Tunable optical transmission through gold hole arrays with converging and diverging shaped channels

被引：2
|
作者：
Xie, Suxia [1 ,2 ]
Li, Hongjian [1 ,2 ]
Fu, Shaoli [1 ]
Xu, Haiqing [1 ]
Zhou, Xin [1 ,2 ]
Liu, Zhimin [1 ]
机构：
[1] Cent S Univ, Coll Phys Sci & Technol, Changsha 410083, Hunan, Peoples R China
[2] Cent S Univ, Coll Mat Sci & Engn, Changsha 410083, Hunan, Peoples R China
来源：
SOLID STATE COMMUNICATIONS | 2010年 / 150卷 / 43-44期
关键词：
Hole array; Surface plasmon resonance; Localized waveguide resonance; SURFACE-PLASMON RESONANCE; METALS; LIGHT; THZ;
D O I：
10.1016/j.ssc.2010.09.004
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We investigate the extraordinary light transmission through gold hole arrays with converging-diverging, diverging-converging, and converging shaped channels by using finite-difference time-domain (FDTD) method. We find that the resonance wavelength and intensity of each type of hole array are sensitive to the aperture size and unit number of the converging or diverging shape unit in the channels. We show that transmission behaviors are noticeably different for the gold hole arrays with such three different types of channel shapes. The resonant characteristics of the gold hole arrays with shaped channels have a number of important device applications, including filters, modulators and sensors. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2162 / 2167
页数：6
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