摘要
采用4×4传输矩阵法研究了一维镜像结构光子晶体的应力效应,重点研究了应力导致的各项异性对缺陷模的影响。模拟结果显示,应力作用导致的晶体厚度的改变,将会导致透射谱中缺陷模的明显移动,缺陷模的移动和晶体厚度呈现线性关系。进一步研究证实,对于不同材料,应力作用导致的介质的各向异性将加强或削弱这一效应。在如今对传感器精度要求越来越高的情况下,光子晶体的这些特性在压力传感器的设计制作中显示出潜在的应用价值。
The 4×4 transfer matrix method is applied to study the transmission and reflection characteristics of one dimensional photonic heterostructures. The key research is the effect of stress-induced anisotropy. The simulation results show that defect-mode in the photonic band gap move distinctly along with the change of photonic crystal＇s thickness. A linear relationship is presented with the change of the defect-mode＇s move and its thickness. The study further explore the stress-induced anisotropy. With different materials, the defect-mode＇s displacement is either strengthened or weakened depending on the stress-induced anisotropy. Considering the higher requirement for the precision of sensors, these features of photonic crystal show potential values in the designation and production of pressure sensors.
出处
《激光与光电子学进展》
CSCD
北大核心
2015年第4期142-147,共6页
Laser & Optoelectronics Progress
