Sensitivity improvement of midinfrared gas sensing system using single-wavelength quantum cascade laser and hollow-waveguide gas cell

Takashi Katagiri, Keisuke Yaegashi, Yuji Matsuura

研究成果: Article査読

1 被引用数 (Scopus)

抄録

The configuration of a gas analysis system using the combination of a single-wavelength quantum cascade laser and a hollow-optical-fiber gas cell was optimized to improve measurement sensitivity. On the basis of theoretical calculation, a 6-m looped fiber gas cell was introduced into the system to more sensitively measure the concentration of nitric monoxide (NO) gas. High-precision measurement is achieved by precisely scanning the wavelength of the laser around the sharp absorption peak of NO gas. Concentrations of NO gas as low as 100 ppb were successfully measured.

本文言語English
論文番号080503
ジャーナルOptical Engineering
56
8
DOI
出版ステータスPublished - 2017 8月 1

ASJC Scopus subject areas

  • 原子分子物理学および光学
  • 工学(全般)

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