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A polarization-dependent reflective color filter with grating-based Sb2S3 phase-change material

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Abstract

This paper presents a reflective tunable color filter based on employing an antimony trisulfide (Sb2S3) grating structure. The design generates two different colors when illuminated by either one of two orthogonally polarized incident lights. Moreover, by adjusting the phase of the material, the resonances can be tuned, enabling the generation of different colors. This design offers a simple platform capable of generating four distinct colors across the visible spectrum.

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Conference Name: 2024 IEEE International Symposium on Antennas and Propagation and INC/USNCURSI Radio Science Meeting, AP-S/INC-USNC-URSI 2024
Date of Conference: 14-19 July 2024

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