Near-Perfect Reflection in Multilayer Structures with a Highly Absorptive Metallic Film and a Truncated Photonic Crystal Containing Defects
Near-Perfect Reflection in Multilayer Structures with a Highly Absorptive Metallic Film and a Truncated Photonic Crystal Containing Defects
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DOI：
10.1163/156939312800030712
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发表时间：
2012-01
影响因子：
1.3
通讯作者：
G. Du;L. Cui;L. W. Zhang;H. T. Jiang
中科院分区：
文献类型：
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作者：
G. Du;L. Cui;L. W. Zhang;H. T. Jiang
我们从理论上研究了由高吸收金属薄膜和具有缺陷的光子晶体组成的多层结构的光学特性。研究发现，当缺陷光子晶体为非对称结构时，由于金属薄膜的高吸收性，在多层膜的总吸收带宽内，缺陷波长处会出现多个近乎完美的反射峰;而当缺陷光子晶体为近似对称结构时，缺陷波长处会出现高透射峰。这些性质对于设计可见光和近红外区域的特定多通道反射和透射滤波器具有重要意义。
We have theoretically investigated the optical properties of multilayer structures composed of a highly absorptive metal film and a photonic crystal with defects. It is found that when the photonic crystal containing defects is asymmetric, multiple near-perfect reflection peaks at defect wavelengths will appear within the total absorption broadband of the multilayer because of the highly absorptive metal film, while the high transmission peaks appear when the photonic crystal with defects is nearly symmetric. Such properties are significant for designing particular multichannel reflection and transmission filters in the visible and near infrared regions.