Stabilization of autoionizing states of barium by laser-induced, stimulated emission of light is demonstrated. Relative to purely flourescent stabilization, the data clearly show an enhancement of the stabilization process for laser pulses short compared to the flourescent lifetime of the autoionizing states. Shakeup spectra in which the principal quantum number of both electrons changes during the stimulated emission process are also clearly demonstrated.
H. N. Ereifej and J. G. Story, "Laser-Induced Stabilization of Autoionizing States," Physical Review A - Atomic, Molecular, and Optical Physics, vol. 60, no. 5, pp. 3947-3951, American Physical Society (APS), Nov 1999.
The definitive version is available at https://doi.org/10.1103/PhysRevA.60.3947
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