Enhanced transmission of periodic, quasiperiodic, and random nanoaperture arrays
Enhanced transmission of periodic, quasiperiodic, and random nanoaperture arrays
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DOI：
10.1063/1.2799240
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发表时间：
2007-10-08
影响因子：
4
通讯作者：
Giessen, Harald
中科院分区：
文献类型：
--
作者：
Rockstuhl, Carsten;Lederer, Falk;Giessen, Harald
我们的数值计算和实验表明，环形纳米孔阵列的增强传输与纳米孔的排列无关。如果这种增强主要依赖于纳米孔中的导模的法布里-珀罗共振，则这是成立的。我们观察到一个周期性的，准周期性的，甚至是一个随机的纳米孔排列的可比透射谱。这补充了先前的发现，其中圆形纳米孔阵列的增强透射被证明依赖于金属表面处的表面等离子体激元的激发，因此强烈依赖于纳米孔的布置。
We numerically and experimentally show that the enhanced transmission of an array of annular nanoapertures is independent of the nanoaperture's arrangement. This holds if this enhancement primarily relies on Fabry-Perot resonances of guided modes in the nanoapertures. We observe a comparable transmission spectrum for a periodic, a quasiperiodic, and even a random nanoaperture arrangement. This complements previous findings where the enhanced transmission of a circular nanoaperture array was shown to rely on the excitation of surface-plasmon polaritons at the metal surface and thus strongly depended on the nanoaperture's arrangement.