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Abbreviated Journal Title

Phys. Rev. A

Keywords

Photoionization; Magnesium; Barium; Optics; Physics; Atomic; Molecular & Chemical

Abstract

In a high-resolution analysis of the electron spectrum we have followed the decay of the excitations from the 4p level of atomic strontium. We show that the results of earlier measurements at lower resolution can be accounted for by overlapping resonances. We also find that excitations at higher energy tend to produce highly excited states of the ion, although the production of the states lying lowest in energy remains considerable. Finally, by a comparison with a fluorescence spectrum from the 5p level, we demonstrate that much of the strength associated with the 5p state occurs through cascading from higher levels when they are produced. This behavior severely complicates the interpretation of alignment of excited states when these states are produced by decay of resonances.

Journal Title

Physical Review A

Volume

48

Issue/Number

1

Publication Date

1-1-1993

Document Type

Article

Language

English

First Page

442

Last Page

451

WOS Identifier

WOS:A1993LM34100063

ISSN

1050-2947

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