Experimental observation of angular correlation between Rydberg electrons in the Ban’l’nlautoionizing series
- 1 September 1990
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 42 (5) , 2655-2660
- https://doi.org/10.1103/physreva.42.2655
Abstract
We have observed the Ba n’ np and n’ nd double Rydberg series (n>60,n’<0.75n) using a five-laser excitation scheme. A single photon excites the n’ nl levels from an initially populated Ba 8nl autoionizing state. If there were no correlation between the two valence electrons, we would observe only the n’pnp or n’pnd states. However, we observe strong excitation to n’snl and n’dnl states as well. We observe virtually no n’snl and n’dnl states for n’<0.4n. For n’>0.75n the Rydberg structure that is observed for the lower n’ levels disappears into an apparently unstructured continuum.
Keywords
This publication has 9 references indexed in Scilit:
- Positional correlation in laser-excited three-body Coulomb systemsPhysical Review Letters, 1990
- Observation of Ba^+np_1/2 and ngj Rydberg seriesJournal of the Optical Society of America B, 1989
- Observation of an electronic correlation for double-Rydberg states of bariumPhysical Review Letters, 1989
- Laser spectroscopy of doubly excitedandstates of CaPhysical Review A, 1988
- Laser-microwave ionisation mass spectroscopy of ion Rydberg states: Ba+spectrumJournal of Physics B: Atomic and Molecular Physics, 1987
- Spectroscopic decay-rate measurements below the laser linewidthOptics Letters, 1982
- Doubly Excited Autoionizing Rydberg States of SrPhysical Review Letters, 1978
- Repetitively Pulsed Tunable Dye Laser for High Resolution SpectroscopyApplied Optics, 1972
- New Autoionizing Atomic Energy Levels in He, Ne, and ArPhysical Review Letters, 1963