用FDTD法分析二维光子晶体带隙  

The FDTD method for analysing two-dimensional photonic bandgap structure

作　　者：马骏[1] 蔡祥宝[1] 刘诗云[1] 

机构地区：[1]南京邮电大学理学院,江苏南京210003

出　　处：《光学仪器》2007年第5期23-26,共4页Optical Instruments

摘　　要：阐述了光子晶体的概念,用时域有限差分法,通过数值计算,模拟分析了准一维光子晶体和二维光子晶体的禁带,讨论一种准一维和二维的混合光子晶体,并对其禁带进行研究。结果表明当一维光子晶体的周期性结构与二维光子晶体的周期性结构混合在一起能形成更宽的光子禁带。The concept of photonic crystal is explained in this paper. The bandgaps of the quasi onedimensional （1D） and two-dimensional （2D） photonic crystal is analysed and simulated by using finite difference time domain （FDTD） method and numerical calculation. The finite difference time domain method is also developed for the study of transmission characteristics of quasi 1-D and 2-D mixed photonic crystals. The results show that the quasi 1-D and 2-D complex photonic crystal bandgaps became wider than general photonic crystal.

关 键 词：二维光子晶体 光子禁带 时域有限差分法 

分 类 号：TN929[电子电信—通信与信息系统]