Abstract
The negative ion has been studied by autodetachment spectroscopy in a coaxial laser-ion beam spectrometer. Sharp resonances were observed at photon energies near the photodetachment threshold, and the sharp structure could be assigned as Σ(v=0) transition, followed by autodetachment of the state. A rotational assignment was accomplished and the observed linewidths as a function of rotational energy elucidate the dynamics of the autodetachment process. Saturation of this transition and the resulting optical pumping dips give a unique method of determining the absolute cross section of the transition.
- Received 15 January 1987
DOI:https://doi.org/10.1103/PhysRevA.36.699
©1987 American Physical Society