Abstract

Full Stokes polarimetric images can be obtained from two acquisitions with a microgrid polarization camera equipped with a retarder. When the retardance is imperfectly known, it can be calibrated from the measurements, but this requires three image acquisitions and may cause divergence of estimation variance at a low signal-to-noise ratio. We determine closed-form equations allowing one to decide in which experimental conditions autocalibration is possible and useful, and to quantify the performance gain obtained in practice. These results are validated by real-world experiments.

© 2020 Optical Society of America

Precision of retardance autocalibration in full-Stokes division-of-focal-plane imaging polarimeters

François Goudail, Xiaobo Li, Matthieu Boffety, Stéphane Roussel, Tiegen Liu, and Haofeng Hu
Opt. Lett. 44(22) 5410-5413 (2019)

Theory of autocalibration feasibility and precision in full Stokes polarization imagers

Xiaobo Li, Benjamin Le Teurnier, Matthieu Boffety, Tiegen Liu, Haofeng Hu, and François Goudail
Opt. Express 28(10) 15268-15283 (2020)

Vortex retarder-based Stokes polarimeters: optimal data processing and autocalibration capability

Xiaobo Li and François Goudail
Opt. Lett. 49(7) 1696-1699 (2024)

Integration time optimization and starting angle autocalibration of full Stokes imagers based on a rotating retarder

Xiaobo Li, François Goudail, Pengfei Qi, Tiegen Liu, and Haofeng Hu
Opt. Express 29(6) 9494-9512 (2021)

On the optimal ways to perform full Stokes measurements with a linear division-of-focal-plane polarimetric imager and a retarder

Stéphane Roussel, Matthieu Boffety, and François Goudail
Opt. Lett. 44(11) 2927-2930 (2019)