# THE $A^{2}\Pi - X^{2}\Sigma^{+}$ TRANSITION IN YTTERBIUM MONOFLUORIDE:

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 Title: THE $A^{2}\Pi - X^{2}\Sigma^{+}$ TRANSITION IN YTTERBIUM MONOFLUORIDE: Creators: Adam, A. G.; Beyea, K. L.; Clarke, T. E.; Linton, C.; Peers, J. R. D. Issue Date: 1993 Publisher: Ohio State University Abstract: High resolution excitation spectra of several isotopomers of YbF have been obtained using a single frequency ring dye laser. The previous analysis of Barrow and $Chojnicki^{1}$ has been extended beyond the $0-0$ transition. The $0-0$ band has been obtained at sub-Doppler resolution using Intermodulated Fluorescence. The results of the analysis will be presented including a discussion of A-doubling in the $^{2}\Sigma^{+}$ state, spin-rotation structure in the $^{2}\Sigma^{+}$ state and hyperfine structure. The correlation of the results with ligand field theory predictions will be discussed. Description: $^{1}$. R.F. Barrow and A.H. Chojnicki, J. Chem. Soc. Faraday Trans. 2, 71, 728-735 (1975). Author Institution: Chemistry Department, University of New Brunswick; Physics Department, University of New Brunswick, Box 4400, Fredericton, N.B., Canada, E3B 5A3. URI: http://hdl.handle.net/1811/18596 Other Identifiers: 1993-TB-12