Spectroscopy of ^3P^0 states of alkaline earths
- 1 July 1977
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 1 (1), 19-21
- https://doi.org/10.1364/ol.1.000019
Abstract
Using multiphoton-ionization spectroscopy, we have observed transitions from the 1S0 ground states to the 4snp, 5snp, and 6snp3P0 states of the alkaline earth atoms Ca, Sr, and Ba, respectively. One-photon transitions from a 1S0 ground state to 3P0 states are spin-forbidden. We have identified these series in Ca and Sr up to n > 70, whereas previous efforts have failed to identify these series beyond n = 7. These series behave like nearly constant quantum-defect (δ) series with δCa = 1.97 and δSr = 2.90. Preliminary results for Ba, up to n = 60, indicate greater complexity.Keywords
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