CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Spoof surface plasmons resonance effect and tunable electric response of improved metamaterial in the terahertz regime |
Wang Yue (王玥)a b, Zhang Li-Ying (张丽颖)b, Mei Jin-Shuo (梅金硕)a, Zhang Wen-Chao (张文超)a, Tong Yi-Jing (童一静)c |
a Department of Electrical Science and Technology, Harbin University of Science and Technology, Harbin 150080, China; b Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, Harbin University of Science and Technology, Harbin 150080, China; c School of Engineering and Applied Science, George Washington University, 2121 Eye Street, NW, Washington, DC 20052, USA |
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Abstract We propose an improved design and numerical study of an optimized tunable plasmonics artificial material resonator in the terahertz regime. We demonstrate that tunability can be realized with a transmission intensity as much as ~ 61% in the lower frequency resonance, which is implemented through the effect of photoconductive switching under photoexcitation. In the higher frequency resonance, we show that spoof surface plasmons along the interface of metal/dielectric provide new types of electromagnetic resonances. Our approach opens up possibilities for the interface of metamaterial and plasmonics to be applied to optically tunable THz switching.
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Received: 16 July 2015
Revised: 14 August 2015
Accepted manuscript online:
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PACS:
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73.20.Mf
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(Collective excitations (including excitons, polarons, plasmons and other charge-density excitations))
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78.67.Pt
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(Multilayers; superlattices; photonic structures; metamaterials)
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Fund: Project supported by the National Natural Science Foundation of China (Grant No. 61201075), the Natural Science Foundation of Heilongjiang Province, China (Grant No. F2015039), the Young Scholar Project of Heilongjiang Provincial Education Bureau, China (Grant No. 1254G021), the China Postdoctoral Science Foundation (Grant No. 2012M511507), and the Science Funds for the Young Innovative Talents of Harbin University of Science and Technology, China (Grant No. 201302). |
Corresponding Authors:
Wang Yue
E-mail: wangyue@hrbust.edu.cn
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Cite this article:
Wang Yue (王玥), Zhang Li-Ying (张丽颖), Mei Jin-Shuo (梅金硕), Zhang Wen-Chao (张文超), Tong Yi-Jing (童一静) Spoof surface plasmons resonance effect and tunable electric response of improved metamaterial in the terahertz regime 2015 Chin. Phys. B 24 127302
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