Collisional broadening of the A2Σ+←X2Π(0,0) band of OH by H2O and CO2 in atmospheric-pressure flames.

Details Collisional broadening of the A2Σ+←X2Π(0,0) band of OH by H2O and CO2 in atmospheric-pressure flames. Collisional broadening of the A2Σ+←X2Π(0,0) band of OH by H2O and CO2 in atmospheric-pressure flames.

Jan 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989jqsrt..41...29r&link_type=abstract

Journal of Quantitative Spectroscopy and Radiative Transfer, vol. 41, issue 1, pp. 29-42

Physics

29

Line Broadening: Oh

Scientific paper

Absorption lineshapes of OH found in hot post-flame gases were measured using a rapid-tuning single-mode laser. Collisional linewidths due to broadening by H2O and CO2 were determined by fitting the observed lineshapes to standardized Voigt profiles. Lines corresponding to transitions with ground-state angular momentum quantum numbers (J"-values) ranging from 1.5 to 17.5 in the R1-branch of the A2Σ+←X2Π(0,0) band near 307 nm were probed. The temperature-dependence of collisional broadening was investigated over the range 1470 - 2370K.

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