Transmission through metallic array slits curved with perpendicular waveguides

被引：2
作者：
Wang, Yingqi [1 ,2 ]
Wang, Yanhua [1 ]
Ye, Jiasheng [2 ]
Zhang, Yan [2 ]
Liu, Shutian [1 ]
机构：
[1] Harbin Inst Technol, Dept Phys, Harbin 150001, Peoples R China
[2] Capital Normal Univ, Dept Phys, Beijing 100048, Peoples R China
来源：
OPTICS COMMUNICATIONS | 2011年 / 284卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Surface plasmon polaritons; Resonance; Metal optics; LIGHT;
D O I：
10.1016/j.optcom.2010.10.004
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The transmission of normally incident plane wave through an array of subwavelength metallic slits curved with perpendicular waveguides has been explored Two-dimensional electromagnetic fields inside and near the metal film are simulated by the finite-difference time-domain (FDTD) method The perpendicular waveguides in the middle of slits affect the modes of slits in two different manners commonly the extended length of the waveguides leads to the increase of the resonant wavelength shifting the waveguides location along the vertical slits red or blue shift of resonant wavelengths can be achieved however to some confirmed length of the perpendicular waveguides there is the only one resonant wavelength In addition a new explanation model is proposed in which the resonance is ascribed to three reasons the Fabry-Perot cavity theory the surface current flow and the surface charges All the calculated results are well explained by our proposed model (C) 2010 Elsevier BV All rights reserved
引用
收藏
页码：877 / 880
页数：4
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