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Gongs Sen, Hu Min, Zhong Renbing, Chen Xiaoxing, Zhang Ping, Zhao Tao, and Liu Shenggang *
Cooperative Innovation Centre of THz Science, University of Electronic Science and Technology of China,Chengdu,610054, China
* Email: liusg@uestc.edu.cn
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Abstract: In this paper, we present the parallel electron beam excitation of the surface plasmon polaritons (SPPs) in the double layer graphene sheets. The results of the theoretical analysis and numerical calculations show that the excited SPPs in the double layer graphene sheets have many characteristics and advantages compared to that in single layer graphene sheet. For the double layer graphene sheets, SPPs are spilt into two modes due to the coupling of SPPs, and the mode with higher frequency can be excited by parallel electron beam efficiently. The excited SPPs have higher operating frequencies and stronger field amplitudes than that in single layer graphene sheet, and the operating frequency can also be tuned by electron beam energy and chemical potential.
Keywords: Electron beam, Double layer graphene sheets, Surface plasmon polaritons.
Received: 2015-11-30
Published: 2015-12-31
Cite this article:
Gongs Sen, Hu Min, Zhong Renbing, Chen Xiaoxing, Zhang Ping, Zhao Tao, and Liu Shenggang. Parallel electron beam excitation of surface plasmon polaritons in double layer graphene sheets[J]. International Journal of Terahertz Science and Technology, 2015, Vol.8, No.4: 170-178. DOI:10.11906/TST.170-178.2015.12.16
URL: http://www.tstnetwork.org/10.11906/TST.170-178.2015.12.16
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