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

doi:10.1364/OE.23.021786

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

物理学科

研究成果: Article › 査読

5 被引用数 (Scopus)

抄録

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.

本文言語	English
ページ（範囲）	21786-21797
ページ数	12
ジャーナル	Optics Express
巻	23
号	17
DOI	https://doi.org/10.1364/OE.23.021786
出版ステータス	Published - 2015 8月 24

ASJC Scopus subject areas

原子分子物理学および光学

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10.1364/OE.23.021786

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引用スタイル

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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.",

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AU - Sasada, Hiroyuki

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