Side-Polish Plastic Optical Fiber Based SPR Sensor for Refractive Index and Liquid-Level Sensing

被引：10

作者：

Teng, Chuanxin ^{[1
]}

Ying, Shiyuan ^{[1
]}

Min, Rui ^{[2
]}

Deng, Shijie ^{[1
]}

Deng, Hongchang ^{[1
]}

Chen, Ming ^{[1
]}

Chu, Xiaoxue ^{[3
]}

Yuan, Libo ^{[1
]}

Cheng, Yu ^{[1
]}

Xue, Minmin ^{[1
]}

机构：

[1] Guilin Univ Elect Technol, Sch Optoelect Engn, Guangxi Key Lab Optoelect Informat Proc, Guilin 541004, Peoples R China

[2] Beijing Normal Univ Zhuhai, Ctr Cognit & Neuroergon, State Key Lab Cognit Neurosci & Learning, Zhuhai 519087, Peoples R China

[3] Guilin Univ Elect Technol, Sch Life & Environm Sci, Guilin 541004, Peoples R China

来源：

SENSORS | 2022年 / 22卷 / 16期

基金：

中国国家自然科学基金;

关键词：

surface plasma resonance (SPR); plastic optical fiber (POF); side-polish; simultaneous measurement; refractive index (RI); liquid level; SURFACE-PLASMON RESONANCE;

D O I：

10.3390/s22166241

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In this work, a simple side-polish plastic optical fiber (POF)-based surface plasmon resonance (SPR) sensor is proposed and demonstrated for simultaneous measurement of refractive index (RI) and liquid level. The effects of side-polish depths on the sensing performance were studied. The experimental results show that the SPR peak wavelength will be changed as the RI changes, and the SPR peak intensity will be changed with the liquid level variation. By monitoring the changes in peak wavelength and intensity, the RI and liquid level can be detected simultaneously. Experimental results show that an RI sensitivity of 2008.58 nm/RIU can be reached at an RI of 1.39. This sensor has the advantages of simple structure and low cost, which has a good prospect in the field of biochemical sensing.

引用

页数：11

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