Stark effects in the ν3 band of methane

Shoko Okuda, Hiroyuki Sasada

研究成果: Article査読

2 被引用数 (Scopus)

抄録

Sub-Doppler resolution Stark-modulation spectra of 20 transitions in the ν3 band of methane have been recorded using a difference-frequency-generation source referenced to an optical frequency comb with a frequency uncertainty of a few kilohertz. First-order Stark shifts in the vibrational excited (v3 1) and ground states have been measured separately in the presence of an electric field up to 31 kV/cm. The observed spectra have been analyzed, taking into account the mixing of the vibration–rotation wave functions due to high-order vibration–rotation interactions. The permanent electric dipole moment constants induced by the vibration, rotation, and Coriolis-type terms in the v3 1 state, and those induced by rotation in the vibrational ground state, are determined as Pvib −16.827 mDebye, Prot′ = 18.6(4) μDebye, PCor = 10.4(17) μDebye, and Prot″ = 24.47(12) μDebye.

本文言語English
ページ(範囲)2558-2568
ページ数11
ジャーナルJournal of the Optical Society of America B: Optical Physics
34
12
DOI
出版ステータスPublished - 2017 12月 1

ASJC Scopus subject areas

  • 統計物理学および非線形物理学
  • 原子分子物理学および光学

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