Dual wavelength 3.2-μm source for isotope ratio measurements of 13CH4/12CH4

Masashi Abe, Satomi Kusanagi, Yoshiki Nishida, Osamu Tadanaga, Hirokazu Takenouchi, Hiroyuki Sasada

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Difference frequency generation using one 1.58-μm and two 1.06-μm distributed feedback Bragg-grating laser diodes and a ridgetype PPLN alternately provide two 3.2-μm coaxial waves resonant with individual isotopic transitions separated by 13 cm-1. The ν3 band R(6) A2 allowed transition of 13CH4 and the ν3 band R(6) A2 weakly allowed transition of 12CH4 are an ideal pair for isotope ratio measurements. The 13CH4/12CH4 isotope ratio is determined for three sample gases with a relative uncertainty of 0.7 ‰, and it is confirmed that the temperature dependence is smaller than the uncertainty.

Original languageEnglish
Pages (from-to)21786-21797
Number of pages12
JournalOptics Express
Volume23
Issue number17
DOIs
Publication statusPublished - 2015 Aug 24

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isotope ratios
wavelengths
Bragg gratings
semiconductor lasers
temperature dependence
gases

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Abe, M., Kusanagi, S., Nishida, Y., Tadanaga, O., Takenouchi, H., & Sasada, H. (2015). Dual wavelength 3.2-μm source for isotope ratio measurements of 13CH4/12CH4 Optics Express, 23(17), 21786-21797. https://doi.org/10.1364/OE.23.021786

Dual wavelength 3.2-μm source for isotope ratio measurements of 13CH4/12CH4 . / Abe, Masashi; Kusanagi, Satomi; Nishida, Yoshiki; Tadanaga, Osamu; Takenouchi, Hirokazu; Sasada, Hiroyuki.

In: Optics Express, Vol. 23, No. 17, 24.08.2015, p. 21786-21797.

Research output: Contribution to journalArticle

Abe, M, Kusanagi, S, Nishida, Y, Tadanaga, O, Takenouchi, H & Sasada, H 2015, 'Dual wavelength 3.2-μm source for isotope ratio measurements of 13CH4/12CH4 ', Optics Express, vol. 23, no. 17, pp. 21786-21797. https://doi.org/10.1364/OE.23.021786
Abe M, Kusanagi S, Nishida Y, Tadanaga O, Takenouchi H, Sasada H. Dual wavelength 3.2-μm source for isotope ratio measurements of 13CH4/12CH4 Optics Express. 2015 Aug 24;23(17):21786-21797. https://doi.org/10.1364/OE.23.021786
Abe, Masashi ; Kusanagi, Satomi ; Nishida, Yoshiki ; Tadanaga, Osamu ; Takenouchi, Hirokazu ; Sasada, Hiroyuki. / Dual wavelength 3.2-μm source for isotope ratio measurements of 13CH4/12CH4 In: Optics Express. 2015 ; Vol. 23, No. 17. pp. 21786-21797.
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