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Tunable Terahertz Perfect-Absorbers with Dual Peak Based on Reverse Graphene Patch Metamaterials
Y. Chen; X. Pan; Z. Bao; Y. Wang; Z.-D. Hu and J. Wang
2021
Source PublicationIEEE Photonics Journal
ISSN19430655
Volume13Issue:3
AbstractIn this paper, we proposed a tunable graphene-based metamaterial absorber (MA) at dual terahertz band to achieve perfect absorption. The electric field intensity distributions of demonstrated structure is illustrated to explain the origin of two absorption peaks. Simulation result shows the proposed MA owning polarization-insensitive property and wide incident angle tolerance. An inversion algorithm is used to extract the equivalent impedance and explore the physical mechanism of multiple-peak absorption. The equivalent impedance is explored through algorithm when the Fermi energy level alters, consequently the variation of resonant frequency of corresponding absorption peak is determined. Simultaneously, the resonant frequencies of absorption peaks can be adjusted by changing the geometric parameters of the graphene. Furthermore, we adapt the proposed structure into reversely designed pattern, achieving similar characteristic of dual-band absorption peaks and tunability. Thus, our work provides new insight and useful design guidance to various tunable multiple band terahertz metamaterial perfect-absorbers. 2009-2012 IEEE.
DOI10.1109/JPHOT.2021.3075466
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Indexed ByEI
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Document Type期刊论文
Identifierhttp://ir.ciomp.ac.cn/handle/181722/65717
Collection中国科学院长春光学精密机械与物理研究所
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GB/T 7714
Y. Chen,X. Pan,Z. Bao,et al. Tunable Terahertz Perfect-Absorbers with Dual Peak Based on Reverse Graphene Patch Metamaterials[J]. IEEE Photonics Journal,2021,13(3).
APA Y. Chen,X. Pan,Z. Bao,Y. Wang,&Z.-D. Hu and J. Wang.(2021).Tunable Terahertz Perfect-Absorbers with Dual Peak Based on Reverse Graphene Patch Metamaterials.IEEE Photonics Journal,13(3).
MLA Y. Chen,et al."Tunable Terahertz Perfect-Absorbers with Dual Peak Based on Reverse Graphene Patch Metamaterials".IEEE Photonics Journal 13.3(2021).
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