| ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
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Double transmission peaks electromagnetically induced transparency induced by simultaneously exciting the electric and magnetic resonance in one unit cell |
| Liu Si-Yuan (刘思源)a, Zheng Bu-Sheng (郑步生)a, Li Hai-Ming (李海明)a, Liu Xiao-Chun (刘晓春)b, Liu Shao-Bin (刘少斌)a |
a Key Laboratory of Radar Imaging and Microwave Photonics, Ministry of Education, College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
b The Aeronautical Science Key Laboratory for High Performance Electromagnetic Windows, Jinan 250023, China |
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Abstract In this paper, we investigate a metamaterial formed by a planar array of a metallic L-shaped structure and a cut wire (CW), which behaves as an analogue of the electromagnetically induced transparency (EIT). The double transmission peaks are formed by the destructive interference of two bright-modes and a quasi-dark mode. The two bright-modes are respectively excited by the L-shaped structure and CW. The unit structure itself performs a quasi-dark mode. The group refractive indexes are over 20 in the first transmission peak, and 117 in the second transmission peak, thus offering potential applications in slow light devices. Finally, all the above characteristics are achieved in just one simple unit cell.
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Received: 02 January 2015
Revised: 26 January 2015
Accepted manuscript online:
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PACS:
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42.50.Dv
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(Quantum state engineering and measurements)
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03.67.Mn
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(Entanglement measures, witnesses, and other characterizations)
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| Fund: Project supported by the Chinese Specialized Research Fund for the Doctoral Program of Higher Education, China (Grant No. 20123218110017), the National Natural Science Foundation of China (Grant Nos. 61307052 and 61471368), the Foundation of Aeronautical Science, China (Grant No. 20121852030), and the Fundamental Research Funds for the Central Universities (Grant No. kfjj20150407). |
Corresponding Authors:
Liu Shao-Bin
E-mail: lsb@nuaa.edu.cn
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Cite this article:
Liu Si-Yuan (刘思源), Zheng Bu-Sheng (郑步生), Li Hai-Ming (李海明), Liu Xiao-Chun (刘晓春), Liu Shao-Bin (刘少斌) Double transmission peaks electromagnetically induced transparency induced by simultaneously exciting the electric and magnetic resonance in one unit cell 2015 Chin. Phys. B 24 084204
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