Surface Plasmon Resonance Sensor Based on an Angled Optical Fiber

被引：17

作者：

Jian, Aoqun ^{[1
,2
]}

Deng, Lili ^{[1
,2
]}

Sang, Shengbo ^{[1
,2
]}

Duan, Qianqian ^{[1
,2
]}

Zhang, Xuming ^{[3
]}

Zhang, Wendong ^{[1
,2
]}

机构：

[1] Taiyuan Univ Technol, Coll Informat Engn, MircoNano Syst Res Ctr, Taiyuan 030024, Peoples R China

[2] Taiyuan Univ Technol, Key Lab Adv Transducers & Intelligent Control Sys, Minist Educ, Taiyuan 030024, Peoples R China

[3] Hong Kong Polytech Univ, Dept Appl Phys, Hong Kong, Hong Kong, Peoples R China

来源：

IEEE SENSORS JOURNAL | 2014年 / 14卷 / 09期

基金：

中国国家自然科学基金;

关键词：

Angled fiber; surface plasmon resonance; refractive index sensor; SENSITIVITY; EXCITATION; VAPOR; WAVE;

D O I：

10.1109/JSEN.2014.2322124

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Optical fiber-based surface plasmon resonance (SPR) sensors show great promise in applications for biochemistry detection. In this paper, a SPR sensor employing the angled optical fiber tip with a constant incident angle is reported. The incident angle and light interaction have been theoretical analyzed. The sensing probe has been fabricated via polishing the fiber tip to a specific angle. The process to achieve the smooth polished surface is also presented. The SPR spectra of solutions with different refractive indexes are obtained by collecting the light reflected by the angled fiber with metal coating. There is a red shift with the increase of analytes' refractive index. Slightly different from the theoretical value 8300 nm/RIU, the sensitivity obtained in the experiment is 7650 nm/RIU.

引用

页码：3229 / 3235

页数：7

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