期刊
JOURNAL OF APPLIED PHYSICS
卷 117, 期 13, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4916749
关键词
-
资金
- Fujian Provincial Excellent Young Scientist Fund [2014J07007]
- University of Strathclyde Chancellor's Fellowship scheme
- National Natural Science Foundation of China [51005077]
- Training Program of Fujian Excellent Talents in Universities
- Ministry of Education, P.R. China [20133514110008]
- Ministry of Health, P.R. China [WKJ-FJ-27]
- Specialised Research Fund for the Doctoral Program of Higher Education
We investigated the spoof surface plasmon polaritons (SSPPs) on 1D grooved metal surface for terahertz sensing of refractive index of the filling analyte through a prism-coupling attenuated total reflection setup. From the dispersion relation analysis and the finite element method-based simulation, we revealed that the dispersion curve of SSPP got suppressed as the filling refractive index increased, which cause the coupling resonance frequency redshifting in the reflection spectrum. The simulated results for testing various refractive indexes demonstrated that the incident angle of terahertz radiation has a great effect on the performance of sensing. Smaller incident angle will result in a higher sensitive sensing with a narrower detection range. In the meanwhile, the higher order mode SSPP-based sensing has a higher sensitivity with a narrower detection range. The maximum sensitivity is 2.57 THz/RIU for the second-order mode sensing at 45 degrees internal incident angle. The proposed SSPP-based method has great potential for high sensitive terahertz sensing. (C) 2015 AIP Publishing LLC.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据