Abstract

Angular sensitivities for color filters incorporating three typical metalized resonant gratings are discussed by rigorous coupled wave analysis. The transmissions at normal incidence for three color filters have the same resonant wavelengths although they demonstrate different transmission characteristics. To figure out the physical originations of these resonant wavelengths, the amplitude distributions of the electric field are analyzed. For different resonant wavelengths of the same structure, the less different the origination is, the wider the angular tolerance will be, which is verified by the transmission intensities in the band diagram and the transmission spectra at different incident angles.

© 2015 Optical Society of America

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