吉林大学学报(信息科学版) ›› 2015, Vol. 33 ›› Issue (6): 668-.

• 论文 • 上一篇    下一篇

基于介质圆柱结构的复式二维光子晶体禁带研究

王媛媛1, 张立新2, 王一阳3, 严智煜3, 何晓东3   

  1. 1. 海南医学院医学信息学院, 海口571199; 2. 吉林省辐射环境监督站管理科, 长春130012;3. 吉林大学通信工程学院, 长春130012
  • 收稿日期:2015-04-16 出版日期:2015-11-27 发布日期:2016-01-04
  • 作者简介:王媛媛(1984—), 女, 海口人, 海南医学院讲师, 主要从事材料的设计及性能研究, (Tel)86-13136011039(E-mail)232919859@ qq. com; 通讯作者: 何晓东(1963—), 女, 长春人, 吉林大学教授, 硕士生导师, 主要从事全光通信网的关键技术和器件、光子晶体及器件研究, (Tel)86-13069003226(E-mail)hexiaodong220@163. com。
  • 基金资助:

    长春市国际合作科技计划基金资助项目(2009GH12)

Research of Band Gap in Compound Two-Dimensional Photonic Crystal Based on Dielectric Cylinder Structure

WANG Yuanyuan1, ZHANG Lixin2, WANG Yiyang3, YAN Zhiyu3, HE Xiaodong3   

  1. 1. College of Medical Informatics, Hainan Medical University, Haikou 571199, China;
    2. Department of Management, Jilin Provincial Radiation Environmental Supervision Station, Changchun 130012, China;
    3. College of Communication Engineering, Jilin University, Changchun130012, China
  • Received:2015-04-16 Online:2015-11-27 Published:2016-01-04

摘要:

为提高二维光子晶体禁带带宽或产生完全禁带, 利用平面波展开法对二维正方排列介质圆柱和三角排列介质圆柱结构以及改变其晶胞形成的复式结构进行了禁带研究。研究结果表明, 对于介质柱结构, 实现禁带中心频率低频化的方式有两种, 即增大介质柱半径和增加介质柱折射率。当采用复式结构时, 一般可形成较大的TM(Transverse Magnetic)禁带, 同时为TE(Transverse Electric)禁带和完全禁带的形成提供了可能。通过改变晶胞结构, 破坏结构对称性是实现完全禁带的一种可行方法。

关键词: 光子晶体, 二维光子晶体, 平面波展开法, 禁带结构, 完全禁带

Abstract:

In order to quest for large band gap or complete band gap of two-dimensional photonic crystal, the band gap of the structure in two-dimensional square lattice and triangular lattice with dielectric cylinder using the plane wave method, and the band gap of the compound structure by changing the unite cell are studied. Results show that to the dielectric rod, the middle frequencies of the band gap will reduce with the increase of the radius and refractive index of the dielectric rod. The compound dielectric cylinder structure has big TM(Transverse Magnetic) band gap, and it makes TE(Transverse Electric) band gap and the formation of this make complete band gap be possible. Changing the unite cell to reduce the symmetry of the structure is a feasible method to quest for complete band gap.

Key words: photonic crystal, two-dimensional photonic crystal, plane wave method, band gap, complete band gap

中图分类号: 

  • TN248