Laser cooling and photoionization of alkali atoms

Year: 2000

Authors: Arimondo E., Ciampini D., Fuso F., Gabbanini C.

Autors Affiliation: Istituto Nazionale per la Fisica della Materia, Dipartimento di Fisica, Universita di Pisa, Via F. Buonarroti 2, I-56127 Pisa, Italy; Istituto Fisica Atomica e Molecolare del CNR, Via del Giardino 7, I-56127 Pisa, Italy

Abstract: We carry out photoionization experiments on laser-cooled alkali atoms by irradiating rubidium and cesium magneto-optical traps (MOTs) with a photoionizing laser beam. Analysis of the loading behavior of the traps allows us to determine photoionization cross-sections for the first excited state of rubidium and cesium based on a trap load/loss model. In addition, our experimental findings reveal systematic peculiarities, which can be ascribed to the low temperature of the atomic samples under investigation. (C) 2000 Published by Elsevier Science B.V. All rights reserved.


Volume: 154      Pages from: 527  to: 535

KeyWords: laser cooling; photoionization;
DOI: 10.1016/S0169-4332(99)00459-6

Citations: 6
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