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Title:Precise Frequency Measurements Of The 2ν3 A1 - ν3 Band Transitions Of Methane With Comb-referenced Infrared-infrared Double-resonance
Author(s):Sasada, Hiroyuki
Contributor(s):Okuda, Shoko; Inaba, Hajime; Okubo, Sho
Subject(s):Mini-symposium: Precision Spectroscopy for Fundamental Physics
Abstract:We have carried out infrared-infrared double-resonance spectroscopy of the 2\nub{3} A$_{1}$ - \nub{3} band of methane. The \nub{3} band transitions are pumped using a 90.5 THz difference-frequency-generation (DFG) source frequency-controlled with an optical frequency comb (OFC), and ten tetrahedral components of the Q(1) to Q(4) transitions from the pumped levels are observed with a half-width at half maximum of 0.43 MHz using another 88.5 THz DFG source. The transition frequencies are determined with an uncertainty of 10 kHz using the OFC.
Issue Date:2021-06-23
Publisher:International Symposium on Molecular Spectroscopy
Genre:Conference Paper / Presentation
Date Available in IDEALS:2021-09-24

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