Graphene-metamaterial hybridization for enhanced terahertz response

CORC > 物理研究所 > 物理所公开发表论文 > 期刊论文

	Graphene-metamaterial hybridization for enhanced terahertz response
	Li, JY ; Zhou, YX ; Quan, BG ; Pan, XC ; Xu, XL ; Ren, ZY ; Hu, FR ; Fan, HM ; Qi, M ; Bai, JT ; Wang, L ; Li, JJ ; Gu, CZ
刊名	CARBON
	2014
卷号	78 页码:102
ISSN号	0008-6223
通讯作者	Xu, XL (reprint author), Northwest Univ, State Key Lab Incubat Base Photoelect Technol & F, Int Cooperat Ctr Natl Photoelect Technol & Funct, Xian 710069, Peoples R China.
中文摘要	Improving the interaction of graphene with terahertz (THz) waves in experiment - through experimental measurement is a challenge for THz detectors, modulators, and other THz photonic components based on graphene. Hybridization of graphene with metamaterials leads to a strong THz response enhancement. Here, we observed maximum enhancement of 33.0% in non-resonant region and 23.8% in resonant region with the hybridization of graphene and metamaterials in experiment. A coupling model as well as numerical calculation has been carried out to fully investigate the influence of this coupling. The results suggest that there exists an exponential relationship between coupling strength and THz response in both resonant and non-resonant region, while the resonant frequency shift shows a linear growth with coupling strength. The bandwidth of the resonance shows exponential increasing with the damping constant. Correspondingly, the numerical calculation shows the similar dependency with the electrical conductivity of the graphene overlayer. This suggests a higher conductivity for stronger coupling. Substrates could also bring the remote phonon scattering, charge transfer, and dielectric effect, which show the influence such as low dielectric constant for high coupling. (C) 2014 Elsevier Ltd. All rights reserved.
资助信息	National Natural Science Foundation of China [61275105, 11374240, 61177059, 61390503, 51272278, 51103175]; Ph.D. Programs Foundation of Ministry of Education of China [20136101110007]; Natural Science Basic Research Plan in Shaanxi Province of China [2012KJXX-27]; Key Laboratory Science Research Plan of Shaanxi Education Department [13JS101]; National Basic Research Program of China [2014CB339800, 201410780]; Knowledge Innovation Project of CAS [KJCX2-EW-W02]
语种	英语
公开日期	2015-04-14
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/58942]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Li, JY,Zhou, YX,Quan, BG,et al. Graphene-metamaterial hybridization for enhanced terahertz response[J]. CARBON,2014,78:102.
APA	Li, JY.,Zhou, YX.,Quan, BG.,Pan, XC.,Xu, XL.,...&Gu, CZ.(2014).Graphene-metamaterial hybridization for enhanced terahertz response.CARBON,78,102.
MLA	Li, JY,et al."Graphene-metamaterial hybridization for enhanced terahertz response".CARBON 78(2014):102.