Tunable high quality factor in two multimode plasmonic stubs waveguide

We numerically investigate the optical characteristics of a metal-dielectric-metal (MDM) waveguide side-coupled with two identical multimode stub resonators. Double plasmon-induced transparency (PIT) peaks with narrow full width at half maximum (FWHM) and high quality factor (Q-factor) can be observ...

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Autores principales: Chen, Zhiquan, Li, Hongjian, Zhan, Shiping, Li, Boxun, He, Zhihui, Xu, Hui, Zheng, Mingfei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4830990/
https://www.ncbi.nlm.nih.gov/pubmed/27075935
http://dx.doi.org/10.1038/srep24446
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author Chen, Zhiquan
Li, Hongjian
Zhan, Shiping
Li, Boxun
He, Zhihui
Xu, Hui
Zheng, Mingfei
author_facet Chen, Zhiquan
Li, Hongjian
Zhan, Shiping
Li, Boxun
He, Zhihui
Xu, Hui
Zheng, Mingfei
author_sort Chen, Zhiquan
collection PubMed
description We numerically investigate the optical characteristics of a metal-dielectric-metal (MDM) waveguide side-coupled with two identical multimode stub resonators. Double plasmon-induced transparency (PIT) peaks with narrow full width at half maximum (FWHM) and high quality factor (Q-factor) can be observed in this structure. The Q-factors of PIT peaks in two stub resonators system are larger than those in single stub resonator system. A multimode coupled-radiation oscillator theory (MC-ROT), which is derived from ROT, is proposed to analyze the spectral response in the multimode system for the first time. The analytical results are confirmed by the finite-difference time-domain (FDTD) simulation results. We can also find that the Q-factors of the two PIT peaks have an opposite evolution tendency with the change of the stubs parameters and the maximum can reach to 427. These results may provide some applications for ultrasensitive sensors, switches and efficient filters.
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spelling pubmed-48309902016-04-19 Tunable high quality factor in two multimode plasmonic stubs waveguide Chen, Zhiquan Li, Hongjian Zhan, Shiping Li, Boxun He, Zhihui Xu, Hui Zheng, Mingfei Sci Rep Article We numerically investigate the optical characteristics of a metal-dielectric-metal (MDM) waveguide side-coupled with two identical multimode stub resonators. Double plasmon-induced transparency (PIT) peaks with narrow full width at half maximum (FWHM) and high quality factor (Q-factor) can be observed in this structure. The Q-factors of PIT peaks in two stub resonators system are larger than those in single stub resonator system. A multimode coupled-radiation oscillator theory (MC-ROT), which is derived from ROT, is proposed to analyze the spectral response in the multimode system for the first time. The analytical results are confirmed by the finite-difference time-domain (FDTD) simulation results. We can also find that the Q-factors of the two PIT peaks have an opposite evolution tendency with the change of the stubs parameters and the maximum can reach to 427. These results may provide some applications for ultrasensitive sensors, switches and efficient filters. Nature Publishing Group 2016-04-14 /pmc/articles/PMC4830990/ /pubmed/27075935 http://dx.doi.org/10.1038/srep24446 Text en Copyright © 2016, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Chen, Zhiquan
Li, Hongjian
Zhan, Shiping
Li, Boxun
He, Zhihui
Xu, Hui
Zheng, Mingfei
Tunable high quality factor in two multimode plasmonic stubs waveguide
title Tunable high quality factor in two multimode plasmonic stubs waveguide
title_full Tunable high quality factor in two multimode plasmonic stubs waveguide
title_fullStr Tunable high quality factor in two multimode plasmonic stubs waveguide
title_full_unstemmed Tunable high quality factor in two multimode plasmonic stubs waveguide
title_short Tunable high quality factor in two multimode plasmonic stubs waveguide
title_sort tunable high quality factor in two multimode plasmonic stubs waveguide
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4830990/
https://www.ncbi.nlm.nih.gov/pubmed/27075935
http://dx.doi.org/10.1038/srep24446
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