Graphene-Enhanced Surface Plasmon Resonance Liquid Refractive Index Sensor Based on Photonic Crystal Fiber

A surface plasmon resonance (SPR) liquid refractive index sensor based on photonic crystal fiber (PCF) is proposed. The PCF is made of the exposed core structure, and the gold film is formed by electron beam evaporation within its defects. The sensitivity of the sensor is improved by coating graphen...

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Detalles Bibliográficos
Autores principales: Li, Bin, Cheng, Tonglei, Chen, Junxin, Yan, Xin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6749411/
https://www.ncbi.nlm.nih.gov/pubmed/31450768
http://dx.doi.org/10.3390/s19173666
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author Li, Bin
Cheng, Tonglei
Chen, Junxin
Yan, Xin
author_facet Li, Bin
Cheng, Tonglei
Chen, Junxin
Yan, Xin
author_sort Li, Bin
collection PubMed
description A surface plasmon resonance (SPR) liquid refractive index sensor based on photonic crystal fiber (PCF) is proposed. The PCF is made of the exposed core structure, and the gold film is formed by electron beam evaporation within its defects. The sensitivity of the sensor is improved by coating graphene on the surface of the gold film. The experimental results show that the sensitivity of the sensor is increased by 390 nm/RIU after the introduction of graphene, and finally to 2290 nm/RIU. The experiment and simulation have a good consistency. Significantly, the sensor can be reused, and the measurement accuracy can be maintained.
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spelling pubmed-67494112019-09-27 Graphene-Enhanced Surface Plasmon Resonance Liquid Refractive Index Sensor Based on Photonic Crystal Fiber Li, Bin Cheng, Tonglei Chen, Junxin Yan, Xin Sensors (Basel) Article A surface plasmon resonance (SPR) liquid refractive index sensor based on photonic crystal fiber (PCF) is proposed. The PCF is made of the exposed core structure, and the gold film is formed by electron beam evaporation within its defects. The sensitivity of the sensor is improved by coating graphene on the surface of the gold film. The experimental results show that the sensitivity of the sensor is increased by 390 nm/RIU after the introduction of graphene, and finally to 2290 nm/RIU. The experiment and simulation have a good consistency. Significantly, the sensor can be reused, and the measurement accuracy can be maintained. MDPI 2019-08-23 /pmc/articles/PMC6749411/ /pubmed/31450768 http://dx.doi.org/10.3390/s19173666 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
Li, Bin
Cheng, Tonglei
Chen, Junxin
Yan, Xin
Graphene-Enhanced Surface Plasmon Resonance Liquid Refractive Index Sensor Based on Photonic Crystal Fiber
title Graphene-Enhanced Surface Plasmon Resonance Liquid Refractive Index Sensor Based on Photonic Crystal Fiber
title_full Graphene-Enhanced Surface Plasmon Resonance Liquid Refractive Index Sensor Based on Photonic Crystal Fiber
title_fullStr Graphene-Enhanced Surface Plasmon Resonance Liquid Refractive Index Sensor Based on Photonic Crystal Fiber
title_full_unstemmed Graphene-Enhanced Surface Plasmon Resonance Liquid Refractive Index Sensor Based on Photonic Crystal Fiber
title_short Graphene-Enhanced Surface Plasmon Resonance Liquid Refractive Index Sensor Based on Photonic Crystal Fiber
title_sort graphene-enhanced surface plasmon resonance liquid refractive index sensor based on photonic crystal fiber
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6749411/
https://www.ncbi.nlm.nih.gov/pubmed/31450768
http://dx.doi.org/10.3390/s19173666
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AT chengtonglei grapheneenhancedsurfaceplasmonresonanceliquidrefractiveindexsensorbasedonphotoniccrystalfiber
AT chenjunxin grapheneenhancedsurfaceplasmonresonanceliquidrefractiveindexsensorbasedonphotoniccrystalfiber
AT yanxin grapheneenhancedsurfaceplasmonresonanceliquidrefractiveindexsensorbasedonphotoniccrystalfiber

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