Size effect and aperture configuration dependence of extraordinary optical transmission through penrose metal hole arrays in the Terahertz region

被引：0

作者：

College of Engineering, Nihon University, 1, Nakagawara, Tokusada, Tamura-machi, Koriyama, Fukushima ^{[1
]}

963-8642, Japan

不详 ^{[2
]}

980-8579, Japan

机构：

[1] College of Engineering, Nihon University, 1, Nakagawara, Tokusada, Tamura-machi, Koriyama, Fukushima

[2] Department of Applied Physics, Tohoku University, 6-6-05, Aoba, Aramaki, Aoba-ku, Sendai

来源：

IEEJ Trans. Sens. Micromach. | / 11卷 / 402-407期

关键词：

Coupled-mode method; Extraordinary optical transmission; Metal hole arrays; Penrose lattice; Terahertz region;

D O I：

10.1541/ieejsmas.135.402

中图分类号：

学科分类号：

摘要：

Extraordinary optical transmission through Penrose metal hole arrays (PMHA) in the terahertz region is investigated numerically by using coupled-mode analysis. Spectral change of the transmittance is studied at resonant frequencies by increasing the number of holes and comparing the spectra of PMHA and a periodic metal hole arrays (MHA). While the resonant mode of MHA is excited in periodic order along one direction, the resonant mode on PMHA has a complicated shape. It seems that the propagating length of surface wave of PMHA is shorter than that of the MHA. Therefore, when the number of hole is increased, increasing rate of the resonant transmittance through PMHA is smaller than that through MHA. In addition, the transmission spectra for three kinds of generalized PMHA are analyzed numerically. Although the distributions of holes in these PMHA are different from each other in real space, the transmission spectra have almost the same shape. Consequently, the structure given by the aperture configuration of PMHA in reciprocal lattice space has stronger effects on extraordinary optical transmission through metal hole arrays, rather than that in real space. © 2015 The Institute of Electrical Engineers of Japan.

引用

页码：402 / 407

页数：5

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