Comprehensive numerical analysis of a surface-plasmon-resonance sensor based on an H-shaped optical fiber

被引：53
作者：
Erdmanis, Mikhail [1 ]
Viegas, Diana [2 ,3 ]
Hautakorpi, Markus [1 ]
Novotny, Steffen [1 ]
Santos, Jose Luis [2 ,3 ]
Ludvigsen, Hanne [1 ]
机构：
[1] Aalto Univ, Dept Micro & Nanosci, Fiber Opt Grp, FI-00076 Aalto, Finland
[2] Univ Porto, Fac Sci, Dept Phys, P-4169007 Oporto, Portugal
[3] INESC Porto, P-4200465 Oporto, Portugal
来源：
OPTICS EXPRESS | 2011年 / 19卷 / 15期
基金：
芬兰科学院;
关键词：
EXCITATION; LAYER;
D O I：
10.1364/OE.19.013980
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We present and numerically characterize a surface-plasmon-resonance sensor based on an H-shaped optical fiber. In our design, the two U-shaped grooves of the H-fiber are first coated with a thin gold layer and then covered by a uniform titanium dioxide layer to facilitate spectral tuning of the device. A finite element method analysis of the sensor indicates that a refractive-index resolution of up to 5.10(3) nm/RIU can be obtained. (C) 2011 Optical Society of America
引用
收藏
页码：13980 / 13988
页数：9
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