Tunable omnidirectional reflection bands and defect modes of a one-dimensional photonic band gap structure with liquid crystals

被引：92

作者：

Ha, YK ^{[1
]}

Yang, YC

Kim, JE

Park, HY

Kee, CS

Lim, H

Lee, JC

机构：

[1] Korea Adv Inst Sci & Technol, Dept Phys, Taejon 305701, South Korea

[2] Ajou Univ, Dept Mol Sci & Technol, Suwon 442749, South Korea

[3] Kwangju Inst Sci & Technol, Dept Informat & Commun, Kwangju 500712, South Korea

来源：

APPLIED PHYSICS LETTERS | 2001年 / 79卷 / 01期

关键词：

D O I：

10.1063/1.1381414

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have theoretically investigated the tunability of the omnidirectional reflection band (ORB) of a one-dimensional (1D) photonic crystal (PC) consisting of alternating isotropic dielectric and nematic liquid crystal layers by an external electric field. The width of the ORB becomes wide as the external voltage increases, but the center frequency is changed little. The frequency of the defect mode created by inserting a layer of liquid crystals into a 1D dielectric PC is also found to be tunable by the application of external voltage. These properties can be applied to tunable optical filters or optical switches. (C) 2001 American Institute of Physics.

引用

页码：15 / 17

页数：3

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