Ultrahigh-Q terahertz sensor based on simple all-dielectric metasurface with toroidal dipole resonance | |
Jiang, Xiao-Qiang2,3; Fan, Wen-Hui1,2,3; Chen, Xu3; Yan, Hui2,3 | |
刊名 | APPLIED PHYSICS EXPRESS |
2021-10-01 | |
卷号 | 14期号:10 |
关键词 | terahertz metasurface toroidal dipole sensing |
ISSN号 | 1882-0778;1882-0786 |
DOI | 10.35848/1882-0786/ac27b7 |
产权排序 | 1 |
英文摘要 | A simple all-dielectric metasurface with symmetric structure, exhibiting strong toroidal dipole (TD) resonance and ultrahigh quality factor (Q-factor), is proposed. The physical mechanisms of the TD resonance are investigated by calculating the electromagnetic field and the scattering power of multipoles. Simulated results demonstrate that the Q-factor is up to 3.71 x 10(4) and the corresponding figure of merit is 636.7. Moreover, the TD resonance can be excited under both x- and y-polarized incident terahertz waves due to the symmetric structure. The remarkable performances make the proposed metasurface has feasible capability for biological and chemical sensing in terahertz range. |
语种 | 英语 |
出版者 | IOP PUBLISHING LTD |
WOS记录号 | WOS:000700765000001 |
内容类型 | 期刊论文 |
源URL | [http://ir.opt.ac.cn/handle/181661/95084] |
专题 | 西安光学精密机械研究所_瞬态光学技术国家重点实验室 |
通讯作者 | Fan, Wen-Hui |
作者单位 | 1.Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China |
推荐引用方式 GB/T 7714 | Jiang, Xiao-Qiang,Fan, Wen-Hui,Chen, Xu,et al. Ultrahigh-Q terahertz sensor based on simple all-dielectric metasurface with toroidal dipole resonance[J]. APPLIED PHYSICS EXPRESS,2021,14(10). |
APA | Jiang, Xiao-Qiang,Fan, Wen-Hui,Chen, Xu,&Yan, Hui.(2021).Ultrahigh-Q terahertz sensor based on simple all-dielectric metasurface with toroidal dipole resonance.APPLIED PHYSICS EXPRESS,14(10). |
MLA | Jiang, Xiao-Qiang,et al."Ultrahigh-Q terahertz sensor based on simple all-dielectric metasurface with toroidal dipole resonance".APPLIED PHYSICS EXPRESS 14.10(2021). |
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