Plasmonic Refractive Index Sensor with High Figure of Merit Based on Concentric-Rings Resonator

A plasmonic refractive index (RI) sensor based on metal-insulator-metal (MIM) waveguide coupled with concentric double rings resonator (CDRR) is proposed and investigated numerically. Utilizing the novel supermodes of the CDRR, the FWHM of the resonant wavelength can be modulated, and a sensitivity...

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Autores principales: Zhang, Zhaojian, Yang, Junbo, He, Xin, Zhang, Jingjing, Huang, Jie, Chen, Dingbo, Han, Yunxin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5796386/
https://www.ncbi.nlm.nih.gov/pubmed/29300331
http://dx.doi.org/10.3390/s18010116
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author Zhang, Zhaojian
Yang, Junbo
He, Xin
Zhang, Jingjing
Huang, Jie
Chen, Dingbo
Han, Yunxin
author_facet Zhang, Zhaojian
Yang, Junbo
He, Xin
Zhang, Jingjing
Huang, Jie
Chen, Dingbo
Han, Yunxin
author_sort Zhang, Zhaojian
collection PubMed
description A plasmonic refractive index (RI) sensor based on metal-insulator-metal (MIM) waveguide coupled with concentric double rings resonator (CDRR) is proposed and investigated numerically. Utilizing the novel supermodes of the CDRR, the FWHM of the resonant wavelength can be modulated, and a sensitivity of 1060 nm/RIU with high figure of merit (FOM) 203.8 is realized in the near-infrared region. The unordinary modes, as well as the influence of structure parameters on the sensing performance, are also discussed. Such plasmonic sensor with simple framework and high optical resolution could be applied to on-chip sensing systems and integrated optical circuits. Besides, the special cases of bio-sensing and triple rings are also discussed.
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spelling pubmed-57963862018-02-13 Plasmonic Refractive Index Sensor with High Figure of Merit Based on Concentric-Rings Resonator Zhang, Zhaojian Yang, Junbo He, Xin Zhang, Jingjing Huang, Jie Chen, Dingbo Han, Yunxin Sensors (Basel) Article A plasmonic refractive index (RI) sensor based on metal-insulator-metal (MIM) waveguide coupled with concentric double rings resonator (CDRR) is proposed and investigated numerically. Utilizing the novel supermodes of the CDRR, the FWHM of the resonant wavelength can be modulated, and a sensitivity of 1060 nm/RIU with high figure of merit (FOM) 203.8 is realized in the near-infrared region. The unordinary modes, as well as the influence of structure parameters on the sensing performance, are also discussed. Such plasmonic sensor with simple framework and high optical resolution could be applied to on-chip sensing systems and integrated optical circuits. Besides, the special cases of bio-sensing and triple rings are also discussed. MDPI 2018-01-04 /pmc/articles/PMC5796386/ /pubmed/29300331 http://dx.doi.org/10.3390/s18010116 Text en © 2018 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
Zhang, Zhaojian
Yang, Junbo
He, Xin
Zhang, Jingjing
Huang, Jie
Chen, Dingbo
Han, Yunxin
Plasmonic Refractive Index Sensor with High Figure of Merit Based on Concentric-Rings Resonator
title Plasmonic Refractive Index Sensor with High Figure of Merit Based on Concentric-Rings Resonator
title_full Plasmonic Refractive Index Sensor with High Figure of Merit Based on Concentric-Rings Resonator
title_fullStr Plasmonic Refractive Index Sensor with High Figure of Merit Based on Concentric-Rings Resonator
title_full_unstemmed Plasmonic Refractive Index Sensor with High Figure of Merit Based on Concentric-Rings Resonator
title_short Plasmonic Refractive Index Sensor with High Figure of Merit Based on Concentric-Rings Resonator
title_sort plasmonic refractive index sensor with high figure of merit based on concentric-rings resonator
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5796386/
https://www.ncbi.nlm.nih.gov/pubmed/29300331
http://dx.doi.org/10.3390/s18010116
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