Tunable and Anisotropic Dual-Band Metamaterial Absorber Using Elliptical Graphene-Black Phosphorus Pairs
Abstract 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 ind...
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SpringerOpen
2019-11-01
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| Series: | Nanoscale Research Letters |
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| Online Access: | http://link.springer.com/article/10.1186/s11671-019-3182-9 |
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doaj-9e482dde7ade4acf94d799160ecbf1e52020-11-25T04:11:46ZengSpringerOpenNanoscale Research Letters1931-75731556-276X2019-11-011411710.1186/s11671-019-3182-9Tunable and Anisotropic Dual-Band Metamaterial Absorber Using Elliptical Graphene-Black Phosphorus PairsYijun Cai0Shuangluan Li1Yuanguo Zhou2Xuanyu Wang3Kai-Da Xu4Rongrong Guo5William T. Joines6Fujian Provincial Key Laboratory of Optoelectronic Technology and Devices, Xiamen University of TechnologyCollege of Communication and Information Engineering, Xi’an University of Science and TechnologyCollege of Communication and Information Engineering, Xi’an University of Science and TechnologyFujian Provincial Key Laboratory of Optoelectronic Technology and Devices, Xiamen University of TechnologyDepartment of Electrical and Computer Engineering, University of Wisconsin–MadisonFujian Provincial Key Laboratory of Optoelectronic Technology and Devices, Xiamen University of TechnologyDepartment of Electrical and Computer Engineering, Duke UniversityAbstract 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.http://link.springer.com/article/10.1186/s11671-019-3182-9Metamaterial absorberTwo-dimensional materialDual-band absorberSurface plasmons |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Yijun Cai Shuangluan Li Yuanguo Zhou Xuanyu Wang Kai-Da Xu Rongrong Guo William T. Joines |
| spellingShingle |
Yijun Cai Shuangluan Li Yuanguo Zhou Xuanyu Wang Kai-Da Xu Rongrong Guo William T. Joines Tunable and Anisotropic Dual-Band Metamaterial Absorber Using Elliptical Graphene-Black Phosphorus Pairs Nanoscale Research Letters Metamaterial absorber Two-dimensional material Dual-band absorber Surface plasmons |
| author_facet |
Yijun Cai Shuangluan Li Yuanguo Zhou Xuanyu Wang Kai-Da Xu Rongrong Guo William T. Joines |
| author_sort |
Yijun Cai |
| title |
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_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_sort |
tunable and anisotropic dual-band metamaterial absorber using elliptical graphene-black phosphorus pairs |
| publisher |
SpringerOpen |
| series |
Nanoscale Research Letters |
| issn |
1931-7573 1556-276X |
| publishDate |
2019-11-01 |
| description |
Abstract 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. |
| topic |
Metamaterial absorber Two-dimensional material Dual-band absorber Surface plasmons |
| url |
http://link.springer.com/article/10.1186/s11671-019-3182-9 |
| work_keys_str_mv |
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