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Proceedings Paper

External control of guided resonance in photonic crystal slab by changing the index anisotropy of liquid crystal
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Paper Abstract

We demonstrate the light transmission characteristics in a photonic crystal (PC) slab with liquid crystal (LC) as an anisotropic medium. In PC slabs, the guided resonance occurs for normal incidence of light. In this study, we first fabricated a SiN PC slab without LC and observed this resonance. Also, we added an ellipticity to holes of the PC slab and observed a polarization filtering effect arising from the structural birefringence. Then, we filled the holes with LC. By making a phase transition in the LC, the resonant wavelength was tuned by maximally 33 nm. This will be applicable to surface-normal-type devices which control the transmission and polarization characteristics of light.

Paper Details

Date Published: 5 October 2006
PDF: 8 pages
Proc. SPIE 6352, Optoelectronic Materials and Devices, 63520R (5 October 2006); doi: 10.1117/12.691209
Show Author Affiliations
Naoko Inoue, Yokohama National Univ. (Japan)
Toshihiko Baba, Yokohama National Univ. (Japan)

Published in SPIE Proceedings Vol. 6352:
Optoelectronic Materials and Devices
Yong Hee Lee; Fumio Koyama; Yi Luo, Editor(s)

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