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 journalArticlepeer-review

7 Citations (Scopus)


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
Issue numberDecember
Publication statusPublished - 7 Dec 2006


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


Dive into the research topics of 'Transport of launched cold atoms with a laser guide and pulsed magnetic fields'. Together they form a unique fingerprint.

Cite this