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Single-impulse magnetic focusing of launched cold atoms.

Pritchard, M. J. and Arnold, A. S. and Smith, D. A. and Hughes, I. G. (2004) 'Single-impulse magnetic focusing of launched cold atoms.', Journal of physics B : atomic, molecular and optical physics., 37 (22). pp. 4435-4450.


We have theoretically investigated the focusing of a launched cloud of cold atoms. Time-dependent spatially-varying magnetic fields are used to impart impulses leading to a three-dimensional focus of the launched cloud. We discuss possible coil arrangements for a new focusing regime: isotropic 3D focusing of atoms with a single-impulse magnetic lens. We investigate focusing aberrations and find that, for typical experimental parameters, the widely used assumption of a purely harmonic lens is often inaccurate. The baseball lens offers the best possibility for isotropically focusing a cloud of weak-field-seeking atoms in 3D.

Item Type:Article
Keywords:Current-carrying wires, Guiding neutral atoms, Cesium atoms, Floppy disk, Mirror, Optics, Laser, Trap, Manipulation, Propagation.
Full text:(NA) Not Applicable
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Date accepted:No date available
Date deposited:No date available
Date of first online publication:November 2004
Date first made open access:No date available

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