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Tuning Multiple Fano Resonances for On-Chip Sensors in a Plasmonic System

This paper proposed a plasmonic resonator system, consisting of a metal-insulator-metal structure and two stubs, and a Fano resonance arose in its transmittance, which resulted from the coupling between the two stubs. On the basis of the proposed structure, a circle and a ring cavity are separately...

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Detalles Bibliográficos
Autores principales: Yu, Shilin, Zhao, Tonggang, Yu, Jianguo, Pan, Dafa
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6480261/
https://www.ncbi.nlm.nih.gov/pubmed/30935140
http://dx.doi.org/10.3390/s19071559
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author Yu, Shilin
Zhao, Tonggang
Yu, Jianguo
Pan, Dafa
author_facet Yu, Shilin
Zhao, Tonggang
Yu, Jianguo
Pan, Dafa
author_sort Yu, Shilin
collection PubMed
description This paper proposed a plasmonic resonator system, consisting of a metal-insulator-metal structure and two stubs, and a Fano resonance arose in its transmittance, which resulted from the coupling between the two stubs. On the basis of the proposed structure, a circle and a ring cavity are separately added above the stubs to create different coupled plasmonic structures, providing triple and quadruple Fano resonances, respectively. Additionally, by adjusting the geometric parameters of the system, multiple Fano Resonances obtained can be tuned. The proposed structure can be served as a high efficient refractive index sensor, yielding a sensitivity of 2000 nm/RIU and figure of merit (FOM) of [Formula: see text] and performing better than most of the similar structures. It is believed that the proposed structure may support substantial applications for on-chip sensors, slow light and nonlinear devices in highly integrated photonic circuits.
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spelling pubmed-64802612019-04-29 Tuning Multiple Fano Resonances for On-Chip Sensors in a Plasmonic System Yu, Shilin Zhao, Tonggang Yu, Jianguo Pan, Dafa Sensors (Basel) Article This paper proposed a plasmonic resonator system, consisting of a metal-insulator-metal structure and two stubs, and a Fano resonance arose in its transmittance, which resulted from the coupling between the two stubs. On the basis of the proposed structure, a circle and a ring cavity are separately added above the stubs to create different coupled plasmonic structures, providing triple and quadruple Fano resonances, respectively. Additionally, by adjusting the geometric parameters of the system, multiple Fano Resonances obtained can be tuned. The proposed structure can be served as a high efficient refractive index sensor, yielding a sensitivity of 2000 nm/RIU and figure of merit (FOM) of [Formula: see text] and performing better than most of the similar structures. It is believed that the proposed structure may support substantial applications for on-chip sensors, slow light and nonlinear devices in highly integrated photonic circuits. MDPI 2019-03-31 /pmc/articles/PMC6480261/ /pubmed/30935140 http://dx.doi.org/10.3390/s19071559 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
Yu, Shilin
Zhao, Tonggang
Yu, Jianguo
Pan, Dafa
Tuning Multiple Fano Resonances for On-Chip Sensors in a Plasmonic System
title Tuning Multiple Fano Resonances for On-Chip Sensors in a Plasmonic System
title_full Tuning Multiple Fano Resonances for On-Chip Sensors in a Plasmonic System
title_fullStr Tuning Multiple Fano Resonances for On-Chip Sensors in a Plasmonic System
title_full_unstemmed Tuning Multiple Fano Resonances for On-Chip Sensors in a Plasmonic System
title_short Tuning Multiple Fano Resonances for On-Chip Sensors in a Plasmonic System
title_sort tuning multiple fano resonances for on-chip sensors in a plasmonic system
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6480261/
https://www.ncbi.nlm.nih.gov/pubmed/30935140
http://dx.doi.org/10.3390/s19071559
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