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.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
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~~
关键词
时域有限差分法
非磁化等离子体光子晶体
缺陷模
finite-different time-domain method,unmagnetized plasma photonic crystals,defect mode
