Side-Polish Plastic Optical Fiber Based SPR Sensor for Refractive Index and Liquid-Level Sensing.
Side-Polish Plastic Optical Fiber Based SPR Sensor for Refractive Index and Liquid-Level Sensing.
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DOI:
10.3390/s22166241
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发表时间:
2022-08-19
期刊:
影响因子:
3.9
通讯作者:
Xue, Minmin
中科院分区:
文献类型:
--
作者:
Teng, Chuanxin;Ying, Shiyuan;Min, Rui;Deng, Shijie;Deng, Hongchang;Chen, Ming;Chu, Xiaoxue;Yuan, Libo;Cheng, Yu;Xue, Minmin
关键词:
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.
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