In situ detection for chemical products based on a flexible terahertz pipe

Borwen You, Ja-Yu Lu, Toshiaki Hattori

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

Abstract

In situ and remote detection of chemical product is experimentally demonstrated using a continuous-terahertz (THz) wave sensing/imaging system with a Teflon pipe as a scanning arm. Based on THz-refractive-index-sensitive reflection and fast response of electronic THz detector, the reflective THz sensing system can be used to real-time trace and quantitatively analyze the ammonium-chloride aerosols produced by the chemical reaction between hydrochloric acid and ammonia vapors. With a tightly focusing terahertz beam spot, the spatial and concentration distributions of the generated chemical product are successfully mapped out by the 1D scan of the flexible pipe probe. The detection limit for the ammonium-chloride aerosol is estimated to be approximately 165 nmol/mm2. The reliable and compact THz pipe scan system is potentially suitable for practical applications, such as biomedical or industrial fiber endoscopy.

Original languageEnglish
Title of host publication2017 42nd International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2017
PublisherIEEE Computer Society
ISBN (Electronic)9781509060481
DOIs
Publication statusPublished - 2017 Oct 12
Event42nd International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2017 - Cancun, Quintana Roo, Mexico
Duration: 2017 Aug 272017 Sep 1

Other

Other42nd International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2017
CountryMexico
CityCancun, Quintana Roo
Period17-08-2717-09-01

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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  • Cite this

    You, B., Lu, J-Y., & Hattori, T. (2017). In situ detection for chemical products based on a flexible terahertz pipe. In 2017 42nd International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2017 [8067161] IEEE Computer Society. https://doi.org/10.1109/IRMMW-THz.2017.8067161