impact of relative transmittance, polarization azimuth angle error, and dark current error on polarization error shows an approximate linear growth trend, while errors in the photoelectric conversion coefficient may lead to minor deviations in polarization degree. This paper provides a solid theoretical foundation for error correction of sub-aperture plane polarization visible light detectors, aiming to improve the accuracy and stability of the detectors.

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