Computer Science
Scientific paper
Aug 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993jqsrt..50..193s&link_type=abstract
Journal of Quantitative Spectroscopy & Radiative Transfer (ISSN 0022-4073), vol. 50, no. 2, p. 193-198.
Computer Science
3
Carbon Dioxide, Laser Spectroscopy, Spectral Line Width, Nitrogen, Oxygen, Semiconductor Lasers, Spectral Bands, Tunable Lasers
Scientific paper
Absolute intensities for the Q-branch of the 4nu-2 - nu-1 + nu-1/2 (20,003-11,101) band in CO2 were measured for the first time. Measurements were performed for lines Q10 to Q28, at temperatures ranging from 385 to 426 K, for pressures from 3 to 40 torr, using our long wavelength tunable diode laser spectrometer. The combination of tunable diode lasers, a White cell, and a blocked impurity band detector made it possible to obtain signal to noise ratios greater than 1000 in the 471/cm spectral region, with about 3 x 10 exp -4/cm spectral resolution. The band strength was found to be 8.6(2) x 10 exp -25 cm/molec at 296 K, and the Hermann-Wallis factor was determined. Comparison with the values listed in the HITRAN 92 data base are presented. Self-, N2- and O2-broadening coefficients were also measured.
Mumma Michael J.
Reuter Dennis C.
Sirota Mark J.
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