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Spectroscopy of Autoionizing Doubly-Excited States in Ultracold Na2 Molecules Produced by Photoassociation



A Amelink, Kevin Jones, Paul D. Lett, P Van der Straten, H G. Heideman


We have performed photoassociation spectroscopy to study the doubly-excited states of Na2 involved in the associative ionization of colliding Na(3P) atoms. Rovibrational levels of two doubly-excited potentials connected to the P3/2 + P3/2 asymptote, one of Ou and one of u symmetry, have been identified. These two doubly-excited potentials dominate the route to ionization used in photoassociation experiments of cold Na. Binding energies and rotational constants for all the vibrational levels with binding energies < 50 GHz have been measured. The asymptotic potentials and short range ionization probabilities are extracted from the data.
Physical Review A (Atomic, Molecular and Optical Physics)
No. 4


autioionization, diatomic molecules, doubly-excited states, laser cooling, laser spectroscopy, pho9toassociation spectroscopy, sodium spectroscopy


Amelink, A. , Jones, K. , Lett, P. , Van der Straten, P. and Heideman, H. (2000), Spectroscopy of Autoionizing Doubly-Excited States in Ultracold Na<sub>2</sub> Molecules Produced by Photoassociation, Physical Review A (Atomic, Molecular and Optical Physics) (Accessed June 14, 2024)


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Created March 31, 2000, Updated October 12, 2021