Tunable fall bandgap in a three-dimensional photonic crystal modulated by a nematic liquid crystal

被引：6

作者：

Liu, Chen-Yang

Chen, Lien-Wen

机构：

[1] Ind Technol Res Inst, Ctr Measurement Stand, Inst Technol Res Inst, Hsinchu, Taiwan

[2] Natl Cheng Kung Univ, Dept Mech Engn, Tainan 70101, Taiwan

来源：

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2006年 / 35卷 / 01期

关键词：

photonic bandgap; diamond lattice; liquid crystals;

D O I：

10.1016/j.physe.2006.07.028

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Photonic crystals (PCs) have many potential applications because of their ability to control light-wave propagation. We have investigated the tunable full bandgap in a three-dimensional PC structure modulated by a nematic liquid crystal (LC). Numerical simulations show that the band gaps can be continuously tuned in a diamond dielectric structure consisting of air spheres by infiltrating nematic LCs. Then we can control the full bandgap of a PC structure. We analyzed the variations of full gap by considering various index modulations of LCs. Such a mechanism of bandgap adjustment should open up a new application for designing components in photonic integrated circuits. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：173 / 177

页数：5

共 28 条

[1] Observation of light propagation in photonic crystal optical waveguides with bends [J].