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Line Intensities for the 8-μm Bands of SO2

✍ Scribed by P.M. Chu; S.J. Wetzel; W.J. Lafferty; A. Perrin; J.-M. Flaud; Ph. Arcas; G. Guelachvili

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
276 KB
Volume
189
Category
Article
ISSN
0022-2852

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✦ Synopsis

Using both high-resolution (R Å 0.003 cm 01 ) and medium-resolution (R Å 0.12 cm 01 ) Fourier transform spectroscopy, it has been possible to measure accurately a large set of individual line intensities for the n 1 and n 3 bands of SO 2 in the 950-1400 cm 01 spectral region. These intensities were introduced into a least-squares fit calculation allowing one to obtain the expansion of the transition moment operator of the n 1 and n 3 bands. For these intensity calculations, the theoretical model takes into account the vibration-rotation interactions linking the upper levels involved in the n 1 , 2n 2 , and n 3 interacting SO 2 bands. Finally, a synthetic spectrum of the 8-mm SO 2 bands has been generated using the dipole moment expansion determined in this work and the molecular parameters and the Hamiltonian matrix given in a previous analysis.

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