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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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Autores principales: Liu, Shuhui, Cao, Shaoqing, Zhang, Zhe, Wang, Ying, Liao, Changrui, Wang, Yiping
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6806059/
https://www.ncbi.nlm.nih.gov/pubmed/31547066
http://dx.doi.org/10.3390/s19194063
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author Liu, Shuhui
Cao, Shaoqing
Zhang, Zhe
Wang, Ying
Liao, Changrui
Wang, Yiping
author_facet Liu, Shuhui
Cao, Shaoqing
Zhang, Zhe
Wang, Ying
Liao, Changrui
Wang, Yiping
author_sort Liu, Shuhui
collection PubMed
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.
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spelling pubmed-68060592019-11-07 Temperature Sensor Based on Side-Polished Fiber SPR Device Coated with Polymer Liu, Shuhui Cao, Shaoqing Zhang, Zhe Wang, Ying Liao, Changrui Wang, Yiping Sensors (Basel) Article 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. MDPI 2019-09-20 /pmc/articles/PMC6806059/ /pubmed/31547066 http://dx.doi.org/10.3390/s19194063 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Liu, Shuhui
Cao, Shaoqing
Zhang, Zhe
Wang, Ying
Liao, Changrui
Wang, Yiping
Temperature Sensor Based on Side-Polished Fiber SPR Device Coated with Polymer
title 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_short 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
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6806059/
https://www.ncbi.nlm.nih.gov/pubmed/31547066
http://dx.doi.org/10.3390/s19194063
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