Temperature Sensor Based on Side-Polished Fiber SPR Device Coated with Polymer

A highly sensitive temperature sensor based on surface plasmon resonance (SPR) of a side-polished single mode fiber is demonstrated. The sensor consists of a gold film coated side-polished fiber covered by a layer of UV-curable adhesive. Before introducing the UV-curable adhesive, the gold-coated fi...

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Main Authors:	Shuhui Liu, Shaoqing Cao, Zhe Zhang, Ying Wang, Changrui Liao, Yiping Wang
Format:	Article
Language:	English
Published:	MDPI AG 2019-09-01
Series:	Sensors
Subjects:	optical fiber sensor surface plasmon resonance temperature sensor refractive index
Online Access:	https://www.mdpi.com/1424-8220/19/19/4063

id	doaj-17c91c50c0084662ad9ff0ee4e48608f
record_format	Article
spelling	doaj-17c91c50c0084662ad9ff0ee4e48608f2020-11-25T01:09:42ZengMDPI AGSensors1424-82202019-09-011919406310.3390/s19194063s19194063Temperature Sensor Based on Side-Polished Fiber SPR Device Coated with PolymerShuhui Liu0Shaoqing Cao1Zhe Zhang2Ying Wang3Changrui Liao4Yiping Wang5Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, ChinaKey Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, ChinaKey Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, ChinaKey Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, ChinaKey Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, ChinaKey Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, ChinaA highly sensitive temperature sensor based on surface plasmon resonance (SPR) of a side-polished single mode fiber is demonstrated. The sensor consists of a gold film coated side-polished fiber covered by a layer of UV-curable adhesive. Before introducing the UV-curable adhesive, the gold-coated fiber exhibits refractive index (RI) sensitivity of 1691.6 nm/RIU to 8800 nm/RIU in the range of 1.32 to 1.43. The resonant wavelength of the SPR sensor shifts to 650 nm when the adhesive is coated on the gold film, and is fixed at about 725 nm when the adhesive is cured. Due to the high thermo-optic and thermal expansion coefficient of the adhesive, the sensor structure achieves a temperature sensitivity of −0.978 nm/°C between 25 °C and 100 °C. The proposed optical fiber SPR sensor is simple, highly sensitive and cost effective, which may find potential applications for temperature measurements in the biomedical and environmental industries.https://www.mdpi.com/1424-8220/19/19/4063optical fiber sensorsurface plasmon resonancetemperature sensorrefractive index
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Shuhui Liu Shaoqing Cao Zhe Zhang Ying Wang Changrui Liao Yiping Wang
spellingShingle	Shuhui Liu Shaoqing Cao Zhe Zhang Ying Wang Changrui Liao Yiping Wang Temperature Sensor Based on Side-Polished Fiber SPR Device Coated with Polymer Sensors optical fiber sensor surface plasmon resonance temperature sensor refractive index
author_facet	Shuhui Liu Shaoqing Cao Zhe Zhang Ying Wang Changrui Liao Yiping Wang
author_sort	Shuhui Liu
title	Temperature Sensor Based on Side-Polished Fiber SPR Device Coated with Polymer
title_short	Temperature Sensor Based on Side-Polished Fiber SPR Device Coated with Polymer
title_full	Temperature Sensor Based on Side-Polished Fiber SPR Device Coated with Polymer
title_fullStr	Temperature Sensor Based on Side-Polished Fiber SPR Device Coated with Polymer
title_full_unstemmed	Temperature Sensor Based on Side-Polished Fiber SPR Device Coated with Polymer
title_sort	temperature sensor based on side-polished fiber spr device coated with polymer
publisher	MDPI AG
series	Sensors
issn	1424-8220
publishDate	2019-09-01
description	A highly sensitive temperature sensor based on surface plasmon resonance (SPR) of a side-polished single mode fiber is demonstrated. The sensor consists of a gold film coated side-polished fiber covered by a layer of UV-curable adhesive. Before introducing the UV-curable adhesive, the gold-coated fiber exhibits refractive index (RI) sensitivity of 1691.6 nm/RIU to 8800 nm/RIU in the range of 1.32 to 1.43. The resonant wavelength of the SPR sensor shifts to 650 nm when the adhesive is coated on the gold film, and is fixed at about 725 nm when the adhesive is cured. Due to the high thermo-optic and thermal expansion coefficient of the adhesive, the sensor structure achieves a temperature sensitivity of −0.978 nm/°C between 25 °C and 100 °C. The proposed optical fiber SPR sensor is simple, highly sensitive and cost effective, which may find potential applications for temperature measurements in the biomedical and environmental industries.
topic	optical fiber sensor surface plasmon resonance temperature sensor refractive index
url	https://www.mdpi.com/1424-8220/19/19/4063
work_keys_str_mv	AT shuhuiliu temperaturesensorbasedonsidepolishedfibersprdevicecoatedwithpolymer AT shaoqingcao temperaturesensorbasedonsidepolishedfibersprdevicecoatedwithpolymer AT zhezhang temperaturesensorbasedonsidepolishedfibersprdevicecoatedwithpolymer AT yingwang temperaturesensorbasedonsidepolishedfibersprdevicecoatedwithpolymer AT changruiliao temperaturesensorbasedonsidepolishedfibersprdevicecoatedwithpolymer AT yipingwang temperaturesensorbasedonsidepolishedfibersprdevicecoatedwithpolymer
_version_	1725177179661139968

Temperature Sensor Based on Side-Polished Fiber SPR Device Coated with Polymer

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