Title :
Silicon subwavelength gratings for reflective color filters with wide viewing angle
Author :
Ozaki, Takashi ; Kanamori, Yoshiaki ; Hane, Kazuhiro
Author_Institution :
Dept. of Nanomech., Tohoku Univ., Sendai, Japan
Abstract :
We designed and fabricated three primary color filters using structural color by subwavelength gratings. They are expected to be applied to devices such as displays. Fabricated red, green and blue filters have pitches of 400, 340 and 300 nm, and peak reflectivities of 0.8, 0.55 and 0.5, respectively. They also have wide viewing angle of 50 deg when the incident light is s-polarized.
Keywords :
diffraction gratings; light polarisation; optical filters; reflectivity; silicon; light polarisation; reflective color filters; reflectivity; silicon subwavelength gratings; structural color; viewing angle; Color; Gratings; Image color analysis; Optical filters; Optical reflection; Optical variables measurement; Silicon; color filters; silicon on quartz; structural color; subwavelength gratings; viewing angle;
Conference_Titel :
Optical MEMS and Nanophotonics (OMN), 2011 International Conference on
Conference_Location :
Istanbul
Print_ISBN :
978-1-4577-0334-8
DOI :
10.1109/OMEMS.2011.6031094
