TY - JOUR
T1 - Stark effects in the ν3 band of methane
AU - Okuda, Shoko
AU - Sasada, Hiroyuki
N1 - Funding Information:
Exploratory Research for Advanced Technology (ERATO) through the ERATO MINOSHIMA Intelligent Optical Synthesizer Project (JPMJER1304); Photon Frontier Network Program of the Ministry of Education, Culture, Sports, Science and Technology (MEXT).
Funding Information:
Funding. Exploratory Research for Advanced Technology (ERATO) through the ERATO MINOSHIMA Intelligent Optical Synthesizer Project (JPMJER1304); Photon Frontier Network Program of the Ministry of Education, Culture, Sports, Science and Technology (MEXT).
Publisher Copyright:
© 2017 Optical Society of America.
PY - 2017/12/1
Y1 - 2017/12/1
N2 - 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.
AB - 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.
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U2 - 10.1364/JOSAB.34.002558
DO - 10.1364/JOSAB.34.002558
M3 - Article
AN - SCOPUS:85037531812
SN - 0740-3224
VL - 34
SP - 2558
EP - 2568
JO - Journal of the Optical Society of America B: Optical Physics
JF - Journal of the Optical Society of America B: Optical Physics
IS - 12
ER -