Please use this identifier to cite or link to this item:
https://hdl.handle.net/10356/104760
Title: | Critical coupling with graphene-based hyperbolic metamaterials | Authors: | Xiang, Yuanjiang Dai, Xiaoyu Guo, Jun Zhang, Han Wen, Shuangchun Tang, Dingyuan |
Keywords: | DRNTU::Engineering::Electrical and electronic engineering | Issue Date: | 2014 | Source: | Xiang, Y., Dai, X., Guo, J., Zhang, H., Wen, S., & Tang, D. (2014). Critical coupling with graphene-based hyperbolic metamaterials. Scientific Reports, 4. | Series/Report no.: | Scientific reports | Abstract: | In order to effectively realize and control the critical coupling, a graphene-based hyperbolic metamaterial has been proposed to replace the absorbing thin film in the critically coupled resonance structure. Our calculations demonstrate that the critical coupling effect (near-perfect light absorption) can be achieved at the near-infrared wavelength by using this layered structure, while the critical coupling frequency can be tuned by varying the Fermi energy level of graphene sheets via electrostatic biasing. Moreover, we show that the critical coupling frequency can be tuned by changing the thickness of the dielectric or layer number of the graphene sheets in the unit cell of the graphene-dielectric HMM. The optimization performance has also been indicated, which may offer an opportunity towards the experimental designs of high efficient graphene based critical coupling devices. | URI: | https://hdl.handle.net/10356/104760 http://hdl.handle.net/10220/20320 |
ISSN: | 2045-2322 | DOI: | 10.1038/srep05483 | Schools: | School of Electrical and Electronic Engineering | Rights: | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/4.0/ | Fulltext Permission: | open | Fulltext Availability: | With Fulltext |
Appears in Collections: | EEE Journal Articles |
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srep05483[1].pdf | 1.47 MB | Adobe PDF | View/Open |
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