Photoionization of the francium [7P.sub.3/2] state

We have measured the non-resonant photoionization cross section of the [7P.sub.3/2] state of francium for 442 nm light to be 20.8 [+ or -] 7.1 Mb. Atoms were irradiated in a magneto-optical trap, and we deduce the photoionization rate from the change in trap lifetime. The result is consistent with a...

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Bibliographic Details
Published inCanadian journal of physics Vol. 95; no. 3; pp. 234 - 237
Main Authors Collister, R, Zhang, J, Tandecki, M, Aubin, S, Gomez, E, Gwinner, G, Orozco, L.A, Pearson, M.R, Behr, J.A
Format Journal Article
LanguageEnglish
Published NRC Research Press 01.03.2017
Subjects
Francium
Observations
Optical properties
Photoionization
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Summary:We have measured the non-resonant photoionization cross section of the [7P.sub.3/2] state of francium for 442 nm light to be 20.8 [+ or -] 7.1 Mb. Atoms were irradiated in a magneto-optical trap, and we deduce the photoionization rate from the change in trap lifetime. The result is consistent with a simple extrapolation of known cross sections for other alkali atoms.
ISSN:0008-4204
1208-6045
DOI:10.1139/cjp-2016-0311