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Title:HIGH-RESOLUTION SPECTROSCOPY OF TRANSIENT FREE RADICALS WITH A MID-INFRARED DUAL-COMB SPECTROMETER
Author(s):Luo, Pei-Ling
Subject(s):Radicals
Abstract:We performed time-resolved dual-comb spectroscopy near 3400 \wn upon flash photolysis of flowing mixtures of \chem{(COCl)_2} or \chem{Cl_2}/\chem{CH_3OH}/\chem{O_2}/\chem{N_2}/\chem{NO}. The high-resolution transient absorption spectroscopy was demonstrated by utilizing an electro-optic dual-comb system\footnote{Ref: Phys. Chem. Chem. Phys. 21, 18400, (2019)} coupled with a Herriott flow cell. With this new approach, absorbance signals of several species in the flow reactor, such as \chem{HO_2}, \chem{CH_3OH}, \chem{H_2CO}, and \chem{OH} were able to be simultaneously monitored with adequate spectral and temporal resolutions. Based on great 3D spectral features, reaction kinetics of \chem{HO_2} with \chem{NO} were also studied.
Issue Date:23-Jun-20
Publisher:International Symposium on Molecular Spectroscopy
Citation Info:APS
Genre:CONFERENCE PAPER/PRESENTATION
Type:Text
Language:English
URI:http://hdl.handle.net/2142/107515
Date Available in IDEALS:2020-06-26


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