金属介电常数的色散模型对光学Tamm态的影响  

Optical Tamm States with Three Dispersion Models of Metals Dielectric Constant

作　　者：蒋和伦[1,2] 刘启能[1,2] 

机构地区：[1]重庆工商大学,重庆市检测控制集成系统工程实验室,重庆400067 [2]重庆工商大学计算机科学与信息工程学院,重庆400067

出　　处：《计算物理》2016年第5期547-553,共7页Chinese Journal of Computational Physics

基　　金：重庆市教委科技项目基金(KJ1400641)资助项目

摘　　要：比较银介电常数三种色散模型对光学Tamm态的影响,根据三种色散模型的复折射率随波长的变化研究银-光子晶体-银结构TE波和TM波的光学Tamm态随入射角、银层厚度及周期数的变化.得出:三种色散模型下银-光子晶体-银结构中都会出现两个光学Tamm态(OTS1和OTS2).三种色散模型下的光学Tamm态的波长随入射角、银层厚度及周期数的变化规律一致.但是光学Tamm态的透射峰值随入射角、银层厚度及周期数的变化规律不一致.Drude-Lorentz模型和Lorentz模型能够描述银的特征,而Drude模型不能.To investigate metal dielectric constant influence on optical Tamm state, complex refractive index in three dispersion models is studied. TE wave and TM wave of optical Tamm state with different incident angle and silver layer thickness and cycles number are studied in silver-photonic crystal-silver structure. Two optical Tamm state appeare （OTS1 and OTS2）. In three dispersion models wavelength of optical Tamm state changing with incident angle and silver layer thickness and cycles number are similar. Transmission peak of optical Tamm state changing with incident angle and silver layer thickness and cycles number are different. Drude-Lorentz model and Lorentz model can describe characteristics of silver, but the Drude model can＇t.

关 键 词：光子晶体 光学Tamm态 Drude-Lorentz模型 Lorentz模型 Drude模型 

分 类 号：O77[理学—晶体学]