Refractive index sensor based on Fano resonance in a ring with a rectangular cavity structure

Refractive index sensor based on Fano resonance in a ring with a rectangular cavity structure

This paper presents an innovative plasmonics-based refractive index sensor structure that consists of a circular ring containing a rectangular cavity (CRRC) and a metal–insulator–metal (MIM) waveguide with two rectangular stubs. The narrowband mode of the CRRC interacts with the broadband mode of th...

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Autores principales: Xiaoyu Zhang, Shubin Yan, Tingsong Li, Pengwei Liu, Yi Zhang, Lifang Shen, Yifeng Ren, Ertian Hua
Formato: article
Lenguaje:EN
Publicado: Elsevier 2021
Materias:
Sensor
Fano resonance
Electrolyte concentration measurement
MIM waveguide
Physics
QC1-999
Acceso en línea:https://doaj.org/article/f8ba885c481d47aebd9f3b0f02506a6e
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spelling oai:doaj.org-article:f8ba885c481d47aebd9f3b0f02506a6e2021-11-22T04:24:37ZRefractive index sensor based on Fano resonance in a ring with a rectangular cavity structure2211-379710.1016/j.rinp.2021.104997https://doaj.org/article/f8ba885c481d47aebd9f3b0f02506a6e2021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2211379721010019https://doaj.org/toc/2211-3797This paper presents an innovative plasmonics-based refractive index sensor structure that consists of a circular ring containing a rectangular cavity (CRRC) and a metal–insulator–metal (MIM) waveguide with two rectangular stubs. The narrowband mode of the CRRC interacts with the broadband mode of the bus waveguide stub to generate sharp and asymmetric Fano resonance. The transmission characteristics were simulated using the finite element method. A maximum refractive-index sensor sensitivity of 2300 nm/RIU and figure of merit (FOM) of 57.5 were achieved. The proposed structure is simple yet highly sensitive and has the potential to be useful in detecting electrolyte concentration in blood. The results of this study provide a foundation for developing highly sensitive plasmonic sensors biomedical applications.Xiaoyu ZhangShubin YanTingsong LiPengwei LiuYi ZhangLifang ShenYifeng RenErtian HuaElsevierarticleSensorFano resonanceElectrolyte concentration measurementMIM waveguidePhysicsQC1-999ENResults in Physics, Vol 31, Iss , Pp 104997- (2021)
institution DOAJ
collection DOAJ
language EN
topic Sensor
Fano resonance
Electrolyte concentration measurement
MIM waveguide
Physics
QC1-999
spellingShingle Sensor
Fano resonance
Electrolyte concentration measurement
MIM waveguide
Physics
QC1-999
Xiaoyu Zhang
Shubin Yan
Tingsong Li
Pengwei Liu
Yi Zhang
Lifang Shen
Yifeng Ren
Ertian Hua
Refractive index sensor based on Fano resonance in a ring with a rectangular cavity structure
description This paper presents an innovative plasmonics-based refractive index sensor structure that consists of a circular ring containing a rectangular cavity (CRRC) and a metal–insulator–metal (MIM) waveguide with two rectangular stubs. The narrowband mode of the CRRC interacts with the broadband mode of the bus waveguide stub to generate sharp and asymmetric Fano resonance. The transmission characteristics were simulated using the finite element method. A maximum refractive-index sensor sensitivity of 2300 nm/RIU and figure of merit (FOM) of 57.5 were achieved. The proposed structure is simple yet highly sensitive and has the potential to be useful in detecting electrolyte concentration in blood. The results of this study provide a foundation for developing highly sensitive plasmonic sensors biomedical applications.
format article
author Xiaoyu Zhang
Shubin Yan
Tingsong Li
Pengwei Liu
Yi Zhang
Lifang Shen
Yifeng Ren
Ertian Hua
author_facet Xiaoyu Zhang
Shubin Yan
Tingsong Li
Pengwei Liu
Yi Zhang
Lifang Shen
Yifeng Ren
Ertian Hua
author_sort Xiaoyu Zhang
title Refractive index sensor based on Fano resonance in a ring with a rectangular cavity structure
title_short Refractive index sensor based on Fano resonance in a ring with a rectangular cavity structure
title_full Refractive index sensor based on Fano resonance in a ring with a rectangular cavity structure
title_fullStr Refractive index sensor based on Fano resonance in a ring with a rectangular cavity structure
title_full_unstemmed Refractive index sensor based on Fano resonance in a ring with a rectangular cavity structure
title_sort refractive index sensor based on fano resonance in a ring with a rectangular cavity structure
publisher Elsevier
publishDate 2021
url https://doaj.org/article/f8ba885c481d47aebd9f3b0f02506a6e
work_keys_str_mv AT xiaoyuzhang refractiveindexsensorbasedonfanoresonanceinaringwitharectangularcavitystructure
AT shubinyan refractiveindexsensorbasedonfanoresonanceinaringwitharectangularcavitystructure
AT tingsongli refractiveindexsensorbasedonfanoresonanceinaringwitharectangularcavitystructure
AT pengweiliu refractiveindexsensorbasedonfanoresonanceinaringwitharectangularcavitystructure
AT yizhang refractiveindexsensorbasedonfanoresonanceinaringwitharectangularcavitystructure
AT lifangshen refractiveindexsensorbasedonfanoresonanceinaringwitharectangularcavitystructure
AT yifengren refractiveindexsensorbasedonfanoresonanceinaringwitharectangularcavitystructure
AT ertianhua refractiveindexsensorbasedonfanoresonanceinaringwitharectangularcavitystructure
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