Tunable and Anisotropic Dual-Band Metamaterial Absorber Using Elliptical Graphene-Black Phosphorus Pairs

We numerically propose a dual-band absorber in the infrared region based on periodic elliptical graphene-black phosphorus (BP) pairs. The proposed absorber exhibits near-unity anisotropic absorption for both resonances due to the combination of graphene and BP. Each of the resonances is independentl...

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Detalles Bibliográficos
Autores principales: Cai, Yijun, Li, Shuangluan, Zhou, Yuanguo, Wang, Xuanyu, Xu, Kai-Da, Guo, Rongrong, Joines, William T.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2019
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6872686/
https://www.ncbi.nlm.nih.gov/pubmed/31754903
http://dx.doi.org/10.1186/s11671-019-3182-9
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author Cai, Yijun
Li, Shuangluan
Zhou, Yuanguo
Wang, Xuanyu
Xu, Kai-Da
Guo, Rongrong
Joines, William T.
author_facet Cai, Yijun
Li, Shuangluan
Zhou, Yuanguo
Wang, Xuanyu
Xu, Kai-Da
Guo, Rongrong
Joines, William T.
author_sort Cai, Yijun
collection PubMed
description We numerically propose a dual-band absorber in the infrared region based on periodic elliptical graphene-black phosphorus (BP) pairs. The proposed absorber exhibits near-unity anisotropic absorption for both resonances due to the combination of graphene and BP. Each of the resonances is independently tunable via adjusting the geometric parameters. Besides, doping levels of graphene and BP can also tune resonant properties effectively. By analyzing the electric field distributions, surface plasmon resonances are observed in the graphene-BP ellipses, contributing to the strong and anisotropic plasmonic response. Moreover, the robustness for incident angles and polarization sensitivity are also illustrated.
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spelling pubmed-68726862019-12-06 Tunable and Anisotropic Dual-Band Metamaterial Absorber Using Elliptical Graphene-Black Phosphorus Pairs Cai, Yijun Li, Shuangluan Zhou, Yuanguo Wang, Xuanyu Xu, Kai-Da Guo, Rongrong Joines, William T. Nanoscale Res Lett Nano Express We numerically propose a dual-band absorber in the infrared region based on periodic elliptical graphene-black phosphorus (BP) pairs. The proposed absorber exhibits near-unity anisotropic absorption for both resonances due to the combination of graphene and BP. Each of the resonances is independently tunable via adjusting the geometric parameters. Besides, doping levels of graphene and BP can also tune resonant properties effectively. By analyzing the electric field distributions, surface plasmon resonances are observed in the graphene-BP ellipses, contributing to the strong and anisotropic plasmonic response. Moreover, the robustness for incident angles and polarization sensitivity are also illustrated. Springer US 2019-11-21 /pmc/articles/PMC6872686/ /pubmed/31754903 http://dx.doi.org/10.1186/s11671-019-3182-9 Text en © The Author(s). 2019 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Nano Express
Cai, Yijun
Li, Shuangluan
Zhou, Yuanguo
Wang, Xuanyu
Xu, Kai-Da
Guo, Rongrong
Joines, William T.
Tunable and Anisotropic Dual-Band Metamaterial Absorber Using Elliptical Graphene-Black Phosphorus Pairs
title Tunable and Anisotropic Dual-Band Metamaterial Absorber Using Elliptical Graphene-Black Phosphorus Pairs
title_full Tunable and Anisotropic Dual-Band Metamaterial Absorber Using Elliptical Graphene-Black Phosphorus Pairs
title_fullStr Tunable and Anisotropic Dual-Band Metamaterial Absorber Using Elliptical Graphene-Black Phosphorus Pairs
title_full_unstemmed Tunable and Anisotropic Dual-Band Metamaterial Absorber Using Elliptical Graphene-Black Phosphorus Pairs
title_short Tunable and Anisotropic Dual-Band Metamaterial Absorber Using Elliptical Graphene-Black Phosphorus Pairs
title_sort tunable and anisotropic dual-band metamaterial absorber using elliptical graphene-black phosphorus pairs
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6872686/
https://www.ncbi.nlm.nih.gov/pubmed/31754903
http://dx.doi.org/10.1186/s11671-019-3182-9
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