4 November 2016 Angular sensitivity for a Fabry-Perot structure incorporating different dielectric materials
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Color filters based on different Fabry-Perot structures are investigated extensively, and incident angle dependency is an important characteristic in practical applications. Here, we investigated a color filter incorporating a Fabry-Perot structure, discussing its reflective angular sensitivity related to refractive index of its dielectric material. By finite difference time domain(FDTD) theory, the refractive index of the dielectric material is found to influence the angular sensitivity greatly while the optical thickness keeps constant. The simulated results shows that the higher the dielectric layer’s refractive index is, the more angular insensitive of the reflection will be obtained and a good angular insensitive will achieved when the refractive index is larger than 2.1. Finally, samples with different dielectric layer are fabricated in experiment and the measured results verify influence of the refractive index of dielectric layer on the spectra angular sensitivity, which is helpful for the application of color filter in color display, image sensors and decoration.
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Shangliang Wu, Shangliang Wu, Yan Ye, Yan Ye, Yun Zhou, Yun Zhou, Wenbin Huang, Wenbin Huang, Yanhua Liu, Yanhua Liu, Wen Qiao, Wen Qiao, Yanyan Wang, Yanyan Wang, Minghui Luo, Minghui Luo, Linsen Chen, Linsen Chen, } "Angular sensitivity for a Fabry-Perot structure incorporating different dielectric materials", Proc. SPIE 10027, Nanophotonics and Micro/Nano Optics III, 1002718 (4 November 2016); doi: 10.1117/12.2245123; https://doi.org/10.1117/12.2245123

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