Intensities, broadening and narrowing parameters in the ν3 band of methane
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ArticleAuthors
Es-sebbar, Et-touhami
Farooq, Aamir

KAUST Department
Chemical Kinetics & Laser Sensors LaboratoryClean Combustion Research Center
Mechanical Engineering Program
Physical Science and Engineering (PSE) Division
Date
2014-12Permanent link to this record
http://hdl.handle.net/10754/347274
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The P-branch of methane's ν3 band is probed to carry out an extensive study of the 2905-2908cm-1 infrared spectral region. Absolute line intensities as well as N2-, O2-, H2-, He-, Ar- and CO2-broadening coefficients are determined for nine transitions at room temperature. Narrowing parameters due to the Dicke effect have also been investigated. A narrow emission line-width (~0.0001cm-1) difference-frequency-generation (DFG) laser system is used as the tunable light source. To retrieve the CH4 spectroscopic parameters, Voigt and Galatry profiles were used to simulate the measured line shape of the individual transitions.Citation
Intensities, broadening and narrowing parameters in the ν3 band of methane 2014, 149:241 Journal of Quantitative Spectroscopy and Radiative TransferPublisher
Elsevier BVAdditional Links
http://linkinghub.elsevier.com/retrieve/pii/S0022407314003525ae974a485f413a2113503eed53cd6c53
10.1016/j.jqsrt.2014.08.008