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Customized depolarization spatial patterns with dynamic retardance functions
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DOI：10.1038/s41598-021-88515-x.png)
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Abstract
En 中文
In this work we demonstrate customized depolarization spatial patterns by imaging a dynamical time-dependent pixelated retarder. A proof-of-concept of the proposed method is presented, where a liquid-crystal spatial light modulator is used as a spatial retarder that emulates a controlled spatially variant depolarizing sample by addressing a time-dependent phase pattern. We apply an imaging Mueller polarimetric system based on a polarization camera to verify the effective depolarization effect. Experimental validation is provided by temporal integration on the detection system. The effective depolarizance results are fully described within a simple graphical approach which agrees with standard Mueller matrix decomposition methods. The potential of the method is discussed by means of three practical cases, which include non-reported depolarization spatial patterns, including exotic structures as a spirally shaped depolarization pattern.
Keywords:
CRYSTAL VARIABLE RETARDERS
LIQUID-CRYSTAL
MUELLER MATRICES
UTERINE CERVIX
POLARIZATION
GENERATION
STATE
REDUCTION
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