RELATIVE TRANSITION PROBABILITIES FOR OD $A^{2}\Sigma^{+} - X^{2}\Pi_{i}$
Publisher:
Ohio State UniversityAbstract:
A frequency doubled tunable dye laser has been used to pump $\nu^{\prime} = 0, 1,$ and 2 of the $A^{2}\Sigma^{+}$ state of the OD molecule, providing ratios of transition probabilities (Einstein coefficients) for bands having a common $\nu^{\prime}$. Six independent ratios were measured and compared, along with data from other experimental investigations, to ratios calculated with a Morse oscillator model. As anticipated from a similar $study^{1}$ on the OH species, a linear electronic transition moment of the form $R_{e}(r) = (1 - 0.75r)$, with r in {\AA}, yields agreement to within experimental uncertainties and is clearly preferable to a transition moment varying exponentially with r.
Description:
$^{1}$ D. R. Crosley, R. K. Lengel, J. Quant. Spectrosc. Radiat. Transfer 15, 579 (1975). This work was supported, in part, by the National Science Foundation.
Author Institution: Ballistic Research Laboratories; Department of Chemistry, University of Wisconsin
Author Institution: Ballistic Research Laboratories; Department of Chemistry, University of Wisconsin
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