Studies of high- n, n1G4 and n1H5 strontium Rydberg states using microwave-optical multiphoton excitation
Abstract
We demonstrate that combined microwave/optical four- and five-photon excitation can be used to generate sizable numbers of high- n, 120 <= n <= 160, strontium n1G4 and n1H5 Rydberg states, respectively, for use in studies of novel ultralong-range Rydberg molecules, of autoionization, and of planetary atoms. The quantum defects for both these states (and the n1I6) were measured using microwave spectroscopy and are in good agreement with theoretical predictions based on a two-active-electron model.
Research supported by the NSF, the Robert A Welch Foundation, and the FWF (Austria).- Publication:
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APS Division of Atomic, Molecular and Optical Physics Meeting Abstracts
- Pub Date:
- 2020
- Bibcode:
- 2020APS..DMPK01002B