Comprehensive microscopic model of the extraordinary optical transmission
Comprehensive microscopic model of the extraordinary optical transmission
复制标题
非凡光传输的综合微观模型
DOI：
10.1364/josaa.27.002542
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发表时间：
2010-12-01
影响因子：
1.9
通讯作者：
Lalanne, Philippe
中科院分区：
文献类型：
--
作者：
Liu, Haitao;Lalanne, Philippe
如最近的一封信[Nature 452，728（2008）]中所示，利用微观模型，异常光透射（EOT）的现象本质上是由于两种不同的表面波：表面等离子体激元和准柱面波（准CW），其在共振时有效地将光汇集到孔孔径中。在这里，我们提出了一个全面的微观模型的EOT，考虑到两个表面波。该模型保留了先前方法的理想物理见解，但由于它另外考虑了准CW，因此它在更宽的光谱范围内（从可见光到微波辐射）提供了高度准确的预测。最终的结果是对EOT的许多方面，特别是对金属导电性的作用有了全面的了解，这在很大程度上使最初的解释感到困惑。我们相信，本分析的主要结论可以应用于许多金属表面上的伍德型表面共振。(C)2010年美国光学学会
As shown in a recent letter [Nature 452, 728 (2008)] with a microscopic model, the phenomenon of the extraordinary optical transmission (EOT) is intrinsically due to two distinct surface waves: the surface plasmon polariton and the quasi-cylindrical wave (quasi-CW) that efficiently funnel light into the hole aperture at resonance. Here we present a comprehensive microscopic model of the EOT that takes into account the two surface waves. The model preserves the desirable physical insight of the previous approach, but since it additionally takes into account the quasi-CWs, it provides highly accurate predictions over a much broader spectral range, from visible to microwave radiation. The net outcome is a complete understanding of many aspects of the EOT and especially of the role of the metal conductivity that has largely puzzled the initial interpretations. We believe that the main conclusions of the present analysis may be applied to many Wood-type surface resonances on metallic surfaces. (C) 2010 Optical Society of America