Numerical investigation of the transmission enhancement through subwavelength hole array

被引：39

作者：

Chen, Yuegang

Wang, Yanhua

Zhang, Yan

Lu, Shutian

机构：

[1] Capital Normal Univ, Dept Phys, Beijing 100037, Peoples R China

[2] Harbin Inst Technol, Dept Phys, Harbin 150001, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2007年 / 274卷 / 01期

基金：

中国国家自然科学基金;

关键词：

subwavelength metal structure; enhanced transmission; surface plasmon;

D O I：

10.1016/j.optcom.2007.02.001

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The transmission characteristics of a metallic film with subwavelength periodic square hole arrays are investigated by using the threedimensional finite-difference time-domain (3D-FDTD) method. The influences of the hole size, the refractive index of substrate, the refractive index of filled medium, the thickness of film as well as the incident angle on the characters of transmission spectra are studied. It is found that the transmission can be enhanced by filling the holes with higher refractive index medium. This enhancement can be explained by the collaboration of localized waveguide resonance with surface plasmon resonance. (C) 2007 Elsevier B.V. All rights reserved.

引用

收藏

页码：236 / 240

页数：5

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