Transition dipole-moment of the ν13 band of acetylene measured with dual-comb Fourier-transform spectroscopy

Sho Okubo, Kana Iwakuni, Koichi M.T. Yamada, Hajime Inaba, Atsushi Onae, Feng Lei Hong, Hiroyuki Sasada

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The ν13 vibration band of acetylene (C2H2) in the near infrared region was recorded with a dual-comb Fourier-transform spectrometer. We observed 56 transitions from P(26) to R(29) at six different column densities. The integral line intensity was determined for each recorded absorption line by fitting the line profile to Lambert-Beer's law with a Voigt function. Thanks to the outstanding capability of dual-comb spectroscopy to cover a broad spectrum in a relatively short time with high resolution and high frequency precision, we determined the reliable line strength for each ro-vibrational transition as well as the transition dipole moment for this band.

Original languageEnglish
Pages (from-to)10-16
Number of pages7
JournalJournal of Molecular Spectroscopy
Volume341
DOIs
Publication statusPublished - 2017 Nov 1

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Acetylene
Dipole moment
acetylene
Spectrometers
Fourier transforms
dipole moments
Spectroscopy
Infrared radiation
spectroscopy
Beer law
spectrometers
vibration
high resolution
profiles
aliflurane

Keywords

  • Acetylene
  • Dual-comb spectroscopy
  • Fourier-transform spectroscopy
  • Line strength
  • Near infrared
  • Transition dipole-moment

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Spectroscopy
  • Physical and Theoretical Chemistry

Cite this

Transition dipole-moment of the ν13 band of acetylene measured with dual-comb Fourier-transform spectroscopy. / Okubo, Sho; Iwakuni, Kana; Yamada, Koichi M.T.; Inaba, Hajime; Onae, Atsushi; Hong, Feng Lei; Sasada, Hiroyuki.

In: Journal of Molecular Spectroscopy, Vol. 341, 01.11.2017, p. 10-16.

Research output: Contribution to journalArticle

Okubo, Sho ; Iwakuni, Kana ; Yamada, Koichi M.T. ; Inaba, Hajime ; Onae, Atsushi ; Hong, Feng Lei ; Sasada, Hiroyuki. / Transition dipole-moment of the ν13 band of acetylene measured with dual-comb Fourier-transform spectroscopy. In: Journal of Molecular Spectroscopy. 2017 ; Vol. 341. pp. 10-16.
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AU - Hong, Feng Lei

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AB - The ν1+ν3 vibration band of acetylene (C2H2) in the near infrared region was recorded with a dual-comb Fourier-transform spectrometer. We observed 56 transitions from P(26) to R(29) at six different column densities. The integral line intensity was determined for each recorded absorption line by fitting the line profile to Lambert-Beer's law with a Voigt function. Thanks to the outstanding capability of dual-comb spectroscopy to cover a broad spectrum in a relatively short time with high resolution and high frequency precision, we determined the reliable line strength for each ro-vibrational transition as well as the transition dipole moment for this band.

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