Terahertz plasmonic waveguide sensing based on metal rod array structures

Borwen You, Chien Chun Peng, Ja Yu Lu, Hungh Hsuan Chen, Jia Shing Jhang, Chin Ping Yu, Tze An Liu, Jin Long Peng, Chi Kuang Sun

研究成果: Conference contribution

摘要

Metallic rod array is successfully demonstrated to be integrated a parallel plate waveguide and used as a slab-waveguide for sensing applications. Both the waveguide properties are characterized from the transmission spectra using different polarization conditions of terahertz electromagnetic fields, which are parallel and perpendicular to the rod axis. When THz field polarization is parallel to the rod axis, there is high-pass filtering feature with structure-period-dependent threshold frequency, corresponding to the plasma frequency of the rod-array composite. For the polarization perpendicular to the rod axis, there is Bragg diffraction frequency as forbidden band with considerably low transmission power. The metal-rod-array integrated parallel-plate waveguide is connected with a microfluidic channel to sense liquids, and the minimum detectable quantity is about 13μmol/mm3. The metal-rod-array slab waveguide is able to sense thinfilm with nanometer level, and the detectable optical path difference is down to λ/2380. The sensor properties of multiple functions for sensing various analyte conformations, microfluidic integration and high sensitivity would be applied in biomedicine and biochemical applications.

原文English
主出版物標題Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications VII
發行者SPIE
ISBN(列印)9780819498984
DOIs
出版狀態Published - 2014 一月 1
事件Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications VII - San Francisco, CA, United States
持續時間: 2014 二月 42014 二月 6

出版系列

名字Proceedings of SPIE - The International Society for Optical Engineering
8985
ISSN(列印)0277-786X
ISSN(電子)1996-756X

Other

OtherTerahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications VII
國家/地區United States
城市San Francisco, CA
期間14-02-0414-02-06

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 凝聚態物理學
  • 電腦科學應用
  • 應用數學
  • 電氣與電子工程

指紋

深入研究「Terahertz plasmonic waveguide sensing based on metal rod array structures」主題。共同形成了獨特的指紋。

引用此