Acta Optica Sinica, Volume. 31, Issue 10, 1005006(2011)
Guided-Mode Resonance Filter with Narrow Waveband for Three Primary Colors
A guided-mode resonant filter (GMRF) based on the structure of anti-reflection (AR) thin film waveguide is proposed to realize three-primary-color filter with narrow-band. The proposed grating consists of three parts: a sub-wave grating, a waveguide and a substrate. The effects of sub-wave grating and thickness of waveguide on the GMRF reflection spectrum are investigated in detail with the method of rigorous coupled-wave analysis (RCWA). Simulation results show that the structure of λ/4-λ/2-λ/4 can improve the performance of GRMF effectively. When the grating layer is located near the substrate, the cut-off band of the optimized filter for red, green and blue primary colors are 447, 349 and 279 nm, respectively. The reflectance is above 95% and reflection bands are all narrower than 0.2 nm. The optimized GMRF shows excellent performance with narrow band and can be useful for color synthesis and modulation.
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Kong Weijin, Zheng Bingbin, Yun Maojin, Kuang Jie, Wang Shuhao, Xu Jiafeng. Guided-Mode Resonance Filter with Narrow Waveband for Three Primary Colors[J]. Acta Optica Sinica, 2011, 31(10): 1005006
Category: Diffraction and Gratings
Received: Apr. 22, 2011
Accepted: --
Published Online: Aug. 29, 2011
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