Paper
24 July 2018 Polarization-dependent wide angle reflective filter based on the micro-cavity incorporating a nano-grating
Author Affiliations +
Proceedings Volume 10827, Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018); 108273A (2018) https://doi.org/10.1117/12.2501215
Event: Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018), 2018, Shanghai, China
Abstract
A reflective color filter based on the micro-cavity incorporating a nanostructure is proposed, which consists of a nano-metallic grating, a dielectric layer and an aluminum (Al) film. By varying the duty cycle of the metallic grating, red, green and blue (RGB) colors can be obtained for the transverse electric (TE) polarized incidence, having a good angular tolerance up to 30°. While these structures show different colors for transverse magnetic (TM) polarized light, and the color difference caused by polarization changes with the duty cycle chosen in different range. Therefore, the proposed structure demonstrates distinct reflections with different duty cycles, which can be utilized for reflective color displays as well as anti-counterfeiting devices.
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Fengchuan Xu, Shangliang Wu, Yan Ye, Yu Gu, Yishen Xu, and Linsen Chen "Polarization-dependent wide angle reflective filter based on the micro-cavity incorporating a nano-grating", Proc. SPIE 10827, Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018), 108273A (24 July 2018); https://doi.org/10.1117/12.2501215
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KEYWORDS
Dielectric polarization

Optical filters

Reflectivity

Aluminum

Polymethylmethacrylate

Reflection

Tolerancing

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