Coupling of Graphene Plasmonics Modes Induced by Near-Field Perturbation at Terahertz Frequencies

doi:10.1007/s11468-015-0149-2

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	Coupling of Graphene Plasmonics Modes Induced by Near-Field Perturbation at Terahertz Frequencies
	Wei, Wei 1,2,3; Nong, Jinpeng 1,2; Tang, Linlong3 ; Zhu, Yong 1,2; Shi, Haofei3,4
刊名	PLASMONICS
	2016-08-01
卷号	11 期号:4 页码:1109-1118
关键词	Graphene Coupling Surface plasmons Near-field perturbation Terahertz frequencies
ISSN号	1557-1955
DOI	10.1007/s11468-015-0149-2
通讯作者	Wei, W (reprint author), Chongqing Univ, Minist Educ China, Key Lab Optoelect Technol & Syst, Chongqing 400044, Peoples R China. ; Wei, W (reprint author), Chongqing Univ, Coll Optoelect Engn, Chongqing 400044, Peoples R China. ; Wei, W (reprint author), Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 401122, Peoples R China.
英文摘要	The coupling between graphene surface plasmonic (GSP) modes and evanescent wave modes induced by near-field perturbation is investigated systematically in the grating-spacer-graphene hybrid system. Simulation results show that the near-field perturbation due to a small change of the geometrical structure disturbs the coupling characteristics, leading to the evolution of the absorption spectra and the spatial energy redistribution of GSP modes. By exploring the physical mechanism, the shift of the resonant absorption frequency can be quantified through the variation of the effective permittivity around graphene, while the first order evanescent wave in the grating plays a fundamental role in determining the absorbance in the coupling process. Further discussion indicates that the different penetration abilities of GSP wave into dielectric and metal grating contribute to the discrepancy of the energy distribution of GSP modes. Our study provides new physical insight and promotes a further step for the design of plasmonics devices at terahertz frequencies.
资助项目	National High Technology Research and Development Program of China[2015AA034801] ; National Natural Science Foundation of China[61405021] ; National Natural Science Foundation of China[11374359] ; Specialized Research Fund for the Doctoral Program of Higher Education[20120191120021] ; Natural Science Foundation of Chongqing, China[cstc2014jcyjA40045] ; Fundamental Research Funds for the Central Universities[CDJZR12120004] ; Fundamental Research Funds for the Central Universities[106112013CDJZR120006]
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000379179300021
内容类型	期刊论文
源URL	[http://119.78.100.138/handle/2HOD01W0/2654]
专题	微纳制造与系统集成研究中心
通讯作者	Wei, Wei
作者单位	1.Chongqing Univ, Minist Educ China, Key Lab Optoelect Technol & Syst, Chongqing 400044, Peoples R China 2.Chongqing Univ, Coll Optoelect Engn, Chongqing 400044, Peoples R China 3.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 401122, Peoples R China 4.Chongqing Engn Res Ctr Graphene Film Mfg, Chongqing 401329, Peoples R China
推荐引用方式 GB/T 7714	Wei, Wei,Nong, Jinpeng,Tang, Linlong,et al. Coupling of Graphene Plasmonics Modes Induced by Near-Field Perturbation at Terahertz Frequencies[J]. PLASMONICS,2016,11(4):1109-1118.
APA	Wei, Wei,Nong, Jinpeng,Tang, Linlong,Zhu, Yong,&Shi, Haofei.(2016).Coupling of Graphene Plasmonics Modes Induced by Near-Field Perturbation at Terahertz Frequencies.PLASMONICS,11(4),1109-1118.
MLA	Wei, Wei,et al."Coupling of Graphene Plasmonics Modes Induced by Near-Field Perturbation at Terahertz Frequencies".PLASMONICS 11.4(2016):1109-1118.