Design of tunable terahertz photonic crystal narrow-band filters

被引：4

作者：

Zhang H. ^{[1
]}

Bai J.-J. ^{[1
]}

Guo P. ^{[1
]}

Wang X.-H. ^{[1
]}

Chang S.-J. ^{[1
]}

机构：

[1] Institute of Modern Optics, Nankai University

来源：

Optoelectronics Letters | 2009年 / 5卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Liquid Crystal; Photonic Crystal; Point Defect; External Electric Field; Line Defect;

D O I：

10.1007/s11801-009-8127-6

中图分类号：

学科分类号：

摘要：

The coupling between the line defect and point defect in a two-dimensional photonic crystal is studied by using plane wave expansion method and finite difference time domain method. Based on the analysis, we propose a novel tunable terahertz narrow-band filter. Simulation results on the defect modes and output spectra show that the photonic crystal that consists of two line defects and one point defect can act as a tunable filter with narrow bandwidth of 0.02 THz under the control of an external electric field. © Tianjin University of Technology and Springer-Verlag GmbH 2009.

引用

页码：169 / 172

页数：3

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