Terahertz antiresonant reflecting hollow-core waveguides for sensing applications

Borwen You, Ja Yu Lu, Chi Yu Chan, Chin Ping Yu, Hao Zai Chen, Tze An Liu, Jin Long Peng

Research output: Chapter in Book/Report/Conference proceedingConference contribution


A dielectric hollow-core tube utilized as a terahertz anti-resonant reflecting hollow-core waveguide (THz-ARRHW) sensor has been demonstrated to detect the minute variation of both refractive index and thickness in macromolecule layers, deposited on the tube wall, and to identify liquid vapors from the various core indices. The minimal quantity of macromolecule layers loaded on the tube wall of a polypropylene tube can be detected at 1.2picomole/mm2 and 0.2%, corresponding to the variation of 2.9μm-thickness and 0.001-refractive-index. And the sensing performance of a THz- ARRHW to detect core index variation for identifying volatile liquids is also realized at 0.0001g/cm3- vapor density.

Original languageEnglish
Title of host publicationTerahertz Technology and Applications IV
Publication statusPublished - 2011 Jun 9
EventTerahertz Technology and Applications IV - San Francisco, CA, United States
Duration: 2011 Jan 262011 Jan 27

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


OtherTerahertz Technology and Applications IV
Country/TerritoryUnited States
CitySan Francisco, CA

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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