Analytical theory and equivalent circuit for extraordinary transmission through arrays of slits perforated in realistic metallic screens
Analytical theory and equivalent circuit for extraordinary transmission through arrays of slits perforated in realistic metallic screens
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通过真实金属屏幕上穿孔的狭缝阵列实现非凡传输的分析理论和等效电路
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
R. Marqués
中科院分区：
文献类型：
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作者：
V. Delgado;F. Mesa;L. Jelínek;R. Marqués
本文提出了一种亚波长周期性狭缝阵列穿透有耗金属屏的非寻常光传输（EOT）的解析理论。该理论是基于我们以前的工作EOT通过完美的导电屏幕和表面阻抗的概念。良好的协议与电磁模拟被发现的所有频率范围内，EOT已报告，包括微波和光学。我们还展示了如何一个简单的传输线等效电路模型可以推断出的分析结果。
We propose an analytical theory of extraordinary optical transmission (EOT) through lossy metallic screens perforated by a periodic array of subwavelength slits. The theory is based on our previous work on EOT through perfect conducting screens and on the surface impedance concept. Good agreement with electromagnetic simulations is found for all frequency range where EOT has been reported, including microwaves and optics. We also show how a simple transmission-line equivalent circuit model can be inferred from the analytical results.