Temperature tuning of the stop band in transmission spectra of liquid-crystal infiltrated synthetic opal as tunable photonic crystal

被引：327

作者：

Yoshino, K ^{[1
]}

Shimoda, Y ^{[1
]}

Kawagishi, Y ^{[1
]}

Nakayama, K ^{[1
]}

Ozaki, M ^{[1
]}

机构：

[1] Osaka Univ, Grad Sch Engn, Dept Elect Engn, Osaka 5650871, Japan

来源：

APPLIED PHYSICS LETTERS | 1999年 / 75卷 / 07期

关键词：

D O I：

10.1063/1.124558

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Nematic liquid crystals and smectic liquid crystals can be infiltrated into a three-dimensional periodic array of interconnected nanosize voids in opal films prepared by sedimentation of SiO2 spheres of various diameters. The optical stop band in the transmission spectra of opals shifts drastically by the infiltration of liquid crystals. The stop band is also found to shift at the phase transition points with changing temperature. This effect enables the tuning of optical properties of opals as a prototype tunable photonic crystal. This phenomenon can also be used as a measurement method for the refractive index. (C) 1999 American Institute of Physics. [S0003-6951(99)01733-7].

引用

页码：932 / 934

页数：3

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