Article (Scientific journals)
Low Crosstalk Plastic Optical Fiber-Based Dual-Parameter SPR Sensor With Stepped Side-Polished Structure and Differentiated Au-Film Thickness
Teng, Chuanxin; Li, Xinjing; Min, Rui et al.
2024In IEEE Transactions on Instrumentation and Measurement, 73, p. 1 - 7
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Keywords :
Plastic optical fiber (POF); refractive index (RI) and temperature; stepped side-polished structure; surface plasmon resonance (SPR); Au film; Film-thickness; Gold; Plastic optical fiber; Refractive index and temperature; Stepped side-polished structure; Surface plasmon resonance; Surface plasmon resonance sensor; Surface-plasmon resonance; Temperature sensing; Instrumentation; Electrical and Electronic Engineering
Abstract :
[en] In this article, a surface plasmon resonance (SPR) sensor based on a stepped side-polished plastic optical fiber (POF) is proposed and demonstrated for simultaneous measurement of refractive index (RI) and temperature. A differentiated Au-film thickness was deposited on the stepped polished region, which can enlarge the wavelength space for the SPR peaks of RI and temperature sensing channels and reduce their crosstalk. The polydimethylsiloxane (PDMS) film was fabricated on the polished region with a deeper polished depth and a thicker Au-film thickness for temperature sensing. The stepped polished structure can obtain a better resonance peak visibility for the temperature sensing. The experimental results show that the RI sensitivity of the sensor is 1759 nm/RIU in the RI range of 1.335-1.37 and the temperature sensitivity is -0.82 nm/°C in the temperature range of 20 °C-80 °C. The probe has the advantages of easy fabrication and simple structure, which has potential application prospect in the field of biochemical sensing.
Disciplines :
Electrical & electronics engineering
Author, co-author :
Teng, Chuanxin ;  Guilin University of Electronic Technology, Guangxi Key Laboratory of Optoelectronic Information Processing, Guilin, China
Li, Xinjing ;  Guilin University of Electronic Technology, Guangxi Key Laboratory of Optoelectronic Information Processing, Guilin, China
Min, Rui ;  Beijing Normal University, Center for Cognition and Neuroergonomics, State Key Laboratory of Cognitive Neuroscience and Learning, Zhuhai, China
Deng, Shijie ;  Guilin University of Electronic Technology, Guangxi Key Laboratory of Optoelectronic Information Processing, Guilin, China
Qin, Zujun ;  Guilin University of Electronic Technology, Guangxi Key Laboratory of Optoelectronic Information Processing, Guilin, China
Yuan, Libo ;  Guilin University of Electronic Technology, Guangxi Key Laboratory of Optoelectronic Information Processing, Guilin, China
Hu, Xuehao  ;  Université de Mons - UMONS > Recherche > Service ERC Unit - Advanced Photonic
Language :
English
Title :
Low Crosstalk Plastic Optical Fiber-Based Dual-Parameter SPR Sensor With Stepped Side-Polished Structure and Differentiated Au-Film Thickness
Publication date :
2024
Journal title :
IEEE Transactions on Instrumentation and Measurement
ISSN :
0018-9456
eISSN :
1557-9662
Publisher :
Institute of Electrical and Electronics Engineers Inc.
Volume :
73
Pages :
1 - 7
Peer reviewed :
Peer Reviewed verified by ORBi
Research unit :
Electromagnetism and Telecommunications
Research institute :
Research Institute for Materials Science and Engineering
Funders :
National Natural Science Foundation of China
Guangxi Natural Science Foundation
Innovation Project of GUET Graduate Education
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since 16 January 2024

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