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

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)6612-6622
Number of pages11
JournalSensors
Volume10
Issue number7
DOIs
Publication statusPublished - 2010 Jul

Fingerprint

Semiconductor Lasers
Distributed feedback lasers
isotope ratios
distributed feedback lasers
Isotopes
Semiconductor lasers
Spectrometers
semiconductor lasers
spectrometers
Ridge waveguides
Methane
lithium niobates
ridges
Lithium
methane
waveguides
lithium niobate

Keywords

  • Difference frequency generation
  • Isotope ratio
  • Laser spectroscopy
  • Methane
  • Waveguide PPLN

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics
  • Analytical Chemistry
  • Biochemistry

Cite this

An efficient and compact difference-frequency-generation spectrometer and its application to 12CH3D/12CH4 isotope ratio measurements. / Tsuji, Kiyoshi; Teshima, Hiroaki; Sasada, Hiroyuki; Yoshida, Naohiro.

In: Sensors, Vol. 10, No. 7, 07.2010, p. 6612-6622.

Research output: Contribution to journalArticle

Tsuji, Kiyoshi ; Teshima, Hiroaki ; Sasada, Hiroyuki ; Yoshida, Naohiro. / An efficient and compact difference-frequency-generation spectrometer and its application to 12CH3D/12CH4 isotope ratio measurements. In: Sensors. 2010 ; Vol. 10, No. 7. pp. 6612-6622.
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