J4 ›› 2011, Vol. 28 ›› Issue (4): 457-460.

• 量子光学 • 上一篇    下一篇

基于光弹效应的二维光子晶体能带结构特性研究

汪梅婷1, 武校刚2, 童凯2   

  1. 1 燕山大学职业技术学院,河北 秦皇岛, 066004; 
    2 燕山大学电气工程学院,河北 秦皇岛, 066004
  • 收稿日期:2010-08-16 修回日期:2010-08-31 出版日期:2011-07-28 发布日期:2011-07-06
  • 通讯作者: 汪梅婷(1976-),女,讲师,河北,博士研究生,主要从事光信号处理技术的研究。 E-mail:wxgdsmy_2004@126.com
  • 基金资助:

    国家自然科学基金(60877047)与国家教育部博士点基金(20070216004)资助课题

Photoelastic properties of two-dimensional photonic crystals band structure

WANG Meiting1, WU Xiao-gang2, TONG Kai 2   

  1. 1College of vocational technical, Yanshan University, Qinhuangdao 066004, China; 
    2 College of Electrical Engineering, Yanshan University, Qinhuangdao 066004, China
  • Received:2010-08-16 Revised:2010-08-31 Published:2011-07-28 Online:2011-07-06

摘要:

根据介质的光弹效应,采用有限元法对二维光子晶体的能带特性进行分析。当给二维光子晶体施加应力时,由于构成二维光子晶体的介质的光弹效应,引起介质的折射率变化,使得光子晶体的能带结构发生变化。详细分析了外加应力变化对基于Si/SiO2二维光子晶体能带结构特性的影响,结果表明,禁带的起始波长、截止波长及禁带宽度的变化量与外加应力呈线性关系。

关键词: 光电子学, 能带特性, 有限元法, 二维光子晶体, 光弹效应, 应力

Abstract:

In terms of photoelastic effect of the medium, the band characteristics of two-dimensional (2D) photonic crystals were analyzed by finite element method. The photoelastic effect of the medium composing 2D photonic crystals cause change of its refractive index when imposed by stress, the band structure of 2D photonic crystals varies accordingly. The effect of stress on the structural characteristics of band gap in 2D Si/SiO2 photonic crystals was analyzed in detail. And for each band gap, the variation of start wavelength, cut-off wavelength and bandwidth is proportional to stress.

Key words: o optoelectronics, band characteristics, finite element method, two-dimensional photonic crystals, photoelastic effect, stress

中图分类号: