Negative Group Velocity Plasmons Propagating in Waveguides Composed of Graphene Metamaterials
Fast light which demonstrates negative group velocity, is achieved by the anomalous dispersion or photon tunneling. However, many applications based on the fast light are limited due to the disadvantages of inferior tunability or nonlinear dispersion relationship of the fast light-carrying medium. I...
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| Format: | Article |
| Language: | English |
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IEEE
2020-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/9157839/ |
| _version_ | 1818663210531684352 |
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| author | Liqiang Zhuo Shaojian Su Zeyang Zhao Hengjie Zhou Zhen He Huanxi Ma Zhili Lin Weibin Qiu |
| author_facet | Liqiang Zhuo Shaojian Su Zeyang Zhao Hengjie Zhou Zhen He Huanxi Ma Zhili Lin Weibin Qiu |
| author_sort | Liqiang Zhuo |
| collection | DOAJ |
| description | Fast light which demonstrates negative group velocity, is achieved by the anomalous dispersion or photon tunneling. However, many applications based on the fast light are limited due to the disadvantages of inferior tunability or nonlinear dispersion relationship of the fast light-carrying medium. In this paper, we propose the graphene plasmonic crystal waveguides whose guiding and claddings are composed of the graphene plasmonic metamaterials, where the backward propagating plasmonic modes corresponding to negative group velocity are observed. The dispersion relation and the group velocity of three types of graphene plasmonic crystal waveguides are investigated by varying the materials and the geometrical parameters of the graphene plasmonic crystal waveguides. Numerical experiments are designed to verify the authenticity of a fast plasmon in the graphene plasmonic crystal waveguides. Our proposed graphene plasmonic crystal waveguides might find significant applications in the fields of nanophotonics, on-chip electromagnetic field manipulation in deep nanoscale, and the technique of high density plasmonic integrated plasmonic circuit in the future. |
| first_indexed | 2024-12-17T05:13:14Z |
| format | Article |
| id | doaj.art-246f351997d040a99a87287da4847029 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-17T05:13:14Z |
| publishDate | 2020-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-246f351997d040a99a87287da48470292022-12-21T22:02:11ZengIEEEIEEE Access2169-35362020-01-01814225014225810.1109/ACCESS.2020.30140859157839Negative Group Velocity Plasmons Propagating in Waveguides Composed of Graphene MetamaterialsLiqiang Zhuo0Shaojian Su1https://orcid.org/0000-0003-1375-5309Zeyang Zhao2Hengjie Zhou3Zhen He4Huanxi Ma5Zhili Lin6Weibin Qiu7https://orcid.org/0000-0001-6234-0711College of Information Science and Engineering, Huaqiao University, Xiamen, ChinaCollege of Information Science and Engineering, Huaqiao University, Xiamen, ChinaCollege of Information Science and Engineering, Huaqiao University, Xiamen, ChinaCollege of Information Science and Engineering, Huaqiao University, Xiamen, ChinaCollege of Information Science and Engineering, Huaqiao University, Xiamen, ChinaCollege of Information Science and Engineering, Huaqiao University, Xiamen, ChinaCollege of Information Science and Engineering, Huaqiao University, Xiamen, ChinaCollege of Information Science and Engineering, Huaqiao University, Xiamen, ChinaFast light which demonstrates negative group velocity, is achieved by the anomalous dispersion or photon tunneling. However, many applications based on the fast light are limited due to the disadvantages of inferior tunability or nonlinear dispersion relationship of the fast light-carrying medium. In this paper, we propose the graphene plasmonic crystal waveguides whose guiding and claddings are composed of the graphene plasmonic metamaterials, where the backward propagating plasmonic modes corresponding to negative group velocity are observed. The dispersion relation and the group velocity of three types of graphene plasmonic crystal waveguides are investigated by varying the materials and the geometrical parameters of the graphene plasmonic crystal waveguides. Numerical experiments are designed to verify the authenticity of a fast plasmon in the graphene plasmonic crystal waveguides. Our proposed graphene plasmonic crystal waveguides might find significant applications in the fields of nanophotonics, on-chip electromagnetic field manipulation in deep nanoscale, and the technique of high density plasmonic integrated plasmonic circuit in the future.https://ieeexplore.ieee.org/document/9157839/Plasmonic waveguidesmetamaterialsnegative group velocityanomalous dispersiongraphene plasmonic crystals |
| spellingShingle | Liqiang Zhuo Shaojian Su Zeyang Zhao Hengjie Zhou Zhen He Huanxi Ma Zhili Lin Weibin Qiu Negative Group Velocity Plasmons Propagating in Waveguides Composed of Graphene Metamaterials IEEE Access Plasmonic waveguides metamaterials negative group velocity anomalous dispersion graphene plasmonic crystals |
| title | Negative Group Velocity Plasmons Propagating in Waveguides Composed of Graphene Metamaterials |
| title_full | Negative Group Velocity Plasmons Propagating in Waveguides Composed of Graphene Metamaterials |
| title_fullStr | Negative Group Velocity Plasmons Propagating in Waveguides Composed of Graphene Metamaterials |
| title_full_unstemmed | Negative Group Velocity Plasmons Propagating in Waveguides Composed of Graphene Metamaterials |
| title_short | Negative Group Velocity Plasmons Propagating in Waveguides Composed of Graphene Metamaterials |
| title_sort | negative group velocity plasmons propagating in waveguides composed of graphene metamaterials |
| topic | Plasmonic waveguides metamaterials negative group velocity anomalous dispersion graphene plasmonic crystals |
| url | https://ieeexplore.ieee.org/document/9157839/ |
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