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

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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Bibliographic Details
Main Authors: Bin Li, Tonglei Cheng, Junxin Chen, Xin Yan
Format: Article
Language:English
Published: MDPI AG 2019-08-01
Series:Sensors
Subjects:
photonic crystal fiber
surface plasmon resonance
graphene
refractive index
Online Access:https://www.mdpi.com/1424-8220/19/17/3666
id doaj-5be22a361b07438f81690bb6f2b4c140
record_format Article
spelling doaj-5be22a361b07438f81690bb6f2b4c1402020-11-25T02:29:25ZengMDPI AGSensors1424-82202019-08-011917366610.3390/s19173666s19173666Graphene-Enhanced Surface Plasmon Resonance Liquid Refractive Index Sensor Based on Photonic Crystal FiberBin Li0Tonglei Cheng1Junxin Chen2Xin Yan3College of Information Science and Engineering, State Key Laboratory of Synthetical Automation for Process Industries, Northeastern University, Shenyang 110819, ChinaCollege of Information Science and Engineering, State Key Laboratory of Synthetical Automation for Process Industries, Northeastern University, Shenyang 110819, ChinaCollege of Information Science and Engineering, State Key Laboratory of Synthetical Automation for Process Industries, Northeastern University, Shenyang 110819, ChinaCollege of Information Science and Engineering, State Key Laboratory of Synthetical Automation for Process Industries, Northeastern University, Shenyang 110819, ChinaA 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.https://www.mdpi.com/1424-8220/19/17/3666photonic crystal fibersurface plasmon resonancegraphenerefractive index
collection DOAJ
language English
format Article
sources DOAJ
author Bin Li
Tonglei Cheng
Junxin Chen
Xin Yan
spellingShingle Bin Li
Tonglei Cheng
Junxin Chen
Xin Yan
Graphene-Enhanced Surface Plasmon Resonance Liquid Refractive Index Sensor Based on Photonic Crystal Fiber
Sensors
photonic crystal fiber
surface plasmon resonance
graphene
refractive index
author_facet Bin Li
Tonglei Cheng
Junxin Chen
Xin Yan
author_sort Bin Li
title 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_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_sort graphene-enhanced surface plasmon resonance liquid refractive index sensor based on photonic crystal fiber
publisher MDPI AG
series Sensors
issn 1424-8220
publishDate 2019-08-01
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.
topic photonic crystal fiber
surface plasmon resonance
graphene
refractive index
url https://www.mdpi.com/1424-8220/19/17/3666
work_keys_str_mv AT binli grapheneenhancedsurfaceplasmonresonanceliquidrefractiveindexsensorbasedonphotoniccrystalfiber
AT tongleicheng grapheneenhancedsurfaceplasmonresonanceliquidrefractiveindexsensorbasedonphotoniccrystalfiber
AT junxinchen grapheneenhancedsurfaceplasmonresonanceliquidrefractiveindexsensorbasedonphotoniccrystalfiber
AT xinyan grapheneenhancedsurfaceplasmonresonanceliquidrefractiveindexsensorbasedonphotoniccrystalfiber
_version_ 1724833110996025344

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