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Electrically tunable robust edge states in graphene-based topological photonic crystal slabs
Song, Zidong1,3; Liu, HongJun1,2; Huang, Nan1; Wang, ZhaoLu1
Department瞬态光学技术国家重点实验室
2018-03-07
Source PublicationJOURNAL OF PHYSICS D-APPLIED PHYSICS
ISSN0022-3727
Volume51Issue:9
Contribution Rank1
Abstract

Topological photonic crystals are optical structures supporting topologically protected unidirectional edge states that exhibit robustness against defects. Here, we propose a graphene-based all-dielectric photonic crystal slab structure that supports two-dimensionally confined topological edge states. These topological edge states can be confined in the out-of-plane direction by two parallel graphene sheets. In the structure, the excitation frequency range of topological edge states can be dynamically and continuously tuned by varying bias voltage across the two parallel graphene sheets. Utilizing this kind of architecture, we construct Z-shaped channels to realize topological edge transmission with diffrerent frequencies. The proposal provides a new degree of freedom to dynamically control topological edge states and potential applications for robust integrated photonic devices and optical communication systems.

 

KeywordPhotonic Crystals Graphene Photonic Crystal Waveguides
DOI10.1088/1361-6463/aaa9fe
Indexed BySCI ; EI
Language英语
WOS IDWOS:000425118800001
EI Accession Number20180904835595
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.opt.ac.cn/handle/181661/30771
Collection瞬态光学技术国家重点实验室
Affiliation1.Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Shaanxi, Peoples R China;
2.Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Shanxi, Peoples R China;
3.Univ Chinese Acad Sci, Beijing 100084, Peoples R China
Recommended Citation
GB/T 7714
Song, Zidong,Liu, HongJun,Huang, Nan,et al. Electrically tunable robust edge states in graphene-based topological photonic crystal slabs[J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS,2018,51(9).
APA Song, Zidong,Liu, HongJun,Huang, Nan,&Wang, ZhaoLu.(2018).Electrically tunable robust edge states in graphene-based topological photonic crystal slabs.JOURNAL OF PHYSICS D-APPLIED PHYSICS,51(9).
MLA Song, Zidong,et al."Electrically tunable robust edge states in graphene-based topological photonic crystal slabs".JOURNAL OF PHYSICS D-APPLIED PHYSICS 51.9(2018).
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