Absorption properties of infrared active gases at high pressures. II - N2O and CO

Details Absorption properties of infrared active gases at high pressures. II - N2O and CO Absorption properties of infrared active gases at high pressures. II - N2O and CO

Oct 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986jqsrt..36..283f&link_type=abstract

Journal of Quantitative Spectroscopy and Radiative Transfer (ISSN 0022-4073), vol. 36, Oct. 1986, p. 283-287.

Physics

3

Carbon Monoxide, Gas Pressure, Infrared Absorption, Molecular Spectra, Nitrous Oxides, High Pressure, Near Infrared Radiation, Spectral Bands, Spectral Line Width

Scientific paper

At high pressures, intensities of 0.153 + or - 0.002, 1.14 + or - 0.01, 1.67 + or - 0.01, 0.035 + or - 0.002, 3.25 + or 0.02, and 49.9 + or - 0.3/cm per (atm-cm)STP for the 2.0, 2.1, 2.3, 2.5, 2.6, and 2.9 micron N2O bands, respectively, and 2.07 + or - 0.02/cm per (atm-cm)STP for the first overtone CO band were found. Equivalent widths of selfbroadening spectra calculated from the Lorenzian line profile are found to gradually exceed measured values for both molecules as the absorber amount increases, due to excess absorption in the band wings of the calculated spectra, and it is suggested that the spectral lines of CO2, N2O and CO are sub-Lorenzian at high pressures.

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