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)
, Jones, K.
, Lett, P.
, Van der Straten, P.
and Heideman, H.
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 October 23, 2021)