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The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including those from the School of Psychological Sciences & Health - but also papers by researchers based within the Faculties of Science, Engineering, Humanities & Social Sciences, and from the Strathclyde Business School.

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Double-impulse magnetic focusing of launched cold atoms

Arnold, Aidan S. and Pritchard, Matthew J. and Smith, David A. and Hughes, Ifan G. (2006) Double-impulse magnetic focusing of launched cold atoms. New Journal of Physics, 8 (53). ISSN 1367-2630

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Abstract

We have theoretically investigated three-dimensional focusing of a launched cloud of cold atoms using a pair of magnetic lens pulses (the alternate-gradient method). Individual lenses focus radially and defocus axially or vice versa. The performance of the two possible pulse sequences are compared and found to be ideal for loading both 'pancake' and 'sausage' shaped magnetic/optical microtraps. It is shown that focusing aberrations are considerably smaller for double-impulse magnetic lenses compared to singleimpulse magnetic lenses. An analysis of clouds focused by the double-impulse technique is presented.