为研究由电各向异性材料和磁各向异性材料构建的一维光子晶体的电磁传输特性,分析了不同电等离子体频率和磁等离子体频率对TE极化波和TM极化波禁带宽度的影响规律.结果表明,磁等离子体频率对TE极化波及TM极化波的禁带宽度有较大的调节作用.当电导率和磁导率都为正的各向同性材料缺陷结构引入到光子晶体中时,会有电磁缺陷模式出现,而且缺陷模式的频率随缺陷厚度的增加而降低,同时缺陷的厚度对TM极化波缺陷模式的调谐作用大于对TE极化波的调谐作用,这对滤波器的频率调节具有潜在的应用价值.%The electromagnetic transmission properties of one-dimensional photonic crystals containing permittivity and permeability-anisotropic materials are studied by transfer matrix. The influence of electric and magnetic plasma frequencies on band gap of TE and TM polarization waves is analyzed. The results show that the magnetic plasma frequencies can effectively tune the width of TE and TM polarization waves. When an isotropic impurity is introduced, a defect mode appears and the defect mode moves to low frequency with the increasing thickness of defect. The characteristic will make this photonic crystal have potential applications in filters.
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