A Triple-Band Hybridization Coherent Perfect Absorber Based on Graphene Metamaterial
In this paper, a triple-band hybridization coherent perfect absorber based on graphene metamaterial is proposed, which consists of graphene concentric nanorings with different sizes and a metallic mirror separated by SiO<sub>2</sub> layer. Based on the finite-difference time-domain (FDTD...
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doaj-fbfe0431404349f2ae0539a894ecaad32020-11-25T02:23:48ZengMDPI AGApplied Sciences2076-34172020-03-01105175010.3390/app10051750app10051750A Triple-Band Hybridization Coherent Perfect Absorber Based on Graphene MetamaterialXinpeng Jiang0Zhaojian Zhang1Kui Wen2Guofeng Li3Jie He4Junbo Yang5College of Liberal Arts and Sciences, National University of Defense Technology, Changsha 410073, ChinaCollege of Liberal Arts and Sciences, National University of Defense Technology, Changsha 410073, ChinaCollege of Liberal Arts and Sciences, National University of Defense Technology, Changsha 410073, ChinaCollege of Liberal Arts and Sciences, National University of Defense Technology, Changsha 410073, ChinaCollege of Liberal Arts and Sciences, National University of Defense Technology, Changsha 410073, ChinaCenter of Material Science, National University of Defense Technology, Changsha 410073, ChinaIn this paper, a triple-band hybridization coherent perfect absorber based on graphene metamaterial is proposed, which consists of graphene concentric nanorings with different sizes and a metallic mirror separated by SiO<sub>2</sub> layer. Based on the finite-difference time-domain (FDTD) solution, triple-band coherent perfect absorption is achieved at frequencies from 0.6 THz to 1.8 THz, which results from the surface plasmon resonance hybridization. The wavelength of the absorption peak can be rapidly changed by varying the Fermi level of graphene. Most importantly, the wavelength of the absorption peak can be independently tuned by varying the Fermi level of the single graphene nanoring. Moreover, the triple hybridization perfect absorber is angle-insensitive because of the perfect symmetry structure of the graphene nanorings. Therefore, our results may widely inspire optoelectronic and micro-nano applications, such as cloaking, tunable sensor, etc.https://www.mdpi.com/2076-3417/10/5/1750terahertzgraphenehybridizationperfect absorber |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Xinpeng Jiang Zhaojian Zhang Kui Wen Guofeng Li Jie He Junbo Yang |
spellingShingle |
Xinpeng Jiang Zhaojian Zhang Kui Wen Guofeng Li Jie He Junbo Yang A Triple-Band Hybridization Coherent Perfect Absorber Based on Graphene Metamaterial Applied Sciences terahertz graphene hybridization perfect absorber |
author_facet |
Xinpeng Jiang Zhaojian Zhang Kui Wen Guofeng Li Jie He Junbo Yang |
author_sort |
Xinpeng Jiang |
title |
A Triple-Band Hybridization Coherent Perfect Absorber Based on Graphene Metamaterial |
title_short |
A Triple-Band Hybridization Coherent Perfect Absorber Based on Graphene Metamaterial |
title_full |
A Triple-Band Hybridization Coherent Perfect Absorber Based on Graphene Metamaterial |
title_fullStr |
A Triple-Band Hybridization Coherent Perfect Absorber Based on Graphene Metamaterial |
title_full_unstemmed |
A Triple-Band Hybridization Coherent Perfect Absorber Based on Graphene Metamaterial |
title_sort |
triple-band hybridization coherent perfect absorber based on graphene metamaterial |
publisher |
MDPI AG |
series |
Applied Sciences |
issn |
2076-3417 |
publishDate |
2020-03-01 |
description |
In this paper, a triple-band hybridization coherent perfect absorber based on graphene metamaterial is proposed, which consists of graphene concentric nanorings with different sizes and a metallic mirror separated by SiO<sub>2</sub> layer. Based on the finite-difference time-domain (FDTD) solution, triple-band coherent perfect absorption is achieved at frequencies from 0.6 THz to 1.8 THz, which results from the surface plasmon resonance hybridization. The wavelength of the absorption peak can be rapidly changed by varying the Fermi level of graphene. Most importantly, the wavelength of the absorption peak can be independently tuned by varying the Fermi level of the single graphene nanoring. Moreover, the triple hybridization perfect absorber is angle-insensitive because of the perfect symmetry structure of the graphene nanorings. Therefore, our results may widely inspire optoelectronic and micro-nano applications, such as cloaking, tunable sensor, etc. |
topic |
terahertz graphene hybridization perfect absorber |
url |
https://www.mdpi.com/2076-3417/10/5/1750 |
work_keys_str_mv |
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