ROTATIONAL ANALYSIS OF THE $A^{2}\Pi - X^{2}\Sigma^{+}$ SYSTEM OF SrF

$^{1}$Peter J. Domaille, Timothy C. Steimle, and David O. Harris, J. Mol. Spectrosc. 68, 146 (1977).""Author Institution: Quantum Institute and Department of Chemistry, University of California; Central Research and Development Department, E. I. du Pont de Nemours and CompanyThe excitation spectrum of the $A^{2}\Pi_{r} - X^{2}\Sigma^{+}$ band system of SrF has been measured using tunable cw dye laser excitation spectroscopy. The spectrum has been analyzed to obtain rotational and vibrational constants for the $A^{2}\Pi_{r}$ and $X^{2} \Sigma^{+}$ states. Results from our previous Microwave-Optical Double Resonance measurements for the $X^{2} \Sigma^{+}$ $state^{1}$ were merged with those from this optical analysis to obtain more precise values for the spectroscopic constants. Results of the analysis will be discussed