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The Design and Research of a New Hybrid Surface Plasmonic Waveguide Nanolaser

Using the hybrid plasmonic waveguide (HPW) principle as a basis, a new planar symmetric Ag-dielectric-SiO(2) hybrid waveguide structure is designed and applied to nanolasers. First, the effects on the electric field distribution and the characteristic parameters of the waveguide structure of changes...

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Autores principales: Liu, Yahui, Li, Fang, Xu, Cheng, He, Zhichong, Gao, Jie, Zhou, Yunpeng, Xu, Litu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8123586/
https://www.ncbi.nlm.nih.gov/pubmed/33926014
http://dx.doi.org/10.3390/ma14092230
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author Liu, Yahui
Li, Fang
Xu, Cheng
He, Zhichong
Gao, Jie
Zhou, Yunpeng
Xu, Litu
author_facet Liu, Yahui
Li, Fang
Xu, Cheng
He, Zhichong
Gao, Jie
Zhou, Yunpeng
Xu, Litu
author_sort Liu, Yahui
collection PubMed
description Using the hybrid plasmonic waveguide (HPW) principle as a basis, a new planar symmetric Ag-dielectric-SiO(2) hybrid waveguide structure is designed and applied to nanolasers. First, the effects on the electric field distribution and the characteristic parameters of the waveguide structure of changes in the material, the nanometer radius, and the dielectric layer thickness were studied in detail using the finite element method with COMSOL Multiphysics software. The effects of two different dielectric materials on the HPW were studied. It was found that the waveguide performance could be improved effectively and the mode propagation loss was reduced when graphene was used as the dielectric, with the minimum effective propagation loss reaching 0.025. Second, the gain threshold and the quality factor of a nanolaser based on the proposed hybrid waveguide structure were analyzed. The results showed that the nanolaser has a lasing threshold of 1.76 μm(−1) and a quality factor of 109 when using the graphene dielectric. A low-loss, low-threshold laser was realized, and the mode field was constrained by deep sub-wavelength light confinement. This structure has broad future application prospects in the integrated optics field and provides ideas for the development of subminiature photonic devices and high-density integrated circuits.
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spelling pubmed-81235862021-05-16 The Design and Research of a New Hybrid Surface Plasmonic Waveguide Nanolaser Liu, Yahui Li, Fang Xu, Cheng He, Zhichong Gao, Jie Zhou, Yunpeng Xu, Litu Materials (Basel) Article Using the hybrid plasmonic waveguide (HPW) principle as a basis, a new planar symmetric Ag-dielectric-SiO(2) hybrid waveguide structure is designed and applied to nanolasers. First, the effects on the electric field distribution and the characteristic parameters of the waveguide structure of changes in the material, the nanometer radius, and the dielectric layer thickness were studied in detail using the finite element method with COMSOL Multiphysics software. The effects of two different dielectric materials on the HPW were studied. It was found that the waveguide performance could be improved effectively and the mode propagation loss was reduced when graphene was used as the dielectric, with the minimum effective propagation loss reaching 0.025. Second, the gain threshold and the quality factor of a nanolaser based on the proposed hybrid waveguide structure were analyzed. The results showed that the nanolaser has a lasing threshold of 1.76 μm(−1) and a quality factor of 109 when using the graphene dielectric. A low-loss, low-threshold laser was realized, and the mode field was constrained by deep sub-wavelength light confinement. This structure has broad future application prospects in the integrated optics field and provides ideas for the development of subminiature photonic devices and high-density integrated circuits. MDPI 2021-04-26 /pmc/articles/PMC8123586/ /pubmed/33926014 http://dx.doi.org/10.3390/ma14092230 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
Liu, Yahui
Li, Fang
Xu, Cheng
He, Zhichong
Gao, Jie
Zhou, Yunpeng
Xu, Litu
The Design and Research of a New Hybrid Surface Plasmonic Waveguide Nanolaser
title The Design and Research of a New Hybrid Surface Plasmonic Waveguide Nanolaser
title_full The Design and Research of a New Hybrid Surface Plasmonic Waveguide Nanolaser
title_fullStr The Design and Research of a New Hybrid Surface Plasmonic Waveguide Nanolaser
title_full_unstemmed The Design and Research of a New Hybrid Surface Plasmonic Waveguide Nanolaser
title_short The Design and Research of a New Hybrid Surface Plasmonic Waveguide Nanolaser
title_sort design and research of a new hybrid surface plasmonic waveguide nanolaser
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8123586/
https://www.ncbi.nlm.nih.gov/pubmed/33926014
http://dx.doi.org/10.3390/ma14092230
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