Multi-hole fiber based surface plasmon resonance sensor operated at near-infrared wavelengths

被引：141

作者：

Gao, Di ^{[1
]}

Guan, Chunying ^{[1
,2
]}

Wen, Yaowu ^{[1
]}

Zhong, Xing ^{[1
]}

Yuan, Libo ^{[1
]}

机构：

[1] Harbin Engn Univ, Coll Sci, Key Lab In Fiber Integrated Opt, Minist Educ, Harbin 150001, Peoples R China

[2] Univ Southampton, Optoelect Res Ctr, Southampton SO17 1BJ, Hants, England

来源：

OPTICS COMMUNICATIONS | 2014年 / 313卷

基金：

中国国家自然科学基金;

关键词：

Surface plasmon resonance; Multi-hole fiber; Micro structured fiber; Refractive-index sensor; PHOTONIC-CRYSTAL-FIBER; OPTICAL-FIBER; DISPERSION; BIOSENSOR;

D O I：

10.1016/j.optcom.2013.10.015

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose a surface plasmon resonance (SPR) sensor based on a single mode optical fiber with six air holes. A thin gold film and a TiO2 film aiare deposited on the walls of an holes. Due to high refractive index of TiO2 the proposed sensor can operate at near-infrared (FR) wavelengths. The characteristics of the sensor were numerically investigated based on the finite-element method (FEM). The numerical results indicate that the optical loss spectrum of SPR sensor can be tuned easily by changing the thicknesses of gold and TiO2 layers. The refractive-index resolution of 2.7 x 10(-5) (sensitivity S approximate to 370/RIU) for aqueous analytes can be achieved. (c) 2013 Elsevier B.V. All rights reserved.

引用

页码：94 / 98

页数：5

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