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Graphene based polarization independent Fano resonance at terahertz for tunable sensing at nanoscale
Wang, Kai1,2; Fan, Wen-Hui1; Chen, Xu1; Song, Chao1,2; Jiang, Xiao-Qiang1,2
Department瞬态光学技术国家重点实验室
2019-05-15
Source PublicationOptics Communications
ISSN00304018
Volume439Pages:61-65
Contribution Rank1
Abstract

A two-dimensional metamaterial structure consisting of polyimide layer covered by a square disk of monolayer graphene and the gold symmetrical split resonance ring is proposed and investigated. Our simulations indicate that the Fano resonance mode in the terahertz range can be generated by this metamaterial structure, and also utilized for nanoscale sensing. The maximum frequency shift is 1671.61 GHz, and the frequency sensitivity is 1.18 THz/RIU for 2-nm-thick analyte. Furthermore, by adjusting the Fermi level of graphene, the resonance frequency can be tuned actively. Different from the Fano resonance excited by asymmetric structure, the proposed structure is polarization-insensitive and can perform well with both TE and TM waves ? 2019 Elsevier B.V.

KeywordMetamaterial Graphene Fano resonance Tunable sensing Nanoscale
DOI10.1016/j.optcom.2019.01.044
Indexed BySCI ; EI
Language英语
WOS IDWOS:000460161400010
PublisherElsevier B.V.
EI Accession Number20190506452980
Citation statistics
Document Type期刊论文
Identifierhttp://ir.opt.ac.cn/handle/181661/31244
Collection瞬态光学技术国家重点实验室
Corresponding AuthorFan, Wen-Hui
Affiliation1.State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China;
2.University of Chinese Academy of Sciences, Beijing; 100049, China
Recommended Citation
GB/T 7714
Wang, Kai,Fan, Wen-Hui,Chen, Xu,et al. Graphene based polarization independent Fano resonance at terahertz for tunable sensing at nanoscale[J]. Optics Communications,2019,439:61-65.
APA Wang, Kai,Fan, Wen-Hui,Chen, Xu,Song, Chao,&Jiang, Xiao-Qiang.(2019).Graphene based polarization independent Fano resonance at terahertz for tunable sensing at nanoscale.Optics Communications,439,61-65.
MLA Wang, Kai,et al."Graphene based polarization independent Fano resonance at terahertz for tunable sensing at nanoscale".Optics Communications 439(2019):61-65.
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