Transmission properties of defect modes in one-dimensional photonic crystals containing gradient refractive index defects

被引：9

作者：

Xu, Bobo ^{[1
]}

Zheng, Gaige ^{[1
]}

Wu, Yigen ^{[1
]}

Cao, Kun ^{[1
]}

机构：

[1] Nanjing Univ Informat Sci & Technol, Sch Phys & Optoelect Engn, Nanjing 210044, Jiangsu, Peoples R China

来源：

OPTIK | 2015年 / 126卷 / 24期

基金：

中国国家自然科学基金;

关键词：

One-dimensional photonic crystal; Gradient refractive index; FDTD method; Defect mode; GAPS;

D O I：

10.1016/j.ijleo.2015.09.214

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The gradient refractive index (GRIN) defect layer is introduced into one-dimensional photonic crystal (1D PC) to develop the optical filters needed. The transmission properties of 1D PC with GRIN defect layer were investigated based on the finite difference time domain (FDTD) method. Defect mode was obtained according to the GRIN distribution functions. With a GRIN structure in the defect layer, simulation results show that the position and width of the photonic band gap can be effectively modulated by varying the thickness and GRIN distribution functions of defect layer and the parameters of symmetrical layers. The new study provides a certain reference for photonic band gap engineering and designing the photonic-based devices. (C) 2015 Elsevier GmbH. All rights reserved.

引用

页码：5158 / 5162

页数：5

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