Perfect double-layer terahertz absorber based on graphene metamaterial
Using bilayer graphene structures (L-type and disk-type structures), we numerically demonstrate a tunable single-band terahertz metamaterial absorber with nearly perfect (100%) absorption by continuously adjusting the graphene Fermi energy parameters to determine the maximum absorption rate, the cor...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2022-08-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/5.0099346 |
| _version_ | 1818031710894292992 |
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| author | Haoduo Jia Xin Tang Hui Li Ziwen Qian Ming Li Dai Wu Peng Li Jianxin Wang Xinghua Zhu Dingyu Yang |
| author_facet | Haoduo Jia Xin Tang Hui Li Ziwen Qian Ming Li Dai Wu Peng Li Jianxin Wang Xinghua Zhu Dingyu Yang |
| author_sort | Haoduo Jia |
| collection | DOAJ |
| description | Using bilayer graphene structures (L-type and disk-type structures), we numerically demonstrate a tunable single-band terahertz metamaterial absorber with nearly perfect (100%) absorption by continuously adjusting the graphene Fermi energy parameters to determine the maximum absorption rate, the corresponding center frequency, and bandwidth. Graphene distinct dielectric–metal transition properties make it possible to achieve tunable terahertz absorption. The maximum absorption rate increases from 18% to 100% when the Fermi energy is increased from 0.1 to 1 eV. At 1 eV, the absorption rate exceeds 90% in the range of 0.57–1.03 THz. The incident angle is also tested. When the angle is in the range of 60°, excellent adsorption performance is maintained. |
| first_indexed | 2024-12-10T05:55:49Z |
| format | Article |
| id | doaj.art-c371e496a8b441bd939819921804723b |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-12-10T05:55:49Z |
| publishDate | 2022-08-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-c371e496a8b441bd939819921804723b2022-12-22T01:59:55ZengAIP Publishing LLCAIP Advances2158-32262022-08-01128085005085005-610.1063/5.0099346Perfect double-layer terahertz absorber based on graphene metamaterialHaoduo Jia0Xin Tang1Hui Li2Ziwen Qian3Ming Li4Dai Wu5Peng Li6Jianxin Wang7Xinghua Zhu8Dingyu Yang9College of Optoelectronic Engineering, Chengdu University of Information Technology, Chengdu 610225, ChinaCollege of Optoelectronic Engineering, Chengdu University of Information Technology, Chengdu 610225, ChinaCollege of Optoelectronic Engineering, Chengdu University of Information Technology, Chengdu 610225, ChinaSchool of Communication and Electronic Engineering, East China Normal University, Shanghai 200241, ChinaInstitute of Applied Electronics, China Academy of Engineering Physics, Mianyang 621000, ChinaInstitute of Applied Electronics, China Academy of Engineering Physics, Mianyang 621000, ChinaInstitute of Applied Electronics, China Academy of Engineering Physics, Mianyang 621000, ChinaInstitute of Applied Electronics, China Academy of Engineering Physics, Mianyang 621000, ChinaCollege of Intelligent Manufacturing, Sichuan University of Arts and Science, Dazhou 635000, ChinaCollege of Optoelectronic Engineering, Chengdu University of Information Technology, Chengdu 610225, ChinaUsing bilayer graphene structures (L-type and disk-type structures), we numerically demonstrate a tunable single-band terahertz metamaterial absorber with nearly perfect (100%) absorption by continuously adjusting the graphene Fermi energy parameters to determine the maximum absorption rate, the corresponding center frequency, and bandwidth. Graphene distinct dielectric–metal transition properties make it possible to achieve tunable terahertz absorption. The maximum absorption rate increases from 18% to 100% when the Fermi energy is increased from 0.1 to 1 eV. At 1 eV, the absorption rate exceeds 90% in the range of 0.57–1.03 THz. The incident angle is also tested. When the angle is in the range of 60°, excellent adsorption performance is maintained.http://dx.doi.org/10.1063/5.0099346 |
| spellingShingle | Haoduo Jia Xin Tang Hui Li Ziwen Qian Ming Li Dai Wu Peng Li Jianxin Wang Xinghua Zhu Dingyu Yang Perfect double-layer terahertz absorber based on graphene metamaterial AIP Advances |
| title | Perfect double-layer terahertz absorber based on graphene metamaterial |
| title_full | Perfect double-layer terahertz absorber based on graphene metamaterial |
| title_fullStr | Perfect double-layer terahertz absorber based on graphene metamaterial |
| title_full_unstemmed | Perfect double-layer terahertz absorber based on graphene metamaterial |
| title_short | Perfect double-layer terahertz absorber based on graphene metamaterial |
| title_sort | perfect double layer terahertz absorber based on graphene metamaterial |
| url | http://dx.doi.org/10.1063/5.0099346 |
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