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Transport of launched cold atoms with a laser guide and pulsed magnetic fields

Pritchard, Matthew J.; Arnold, Aidan S.; Cornish, Simon L.; Hallwood, David W.; Pleasant, Chris V.S.; Hughes, Ifan G.

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Authors

Matthew J. Pritchard

Aidan S. Arnold

David W. Hallwood

Chris V.S. Pleasant



Abstract

We propose the novel combination of a laser guide and magnetic lens to transport a cold atomic cloud. We have modelled the loading and guiding of a launched cloud of cold atoms with the optical dipole force. We discuss the optimum strategy for loading typically 30% of the atoms from a magneto-optical trap (MOT) and guiding them vertically through 22 cm. However, although the atoms are tightly confined transversely, thermal expansion in the propagation direction still results in a density loss of two orders of magnitude. By combining the laser guide with a single impulse from a magnetic lens we show one can actually increase the density of the guided atoms by a factor of 10.

Citation

Pritchard, M. J., Arnold, A. S., Cornish, S. L., Hallwood, D. W., Pleasant, C. V., & Hughes, I. G. (2006). Transport of launched cold atoms with a laser guide and pulsed magnetic fields. New Journal of Physics, 8, Article 309. https://doi.org/10.1088/1367-2630/8/12/309

Journal Article Type Article
Online Publication Date Dec 7, 2006
Publication Date Dec 7, 2006
Deposit Date Jan 23, 2012
Publicly Available Date May 18, 2017
Journal New Journal of Physics
Publisher IOP Publishing
Peer Reviewed Peer Reviewed
Volume 8
Article Number 309
DOI https://doi.org/10.1088/1367-2630/8/12/309

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