摘要
利用时域有限差分法研究了光在三角形晶格二维光子晶体中的传播特性,从TM波的反射着手,系统研究了不同入射光角度、波长以及温度的变化对于光子晶体减反特性的影响。通过仿真可以看到,设置合适的光子晶体参数,很大带宽波长和入射角度范围内光子晶体在TM波反射端面都有较低的剩余反射率,具有较好的减反特性;温度的漂移对减反效果的影响小,具有较好的温度稳定性。
The light propagation characteristic in a two-dimensional triangle lattice photonic crystal is studied by finite-difference time-domain method. Based on reflection of transverse magnetic（TM） wave, the influences on antireflection characteristics of the photonic crystal resulting from incident angle, wavelength and temperature are systematically studied. The simulation results show that the great residual reflectivity of TM wave can be achieved in wide range of wavelength and incident angle by setting a suitable wave guide width parameter, which demonstrates a good performance in anti-reflection. Moreover, the temperature change has slight impact on anti-reflection, which shows a good stability in temperature drifting.
出处
《激光与光电子学进展》
CSCD
北大核心
2016年第4期188-192,共5页
Laser & Optoelectronics Progress
基金
国家973计划(2007CB935300)
国家自然科学基金(61177043
11104184)
关键词
材料
光子晶体
减反
时域有限差分
剩余反射率
materials
photonic crystals
anti-reflection
finite-difference time-domain
residual reflectivity
