Ultrasensitive terahertz metamaterial sensor based on spoof surface plasmon

CORC > 西安光学精密机械研究所 > 中国科学院西安光学精密机械研究所 > 瞬态光学技术国家重点实验室

	Ultrasensitive terahertz metamaterial sensor based on spoof surface plasmon
	Chen, Xu 1,2; Fan, Wenhui 1
刊名	scientific reports
	2017-05-18
卷号	7
ISSN号	2045-2322
通讯作者	fan, wh (reprint author), chinese acad sci, xian inst opt & precis mech, state key lab transient opt & photon, xian 710119, peoples r china.
产权排序	1
英文摘要	a planar terahertz metamaterial sensor consisting of a corrugated metal stripe perforated by three rectangular grooves is proposed and investigated numerically. due to the formation of fabry-perot resonance of the spoof surface plasmons mode on the corrugated metal stripe, the extremely sharp resonance in transmission spectrum associated with strong local field enhancement and high quality factor can be realized and exploited for ultrasensitive sensing. since the intense interaction between electromagnetic waves and analyte materials, the frequency sensitivity of 1.966 thz per refractive index unit and the figure of merit of 19.86 can be achieved. meanwhile, the film thickness sensitivity of this metamaterial sensor is higher than 52.5 ghz/mu m when the analyte thickness is thinner than 4 mu m. more interestingly, we find that the metal thickness has a great effect on the sensor performance. these findings open up opportunities for planar metamaterial structures to be developed into practical sensors in terahertz regime.
学科主题	multidisciplinary sciences
WOS标题词	science & technology
类目[WOS]	multidisciplinary sciences
研究领域[WOS]	science & technology - other topics
关键词[WOS]	time-domain spectroscopy ; fano resonances ; ultrathin ; antennas ; index
收录类别	SCI
语种	英语
WOS记录号	WOS:000401526200031
内容类型	期刊论文
源URL	[http://ir.opt.ac.cn/handle/181661/28980]
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
作者单位	1.Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Chen, Xu,Fan, Wenhui. Ultrasensitive terahertz metamaterial sensor based on spoof surface plasmon[J]. scientific reports,2017,7.
APA	Chen, Xu,&Fan, Wenhui.(2017).Ultrasensitive terahertz metamaterial sensor based on spoof surface plasmon.scientific reports,7.
MLA	Chen, Xu,et al."Ultrasensitive terahertz metamaterial sensor based on spoof surface plasmon".scientific reports 7(2017).