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

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

Research output: Contribution to journalArticle

6 Citations (Scopus)

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.
Original languageEnglish
Article number309
Pages (from-to)1-21
Number of pages21
JournalNew Journal of Physics
Volume8
Issue numberDecember
DOIs
Publication statusPublished - 7 Dec 2006

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magnetic lenses
magnetic fields
lasers
atoms
impulses
thermal expansion
lenses
traps
dipoles
propagation

Keywords

  • cold atoms
  • laser guide
  • pulsed magnetic fields
  • magnetic lens
  • optics

Cite this

Pritchard, M. J., Arnold, A. S., Cornish, S. L., Hallwood, D. W., Pleasant, C. V. S., & Hughes, I. G. (2006). Transport of launched cold atoms with a laser guide and pulsed magnetic fields. New Journal of Physics, 8(December), 1-21. [309]. https://doi.org/10.1088/1367-2630/8/12/309
Pritchard, Matthew J. ; Arnold, Aidan S. ; Cornish, Simon L. ; Hallwood, David W. ; Pleasant, Chris V.S. ; Hughes, Ifan G. / Transport of launched cold atoms with a laser guide and pulsed magnetic fields. In: New Journal of Physics. 2006 ; Vol. 8, No. December. pp. 1-21.
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Pritchard, MJ, Arnold, AS, Cornish, SL, Hallwood, DW, Pleasant, CVS & Hughes, IG 2006, 'Transport of launched cold atoms with a laser guide and pulsed magnetic fields', New Journal of Physics, vol. 8, no. December, 309, pp. 1-21. https://doi.org/10.1088/1367-2630/8/12/309

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.

In: New Journal of Physics, Vol. 8, No. December, 309, 07.12.2006, p. 1-21.

Research output: Contribution to journalArticle

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T1 - Transport of launched cold atoms with a laser guide and pulsed magnetic fields

AU - Pritchard, Matthew J.

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AU - Hughes, Ifan G.

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KW - optics

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Pritchard MJ, Arnold AS, Cornish SL, Hallwood DW, Pleasant CVS, Hughes IG. Transport of launched cold atoms with a laser guide and pulsed magnetic fields. New Journal of Physics. 2006 Dec 7;8(December):1-21. 309. https://doi.org/10.1088/1367-2630/8/12/309