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Published July 1962 | public
Journal Article

Approximate spectral absorption coefficient calculations for electronic band systems belonging to diatomic molecules


The spectral absorption coefficients in electronic band systems of diatomic emitters have been computed in the past by models that may be described as 'the just overlapping line model' and a model 'utilizing a smeared out rotational structure'. Although the basic relations are obtained by utilizing somewhat different physical arguments, the resulting equations are, in fact, identical. Spectral absorption coefficients have been calculated for the NO γ-bands at 2000ºK by using the approximate theoretical relations. The calculated results are in good agreement with estimates derived by numerical calculations in which, however, the absorption coefficient data were averaged over intervals of 2000 cm^(-1).

Additional Information

© 1961 Pergamon Press Ltd. Received 22 November 1961. Available online 24 July 2002. Supported by the Air Force Office of Scientific Research under Contract AF 49 (638)-984.

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August 19, 2023
October 21, 2023