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A Nanosensor Based on a Metal-Insulator-Metal Bus Waveguide with a Stub Coupled with a Racetrack Ring Resonator

A nanostructure comprising the metal-insulator-metal (MIM) bus waveguide with a stub coupled with a racetrack ring resonator is designed. The spectral characteristics of the proposed structure are analyzed via the finite element method (FEM). The results show that there is a sharp Fano resonance pro...

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Detalles Bibliográficos
Autores principales: Shi, Haoran, Yan, Shubin, Yang, Xiaoyu, Wu, Xiushan, Wu, Wenchang, Hua, Ertian
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8145901/
https://www.ncbi.nlm.nih.gov/pubmed/33925557
http://dx.doi.org/10.3390/mi12050495
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author Shi, Haoran
Yan, Shubin
Yang, Xiaoyu
Wu, Xiushan
Wu, Wenchang
Hua, Ertian
author_facet Shi, Haoran
Yan, Shubin
Yang, Xiaoyu
Wu, Xiushan
Wu, Wenchang
Hua, Ertian
author_sort Shi, Haoran
collection PubMed
description A nanostructure comprising the metal-insulator-metal (MIM) bus waveguide with a stub coupled with a racetrack ring resonator is designed. The spectral characteristics of the proposed structure are analyzed via the finite element method (FEM). The results show that there is a sharp Fano resonance profile and electromagnetically induced transparency (EIT)-like effect, which are excited by a coupling between the MIM bus waveguide with a stub and the racetrack ring resonator. The normalized H(Z) field is affected by the displacement of the ring from the stub x greatly. The influence of the geometric parameters of the sensor design on the sensing performance is discussed. The sensitivity of the proposed structure can reach 1774 nm/RIU with a figure of merit of 61. The proposed structure has potential in nanophotonic sensing applications.
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spelling pubmed-81459012021-05-26 A Nanosensor Based on a Metal-Insulator-Metal Bus Waveguide with a Stub Coupled with a Racetrack Ring Resonator Shi, Haoran Yan, Shubin Yang, Xiaoyu Wu, Xiushan Wu, Wenchang Hua, Ertian Micromachines (Basel) Article A nanostructure comprising the metal-insulator-metal (MIM) bus waveguide with a stub coupled with a racetrack ring resonator is designed. The spectral characteristics of the proposed structure are analyzed via the finite element method (FEM). The results show that there is a sharp Fano resonance profile and electromagnetically induced transparency (EIT)-like effect, which are excited by a coupling between the MIM bus waveguide with a stub and the racetrack ring resonator. The normalized H(Z) field is affected by the displacement of the ring from the stub x greatly. The influence of the geometric parameters of the sensor design on the sensing performance is discussed. The sensitivity of the proposed structure can reach 1774 nm/RIU with a figure of merit of 61. The proposed structure has potential in nanophotonic sensing applications. MDPI 2021-04-27 /pmc/articles/PMC8145901/ /pubmed/33925557 http://dx.doi.org/10.3390/mi12050495 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 Article
Shi, Haoran
Yan, Shubin
Yang, Xiaoyu
Wu, Xiushan
Wu, Wenchang
Hua, Ertian
A Nanosensor Based on a Metal-Insulator-Metal Bus Waveguide with a Stub Coupled with a Racetrack Ring Resonator
title A Nanosensor Based on a Metal-Insulator-Metal Bus Waveguide with a Stub Coupled with a Racetrack Ring Resonator
title_full A Nanosensor Based on a Metal-Insulator-Metal Bus Waveguide with a Stub Coupled with a Racetrack Ring Resonator
title_fullStr A Nanosensor Based on a Metal-Insulator-Metal Bus Waveguide with a Stub Coupled with a Racetrack Ring Resonator
title_full_unstemmed A Nanosensor Based on a Metal-Insulator-Metal Bus Waveguide with a Stub Coupled with a Racetrack Ring Resonator
title_short A Nanosensor Based on a Metal-Insulator-Metal Bus Waveguide with a Stub Coupled with a Racetrack Ring Resonator
title_sort nanosensor based on a metal-insulator-metal bus waveguide with a stub coupled with a racetrack ring resonator
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8145901/
https://www.ncbi.nlm.nih.gov/pubmed/33925557
http://dx.doi.org/10.3390/mi12050495
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