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Double-impulse magnetic focusing of launched cold atoms.

Arnold, A. S. and Pritchard, M. J. and Smith, D. A. and Hughes, I. G. (2006) 'Double-impulse magnetic focusing of launched cold atoms.', New journal of physics., 8 . p. 53.


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 single-impulse magnetic lenses. An analysis of clouds focused by the double-impulse technique is presented.

Item Type:Article
Keywords:Current-carrying wires, Guiding neutral atoms, Cesium atoms, Floppydisk, Mirror, Optics, Trap, Manipulation, Reflection, Surfaces.
Full text:(NA) Not Applicable
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Date accepted:No date available
Date deposited:No date available
Date of first online publication:April 2006
Date first made open access:No date available

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