Mid-infrared trace gas analysis with single-pass fourier transform infrared hollow waveguide gas sensors

Seong Soo Kim, Nicola Menegazzo, Christina Young, James W Chan, Chance Carter, Boris Mizaikoff

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

A hollow core optical fiber gas sensor has been developed in combination with a Fourier transform infrared (FT-IR) spectrometer operating in the spectral range of 4000-500 cm -1, enabling continuous detection of small volume gas-phase analytes such as CH 4, CO 2, C 2H 5CI, or their mixtures at trace levels. Ag/Ag-halide hollow core optical fibers simultaneously serve as an optical waveguide for broad-band mid-infrared radiation and as a miniaturized absorption gas cell. Specifically, carbon dioxide, methane, and ethyl chloride as well as binary mixtures in a carrier gas were analyzed during exponential dilution experiments. In the studies reported here, the integration of an optical gas sensor with FT-IR spectroscopy provides excellent detection limits for small gas volumes (∼1.5 mL) of individual analytes at a few tens of parts per billion (ppb, vol/vol) for carbon dioxide and a few hundreds of ppb (vol/vol) for methane. Furthermore, the broad-band nature of the radiation source and of the hollow core optical waveguide provides the capability of multi-constituent analysis in mixtures.

Original languageEnglish (US)
Pages (from-to)331-337
Number of pages7
JournalApplied Spectroscopy
Volume63
Issue number3
DOIs
StatePublished - Mar 2009
Externally publishedYes

Fingerprint

Gas fuel analysis
gas analysis
Chemical sensors
hollow
Fourier transforms
Waveguides
Gases
Methane
Optical waveguides
Infrared radiation
waveguides
Carbon Dioxide
Optical fibers
sensors
Carbon dioxide
Ethyl Chloride
gases
Gas absorption
Infrared spectrometers
optical waveguides

Keywords

  • Carbon dioxide
  • Fourier transform infrared spectroscopy
  • FT-IR spectroscopy
  • Hollow waveguides
  • Methane
  • Mid-infrared sensors
  • Trace gas sensing

ASJC Scopus subject areas

  • Spectroscopy
  • Instrumentation

Cite this

Mid-infrared trace gas analysis with single-pass fourier transform infrared hollow waveguide gas sensors. / Kim, Seong Soo; Menegazzo, Nicola; Young, Christina; Chan, James W; Carter, Chance; Mizaikoff, Boris.

In: Applied Spectroscopy, Vol. 63, No. 3, 03.2009, p. 331-337.

Research output: Contribution to journalArticle

Kim, Seong Soo ; Menegazzo, Nicola ; Young, Christina ; Chan, James W ; Carter, Chance ; Mizaikoff, Boris. / Mid-infrared trace gas analysis with single-pass fourier transform infrared hollow waveguide gas sensors. In: Applied Spectroscopy. 2009 ; Vol. 63, No. 3. pp. 331-337.
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