石墨点阵柱状光子晶体共振腔的温度特性  

Temperature characteristic of photonic crystals resonant cavity composed of GaAs pillars with graphite lattice

作　　者：李岩[1] 傅海威[1] 邵敏[1] 李晓莉[1] 

机构地区：[1]西安石油大学理学院,西安710065

出　　处：《物理学报》2011年第7期384-389,共6页Acta Physica Sinica

基　　金：陕西省自然科学基础研究计划项目(批准号:2010JM8006)资助和课题~~

摘　　要：构造了一种二维GaAs石墨点阵柱状光子晶体共振腔.利用时域有限差分方法计算了这种光子晶体共振腔TEy模的共振峰随温度变化的情况.计算结果表明这种结构的光子晶体共振腔的共振峰主峰随温度呈分段线性变化趋势,且具有1.60nm/℃以上的温度响应灵敏度.同时,计算结果显示,这种结构的光子晶体共振腔具有很好的频率开关特性.最后,利用计算结果解释了频率开关特性的成因.A model of two-dimensional photonic band gap structure resonant cavity composed of GaAs pillars with graphite lattice is proposed. The variation of its TEy mode formant wavelength with temperature is calculated by finite difference time domain method. The results show that there is a sectional linear characteristic between the main formant wavelength and temperature for this kind of photonic crystal resonant cavity, and the sensitivity responding to temperature is more than 1.60nmFC. At the same time, the results show that this kind of resonant cavity possesses an excellent characterisitc of frequency switching. Finally, the cause for its switching characteristic is explained by the calculated results.

关 键 词：光子晶体 温度 共振腔 开关 

分 类 号：O734[理学—晶体学]