Abstract
Fluorescence spectroscopy is used as an aid in the identification of two-photon transitions in Na2. Several methods are introduced and used to identify the transitions and analyze the spectra. By using these methods, the upper-level rotational quantum number, energy, and electronic character may be determined without any assumptions about the state to which the upper level belongs. Twenty-nine two-photon transitions were observed and analyzed. A Dunham expansion for the energy levels allowed 18 of the 29 to be associated with the state. They were used to calculate new values of the Dunham coefficients for that state. These were in close agreement with values obtained in polarization-labeling experiments.
© 1987 Optical Society of America
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