金薄膜中纳米孔晶格的反常透射
Extraordinary transmission of nanohole lattices in gold films
摘要：
我们实验研究了光通过在光学厚度的金膜上穿孔的纳米孔的正方形晶格的传输。我们观察到，该结构的周期性增强了特定波长的光传输，我们通过采用时域有限差分数值模拟从理论上分析了这种效果。此外，我们调查的可能性操纵的准周期性和啁啾晶格组成的正方形纳米孔与不同的孔大小或晶格周期的光谱传输。
英文摘要：
We study experimentally the transmission of light through a square lattice of nanoholes perforated in a optically-thick gold film. We observe that the periodicity of the structure enhances the light transmission for specific wavelengths, and we analyze this effect theoretically by employing finite-difference time-domain numerical simulations. Furthermore, we investigate the possibilities for manipulation of the spectral transmission in quasi-periodic and chirped lattices consisting of square nanoholes with varying hole size or lattice periodicity.
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