Tunable electromagnetically induced transparency at terahertz frequencies in coupled graphene metamaterial

doi:10.1088/1674-1056/24/11/118103

中国物理B ›› 2015, Vol. 24 ›› Issue (11): 118103-118103.doi: 10.1088/1674-1056/24/11/118103

Tunable electromagnetically induced transparency at terahertz frequencies in coupled graphene metamaterial

丁国文^a, 刘少斌^a, 章海锋^{a b}, 孔祥鲲^{a c}, 李海明^a, 李炳祥^a, 刘思源^a, 李海^b

a Key Laboratory of Radar Imaging and Microwave Photonics of Ministry of Education, Nanjing University of Aeronauticsand Astronautics, Nanjing 210016, China;
b Nanjing Artillery Academy, Nanjing 211132, China;
c State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, China

收稿日期:2015-04-25 修回日期:2015-07-06 出版日期:2015-11-05 发布日期:2015-11-05
通讯作者: Liu Shao-Bin E-mail:plrg@nuaa.edu.cn
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 61307052), the Youth Funding for Science & Technology Innovation in Nanjing University of Aeronautics and Astronautics, China (Grant No. NS2014039), the Chinese Specialized Research Fund for the Doctoral Program of Higher Education (Grant No. 20123218110017), the Innovation Program for Graduate Education of Jiangsu Province, China (Grant Nos. KYLX_0272, CXZZ13_0166, and CXLX13_155), the Open Research Program in National State Key Laboratory of Millimeter Waves of China (Grant No. K201609), and the Fundamental Research Funds for the Central Universities of China (Grant No. kfjj20150407).

Tunable electromagnetically induced transparency at terahertz frequencies in coupled graphene metamaterial

Ding Guo-Wen (丁国文)^a, Liu Shao-Bin (刘少斌)^a, Zhang Hai-Feng (章海锋)^{a b}, Kong Xiang-Kun (孔祥鲲)^{a c}, Li Hai-Ming (李海明)^a, Li Bing-Xiang (李炳祥)^a, Liu Si-Yuan (刘思源)^a, Li Hai (李海)^b

a Key Laboratory of Radar Imaging and Microwave Photonics of Ministry of Education, Nanjing University of Aeronauticsand Astronautics, Nanjing 210016, China;
b Nanjing Artillery Academy, Nanjing 211132, China;
c State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, China

Received:2015-04-25 Revised:2015-07-06 Online:2015-11-05 Published:2015-11-05
Contact: Liu Shao-Bin E-mail:plrg@nuaa.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 61307052), the Youth Funding for Science & Technology Innovation in Nanjing University of Aeronautics and Astronautics, China (Grant No. NS2014039), the Chinese Specialized Research Fund for the Doctoral Program of Higher Education (Grant No. 20123218110017), the Innovation Program for Graduate Education of Jiangsu Province, China (Grant Nos. KYLX_0272, CXZZ13_0166, and CXLX13_155), the Open Research Program in National State Key Laboratory of Millimeter Waves of China (Grant No. K201609), and the Fundamental Research Funds for the Central Universities of China (Grant No. kfjj20150407).

摘要/Abstract

摘要： A graphene-based metamaterial with tunable electromagnetically induced transparency (EIT)-like transmission is numerically studied in this paper. The proposed structure consists of a graphene layer composed of coupled cut-wire pairs printed on a substrate. The simulation confirms that an EIT-like transparency window can be observed due to indirect coupling in a terahertz frequency range. More importantly, the peak frequency of the transmission window can be dynamically controlled over a broad frequency range by varying the Fermi energy levels of the graphene layer through controlling the electrostatic gating. The proposed metamaterial structure offers an additional opportunity to design novel applications such as switches or modulators.

关键词: graphene, metamaterial, electromagnetically induced transparency

Abstract: A graphene-based metamaterial with tunable electromagnetically induced transparency (EIT)-like transmission is numerically studied in this paper. The proposed structure consists of a graphene layer composed of coupled cut-wire pairs printed on a substrate. The simulation confirms that an EIT-like transparency window can be observed due to indirect coupling in a terahertz frequency range. More importantly, the peak frequency of the transmission window can be dynamically controlled over a broad frequency range by varying the Fermi energy levels of the graphene layer through controlling the electrostatic gating. The proposed metamaterial structure offers an additional opportunity to design novel applications such as switches or modulators.

Key words: graphene, metamaterial, electromagnetically induced transparency

中图分类号: (Graphene)

81.05.ue

78.67.Pt (Multilayers; superlattices; photonic structures; metamaterials) 41.20.Jb (Electromagnetic wave propagation; radiowave propagation)

丁国文, 刘少斌, 章海锋, 孔祥鲲, 李海明, 李炳祥, 刘思源, 李海. Tunable electromagnetically induced transparency at terahertz frequencies in coupled graphene metamaterial[J]. 中国物理B, 2015, 24(11): 118103-118103.

Ding Guo-Wen (丁国文), Liu Shao-Bin (刘少斌), Zhang Hai-Feng (章海锋), Kong Xiang-Kun (孔祥鲲), Li Hai-Ming (李海明), Li Bing-Xiang (李炳祥), Liu Si-Yuan (刘思源), Li Hai (李海). Tunable electromagnetically induced transparency at terahertz frequencies in coupled graphene metamaterial[J]. Chin. Phys. B, 2015, 24(11): 118103-118103.

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Tunable electromagnetically induced transparency at terahertz frequencies in coupled graphene metamaterial

Tunable electromagnetically induced transparency at terahertz frequencies in coupled graphene metamaterial

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