An efficient and compact difference-frequency-generation spectrometer and its application to 12CH3D/12CH4 isotope ratio measurements

Kiyoshi Tsuji, Hiroaki Teshima, Hiroyuki Sasada, Naohiro Yoshida

研究成果: Article査読

3 被引用数 (Scopus)

抄録

We have developed an efficient and compact 3.4 μm difference-frequency-generation spectrometer using a 1.55 μm distributed feedback (DFB) laser diode, a 1.06 μm DFB laser diode, and a ridge-waveguide periodically poled lithium niobate. It is continuously tunable in the 30 cm-1 span and is applied to 12CH3D12CH4 isotope ratio measurements. The suitable pair of 12CH3Dv4 pP(7,6) and 12CH4 ν2+ν4 R(6) F1(1) lines enabled us to determine their isotope ratio with a precision repeatability of 0.8‰ using a sample and a working standard of pure methane with an effective signal averaging time of 100 ms.

本文言語English
ページ(範囲)6612-6622
ページ数11
ジャーナルSensors
10
7
DOI
出版ステータスPublished - 2010 7月
外部発表はい

ASJC Scopus subject areas

  • 分析化学
  • 生化学
  • 原子分子物理学および光学
  • 器械工学
  • 電子工学および電気工学

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