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

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

Content Provider	MDPI
Author	Teng, Chuanxin Ying, Shiyuan Min, Rui Deng, Shijie Deng, Hongchang Chen, Ming Chu, Xiaoxue Yuan, Libo Cheng, Yu Xue, Minmin
Copyright Year	2022
Description	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.
Starting Page	6241
e-ISSN	14248220
DOI	10.3390/s22166241
Journal	Sensors
Issue Number	16
Volume Number	22
Language	English
Publisher	MDPI
Publisher Date	2022-08-19
Access Restriction	Open
Subject Keyword	Sensors Surface Plasma Resonance (spr) Plastic Optical Fiber (pof) Side-polish Simultaneous Measurement Refractive Index (ri) Liquid Level
Content Type	Text
Resource Type	Article

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