Toroidal metasurfaces integrated with microfluidic for terahertz refractive index sensing | |
Chen, Xu1; Fan, Wenhui1,2,3 | |
作者部门 | 瞬态光学研究室 |
2019-11-27 | |
发表期刊 | JOURNAL OF PHYSICS D-APPLIED PHYSICS |
ISSN | 0022-3727;1361-6463 |
卷号 | 52期号:48 |
产权排序 | 1 |
摘要 | A terahertz refractive index sensor consisting of toroidal dipole resonance metasurface integrated with microfluidic channel is proposed. The excitation of toroidal dipole resonance in this metasurface and the localized electromagnetic field enhancement in microfluidic channel are investigated comprehensively. Numerical results show that the calculated quality factor and the corresponding figure of merit can reach 1103 and 244, much higher than previously reported terahertz metamaterials sensors. Moreover, the refractive index sensing capabilities of non-polar and polar liquids are also investigated, which demonstrate the resonant frequency shift does not depend on the losses of analytes and show this device can be used for sensing various materials, including highly absorptive materials. This proposed structure can be extended to work in other frequency regions and has potential applications in high performance gases, liquids and biological materials sensing. |
关键词 | terahertz metasurfaces toroidal dipole microfluidic refractive index sensing |
DOI | 10.1088/1361-6463/ab3ea0 |
收录类别 | SCI ; EI |
语种 | 英语 |
WOS记录号 | WOS:000485742400003 |
出版者 | IOP PUBLISHING LTD |
EI入藏号 | 20194207534627 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.opt.ac.cn/handle/181661/31865 |
专题 | 瞬态光学研究室 |
通讯作者 | Fan, Wenhui |
作者单位 | 1.Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Shaanxi, Peoples R China 2.Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China 3.Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Shanxi, Peoples R China |
推荐引用方式 GB/T 7714 | Chen, Xu,Fan, Wenhui. Toroidal metasurfaces integrated with microfluidic for terahertz refractive index sensing[J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS,2019,52(48). |
APA | Chen, Xu,&Fan, Wenhui.(2019).Toroidal metasurfaces integrated with microfluidic for terahertz refractive index sensing.JOURNAL OF PHYSICS D-APPLIED PHYSICS,52(48). |
MLA | Chen, Xu,et al."Toroidal metasurfaces integrated with microfluidic for terahertz refractive index sensing".JOURNAL OF PHYSICS D-APPLIED PHYSICS 52.48(2019). |
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Toroidal metasurface(3333KB) | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 请求全文 |
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