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An Exposed-Core Grapefruit Fibers Based Surface Plasmon Resonance Sensor

To solve the problem of air hole coating and analyte filling in microstructured optical fiber-based surface plasmon resonance (SPR) sensors, we designed an exposed-core grapefruit fiber (EC-GFs)-based SPR sensor. The exposed section of the EC-GF is coated with a SPR, supporting thin silver film, whi...

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Detalles Bibliográficos
Autores principales: Yang, Xianchao, Lu, Ying, Wang, Mintuo, Yao, Jianquan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4541925/
https://www.ncbi.nlm.nih.gov/pubmed/26184227
http://dx.doi.org/10.3390/s150717106
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author Yang, Xianchao
Lu, Ying
Wang, Mintuo
Yao, Jianquan
author_facet Yang, Xianchao
Lu, Ying
Wang, Mintuo
Yao, Jianquan
author_sort Yang, Xianchao
collection PubMed
description To solve the problem of air hole coating and analyte filling in microstructured optical fiber-based surface plasmon resonance (SPR) sensors, we designed an exposed-core grapefruit fiber (EC-GFs)-based SPR sensor. The exposed section of the EC-GF is coated with a SPR, supporting thin silver film, which can sense the analyte in the external environment. The asymmetrically coated fiber can support two separate resonance peaks (x- and y-polarized peaks) with orthogonal polarizations and x-polarized peak, providing a much higher peak loss than y-polarized, also the x-polarized peak has higher wavelength and amplitude sensitivities. A large analyte refractive index (RI) range from 1.33 to 1.42 is calculated to investigate the sensing performance of the sensor, and an extremely high wavelength sensitivity of 13,500 nm/refractive index unit (RIU) is obtained. The silver layer thickness, which may affect the sensing performance, is also discussed. This work can provide a reference for developing a high sensitivity, real-time, fast-response, and distributed SPR RI sensor.
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spelling pubmed-45419252015-08-26 An Exposed-Core Grapefruit Fibers Based Surface Plasmon Resonance Sensor Yang, Xianchao Lu, Ying Wang, Mintuo Yao, Jianquan Sensors (Basel) Article To solve the problem of air hole coating and analyte filling in microstructured optical fiber-based surface plasmon resonance (SPR) sensors, we designed an exposed-core grapefruit fiber (EC-GFs)-based SPR sensor. The exposed section of the EC-GF is coated with a SPR, supporting thin silver film, which can sense the analyte in the external environment. The asymmetrically coated fiber can support two separate resonance peaks (x- and y-polarized peaks) with orthogonal polarizations and x-polarized peak, providing a much higher peak loss than y-polarized, also the x-polarized peak has higher wavelength and amplitude sensitivities. A large analyte refractive index (RI) range from 1.33 to 1.42 is calculated to investigate the sensing performance of the sensor, and an extremely high wavelength sensitivity of 13,500 nm/refractive index unit (RIU) is obtained. The silver layer thickness, which may affect the sensing performance, is also discussed. This work can provide a reference for developing a high sensitivity, real-time, fast-response, and distributed SPR RI sensor. MDPI 2015-07-14 /pmc/articles/PMC4541925/ /pubmed/26184227 http://dx.doi.org/10.3390/s150717106 Text en © 2015 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 license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Yang, Xianchao
Lu, Ying
Wang, Mintuo
Yao, Jianquan
An Exposed-Core Grapefruit Fibers Based Surface Plasmon Resonance Sensor
title An Exposed-Core Grapefruit Fibers Based Surface Plasmon Resonance Sensor
title_full An Exposed-Core Grapefruit Fibers Based Surface Plasmon Resonance Sensor
title_fullStr An Exposed-Core Grapefruit Fibers Based Surface Plasmon Resonance Sensor
title_full_unstemmed An Exposed-Core Grapefruit Fibers Based Surface Plasmon Resonance Sensor
title_short An Exposed-Core Grapefruit Fibers Based Surface Plasmon Resonance Sensor
title_sort exposed-core grapefruit fibers based surface plasmon resonance sensor
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4541925/
https://www.ncbi.nlm.nih.gov/pubmed/26184227
http://dx.doi.org/10.3390/s150717106
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