Simultaneous Measurements of Refractive Index and Methane Concentration through Electromagnetic Fano Resonance Coupling in All-Dielectric Metasurface

Dual-parameter measurements of refractive index and methane concentration based on electromagnetic Fano resonance are proposed. Two independent Fano resonances can be produced through electric dipole and toroidal dipole resonance in an all-dielectric metasurface separately. The linear relationship b...

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Autores principales: Liu, Hai, Zhang, Xu, Zhao, Benlei, Wu, Bo, Zhang, Hancheng, Tang, Shoufeng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Communication
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8196890/
https://www.ncbi.nlm.nih.gov/pubmed/34067329
http://dx.doi.org/10.3390/s21113612
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author Liu, Hai
Zhang, Xu
Zhao, Benlei
Wu, Bo
Zhang, Hancheng
Tang, Shoufeng
author_facet Liu, Hai
Zhang, Xu
Zhao, Benlei
Wu, Bo
Zhang, Hancheng
Tang, Shoufeng
author_sort Liu, Hai
collection PubMed
description Dual-parameter measurements of refractive index and methane concentration based on electromagnetic Fano resonance are proposed. Two independent Fano resonances can be produced through electric dipole and toroidal dipole resonance in an all-dielectric metasurface separately. The linear relationship between the spectral peak-shifts and the parameters to be measured will be obtained directly. The refractive index (RI) sensitivity and gas sensitivity are 1305.6 nm/refractive index unit (RIU), −0.295 nm/% for one resonance peak (dip1), and 456.6 nm/RIU, −0.61 nm/% for another resonance peak (dip2). Such a metasurface has simpler structure and higher sensitivity, which is beneficial for environmental gas monitoring or multi-parameter measurements.
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spelling pubmed-81968902021-06-13 Simultaneous Measurements of Refractive Index and Methane Concentration through Electromagnetic Fano Resonance Coupling in All-Dielectric Metasurface Liu, Hai Zhang, Xu Zhao, Benlei Wu, Bo Zhang, Hancheng Tang, Shoufeng Sensors (Basel) Communication Dual-parameter measurements of refractive index and methane concentration based on electromagnetic Fano resonance are proposed. Two independent Fano resonances can be produced through electric dipole and toroidal dipole resonance in an all-dielectric metasurface separately. The linear relationship between the spectral peak-shifts and the parameters to be measured will be obtained directly. The refractive index (RI) sensitivity and gas sensitivity are 1305.6 nm/refractive index unit (RIU), −0.295 nm/% for one resonance peak (dip1), and 456.6 nm/RIU, −0.61 nm/% for another resonance peak (dip2). Such a metasurface has simpler structure and higher sensitivity, which is beneficial for environmental gas monitoring or multi-parameter measurements. MDPI 2021-05-22 /pmc/articles/PMC8196890/ /pubmed/34067329 http://dx.doi.org/10.3390/s21113612 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Communication
Liu, Hai
Zhang, Xu
Zhao, Benlei
Wu, Bo
Zhang, Hancheng
Tang, Shoufeng
Simultaneous Measurements of Refractive Index and Methane Concentration through Electromagnetic Fano Resonance Coupling in All-Dielectric Metasurface
title Simultaneous Measurements of Refractive Index and Methane Concentration through Electromagnetic Fano Resonance Coupling in All-Dielectric Metasurface
title_full Simultaneous Measurements of Refractive Index and Methane Concentration through Electromagnetic Fano Resonance Coupling in All-Dielectric Metasurface
title_fullStr Simultaneous Measurements of Refractive Index and Methane Concentration through Electromagnetic Fano Resonance Coupling in All-Dielectric Metasurface
title_full_unstemmed Simultaneous Measurements of Refractive Index and Methane Concentration through Electromagnetic Fano Resonance Coupling in All-Dielectric Metasurface
title_short Simultaneous Measurements of Refractive Index and Methane Concentration through Electromagnetic Fano Resonance Coupling in All-Dielectric Metasurface
title_sort simultaneous measurements of refractive index and methane concentration through electromagnetic fano resonance coupling in all-dielectric metasurface
topic Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8196890/
https://www.ncbi.nlm.nih.gov/pubmed/34067329
http://dx.doi.org/10.3390/s21113612
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