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Author:

Xu, Kai-Da (Xu, Kai-Da.) | Xia, Shengpei (Xia, Shengpei.) | Cai, Yijun (Cai, Yijun.) | Li, Jianxing (Li, Jianxing.) | Cui, Jianlei (Cui, Jianlei.) | Chen, Chengying (Chen, Chengying.) | Zhou, Jianmei (Zhou, Jianmei.)

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SCIE EI Scopus Web of Science

Abstract:

A graphene-based tunable electromagnetically induced transparency (EIT)-like metamaterial structure operating at the terahertz regime is proposed and numerically analyzed. The unit cell of the metamaterial structure consists of a split-ring resonator and twofolded-line pair resonators, performing as the quasi-dark mode and bright mode, respectively. When the incident waves vertically illuminate upon the metamaterial structure, a transmission peak can be observed. Moreover, the frequency of the transparency window can be flexibly adjusted by changing the Fermi energy level of graphene. A classical coupled two-oscillator model is employed to theoretically analyze the physical mechanism of EIT-like phenomenon, which is due to the near-field coupling effect between the bright and the quasi-dark modes. The proposed work will be a good candidate for the design of different graphene-based tunable EIT devices at different frequency spectra with potential applications in optical sensors.

Keyword:

electromagnetically induced transparency graphene metamaterials terahertz

Author Community:

  • [ 1 ] [Xu, Kai-Da]Xi An Jiao Tong Univ, Sch Informat & Commun Engn, Xian, Peoples R China
  • [ 2 ] [Xia, Shengpei]Xi An Jiao Tong Univ, Sch Informat & Commun Engn, Xian, Peoples R China
  • [ 3 ] [Li, Jianxing]Xi An Jiao Tong Univ, Sch Informat & Commun Engn, Xian, Peoples R China
  • [ 4 ] [Zhou, Jianmei]Xi An Jiao Tong Univ, Sch Informat & Commun Engn, Xian, Peoples R China
  • [ 5 ] [Xu, Kai-Da]Xi An Jiao Tong Univ, State Key Lab Mfg Syst Engn, Xian, Peoples R China
  • [ 6 ] [Cui, Jianlei]Xi An Jiao Tong Univ, State Key Lab Mfg Syst Engn, Xian, Peoples R China
  • [ 7 ] [Cai, Yijun]Xiamen Univ Technol, Smart Sensing Integrated Circuit Engn Res Ctr Uni, Xiamen 361024, Peoples R China
  • [ 8 ] [Chen, Chengying]Xiamen Univ Technol, Smart Sensing Integrated Circuit Engn Res Ctr Uni, Xiamen 361024, Peoples R China
  • [ 9 ] [Chen, Chengying]Chinese Acad Sci, Key Lab Microelect Dev & Integrated Technol, Inst Microelect, Beijing, Peoples R China

Reprint Author's Address:

  • [Cai, Y.]Smart Sensing Integrated Circuit Engineering Research Center of Universities in Fujian Province, China;;

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Source :

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS

ISSN: 0895-2477

Year: 2022

Issue: 11

Volume: 64

Page: 1917-1922

1 . 3 9 2

JCR@2020

ESI Discipline: ENGINEERING;

ESI HC Threshold:7

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count: 1

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 3

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