# LASER-INDUCED RESONANCE FLUORESCENCE SPECTROSCOPY.

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/15833

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 Title: LASER-INDUCED RESONANCE FLUORESCENCE SPECTROSCOPY. Creators: Demtroder, W.; Zare, R. N.; McClintock, M. Issue Date: 1969 Publisher: Ohio State University Abstract: The argon ion laser lines at 4658, 4727, 4880, 4965, 5017 and $5145\AA$ are each found to excite one or more resonance fluorescence series of the $Na_{2} (X {^{1}}\Sigma_{g}^{+} - B {^{1}} II_{u})$ blue-green band system. Altogether, nineteen different fluorescence progressions have been identified and assigned v,J quantum numbers. The absolute wavenumbers of many of these emission lines have been measured interferometrically using a Fabry-Perot etalon crossed with a Bass-Kessler type spectrograph. A revised set of spectroscopic constants has been determined for both the upper and lower states which reproduce the observed term energies to better than $0.1 cm^{-1}$ on the average. Using these improved spectroscopic data, potential curves have been constructed for the B and X states of $Na_{2}$ by the Rydberg-Klein-Rees method. These potential curves are used in turn to compute Franck-Condon factors for the $Na_{2}$ B-X band system. Description: Author Institution: Joint Institute for Laboratory Astrophysics; National Bureau of Standards URI: http://hdl.handle.net/1811/15833 Other Identifiers: 1969-S-6