$Enhanced Sensitivity and Detection of Near-Infrared Refractive Index Sensor with Plasmonic Multilayers$
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Enhanced Sensitivity and Detection of Near-Infrared Refractive Index Sensor with Plasmonic Multilayers

In this work, the multilayer of the surface plasmon resonance (SPR) sensor was optimized to achieve the maximum sensor sensitivity. By optimizing the thickness of the silver layer (Ag) and dielectric films (TiO<sub>2</sub> and AlAs), the optimum sensitivity of the SPR sensor could be obt...

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Autores principales:	Tan Tai Nguyen, Nguyen Van Sau, Quang Minh Ngo, Gauthier Eppe, Ngoc Quyen Tran, Nguyen Thi Phuong Anh
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	combination multilayer infrared laser sensor surface plasmon resonance Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/f5e446bc5c7d49fca6422d4c9ac0b71e
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spelling	oai:doaj.org-article:f5e446bc5c7d49fca6422d4c9ac0b71e2021-11-11T19:04:51ZEnhanced Sensitivity and Detection of Near-Infrared Refractive Index Sensor with Plasmonic Multilayers10.3390/s212170561424-8220https://doaj.org/article/f5e446bc5c7d49fca6422d4c9ac0b71e2021-10-01T00:00:00Zhttps://www.mdpi.com/1424-8220/21/21/7056https://doaj.org/toc/1424-8220In this work, the multilayer of the surface plasmon resonance (SPR) sensor was optimized to achieve the maximum sensor sensitivity. By optimizing the thickness of the silver layer (Ag) and dielectric films (TiO<sub>2</sub> and AlAs), the optimum sensitivity of the SPR sensor could be obtained. The performance of the SPR sensor proposed was compared with control simulations utilizing zinc oxide (ZnO) and molybdenum oxide (MoO<sub>3</sub>). The numerical results indicate that the figure-of-merits (FOM) of the SPR sensor was achieved around 150/RIU, corresponding to the sensor sensitivity of 162.79°/RIU with the optimized thicknesses of the TiO<sub>2</sub>, Ag, and AlAs layers of 140 nm, 60 nm, and 25 nm, respectively. This refractive index sensor shows the FOM to have high detection accuracy and high sensitivity that lead to finding potential application in bio-chemical detection with a small volume of liquid used in biological diagnosis.Tan Tai NguyenNguyen Van SauQuang Minh NgoGauthier EppeNgoc Quyen TranNguyen Thi Phuong AnhMDPI AGarticlecombinationmultilayerinfrared lasersensorsurface plasmon resonanceChemical technologyTP1-1185ENSensors, Vol 21, Iss 7056, p 7056 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	combination multilayer infrared laser sensor surface plasmon resonance Chemical technology TP1-1185
spellingShingle	combination multilayer infrared laser sensor surface plasmon resonance Chemical technology TP1-1185 Tan Tai Nguyen Nguyen Van Sau Quang Minh Ngo Gauthier Eppe Ngoc Quyen Tran Nguyen Thi Phuong Anh Enhanced Sensitivity and Detection of Near-Infrared Refractive Index Sensor with Plasmonic Multilayers
description	In this work, the multilayer of the surface plasmon resonance (SPR) sensor was optimized to achieve the maximum sensor sensitivity. By optimizing the thickness of the silver layer (Ag) and dielectric films (TiO<sub>2</sub> and AlAs), the optimum sensitivity of the SPR sensor could be obtained. The performance of the SPR sensor proposed was compared with control simulations utilizing zinc oxide (ZnO) and molybdenum oxide (MoO<sub>3</sub>). The numerical results indicate that the figure-of-merits (FOM) of the SPR sensor was achieved around 150/RIU, corresponding to the sensor sensitivity of 162.79°/RIU with the optimized thicknesses of the TiO<sub>2</sub>, Ag, and AlAs layers of 140 nm, 60 nm, and 25 nm, respectively. This refractive index sensor shows the FOM to have high detection accuracy and high sensitivity that lead to finding potential application in bio-chemical detection with a small volume of liquid used in biological diagnosis.
format	article
author	Tan Tai Nguyen Nguyen Van Sau Quang Minh Ngo Gauthier Eppe Ngoc Quyen Tran Nguyen Thi Phuong Anh
author_facet	Tan Tai Nguyen Nguyen Van Sau Quang Minh Ngo Gauthier Eppe Ngoc Quyen Tran Nguyen Thi Phuong Anh
author_sort	Tan Tai Nguyen
title	Enhanced Sensitivity and Detection of Near-Infrared Refractive Index Sensor with Plasmonic Multilayers
title_short	Enhanced Sensitivity and Detection of Near-Infrared Refractive Index Sensor with Plasmonic Multilayers
title_full	Enhanced Sensitivity and Detection of Near-Infrared Refractive Index Sensor with Plasmonic Multilayers
title_fullStr	Enhanced Sensitivity and Detection of Near-Infrared Refractive Index Sensor with Plasmonic Multilayers
title_full_unstemmed	Enhanced Sensitivity and Detection of Near-Infrared Refractive Index Sensor with Plasmonic Multilayers
title_sort	enhanced sensitivity and detection of near-infrared refractive index sensor with plasmonic multilayers
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/f5e446bc5c7d49fca6422d4c9ac0b71e
work_keys_str_mv	AT tantainguyen enhancedsensitivityanddetectionofnearinfraredrefractiveindexsensorwithplasmonicmultilayers AT nguyenvansau enhancedsensitivityanddetectionofnearinfraredrefractiveindexsensorwithplasmonicmultilayers AT quangminhngo enhancedsensitivityanddetectionofnearinfraredrefractiveindexsensorwithplasmonicmultilayers AT gauthiereppe enhancedsensitivityanddetectionofnearinfraredrefractiveindexsensorwithplasmonicmultilayers AT ngocquyentran enhancedsensitivityanddetectionofnearinfraredrefractiveindexsensorwithplasmonicmultilayers AT nguyenthiphuonganh enhancedsensitivityanddetectionofnearinfraredrefractiveindexsensorwithplasmonicmultilayers
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Enhanced Sensitivity and Detection of Near-Infrared Refractive Index Sensor with Plasmonic Multilayers

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