Spectroscopic observation of doubly excited 8sns and 7dns states Ca with multistep laser excitation
- 14 August 1988
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic, Molecular and Optical Physics
- Vol. 21 (15) , L439-L444
- https://doi.org/10.1088/0953-4075/21/15/004
Abstract
Using multistep laser excitation via 4sn's Rydberg states, doubly excited mlns (ml=8s and 7d; m+1<or=n<or=20) states of Ca atoms have been observed. The quantum defects of the observed states have been obtained and discussed. For the states with m<<n, the quantum defects are almost independent of n in both the 8sns and 7dns series. For the m approximately=n states, however, the quantum defect of the 7dns state increases remarkably as n decreases to approach m, while that of the 8sns state does not significantly change but rather tends to decrease with decreasing n.Keywords
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