非磁化等离子体光子晶体缺陷态的研究  

Study on the defect mode properties of unmagnetized plasma photonic crystals

作　　者：马力[1] 章海锋[2] 刘少斌[3] 

机构地区：[1]南昌大学理学院,南昌330031 [2]南昌大学机电学院 [3]南京航空航天大学信息科学与技术学院,南京210016

出　　处：《物理学报》2008年第8期5089-5094,共6页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:60471002)资助的课题~~

摘　　要：采用时域有限差分法中的分段线性电流密度卷积算法,研究具有单一缺陷层的一维非磁化等离子体光子晶体的缺陷模特性.从频域角度分析得到微分高斯脉冲的透射率,并讨论该光子晶体的缺陷层介电常数、厚度、位置、光子晶体的周期常数和等离子体参数对其缺陷模的影响.结果表明,改变以上参数可获得不同的缺陷模.The piecewise linear current density recursive convolution in finite-difference time-domain method is used to study the characteristics of one-dimensional unmagnetized plasma photonic crystals with a defect layer.In the frequency domain,the transmission ratios of electromagnetic Gaussian pulses are computed and we analyzed the effect on defect mode properties of unmagnetized photonic crystals produced by its periodic constant,parameters of plasma and parameters of the defect layer,such as its dielectric coefficient,length and position.The results show that different defect modes can be realized by changing the parameters.

关 键 词：时域有限差分法 非磁化等离子体光子晶体 缺陷模 

分 类 号：O77[理学—晶体学]