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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 linewidth of 0.8 MHz using another 88.4-THz DFG source. The transition frequencies are determined with an uncertainty of a few tens kilohertz using the OFC.
Issue Date:22-Jun-20
Publisher:International Symposium on Molecular Spectroscopy
Citation Info:APS
Genre:CONFERENCE PAPER/PRESENTATION
Type:Text
Language:English
URI:http://hdl.handle.net/2142/107699
Date Available in IDEALS:2020-06-26


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