Single-impulse magnetic focusing of launched cold atoms

Pritchard, M.J.; Arnold, A.S.; Smith, D.A.; Hughes, I.G.

Abstract

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.

Citation

Pritchard, M., Arnold, A., Smith, D., & Hughes, I. (2004). Single-impulse magnetic focusing of launched cold atoms. Journal of Physics B: Atomic, Molecular and Optical Physics, 37(22), 4435-4450. https://doi.org/10.1088/0953-4075/37/22/004

• Journal Article Type: Article
• Publication Date: 2004-11
• Deposit Date: May 7, 2008
• Publicly Available Date: May 7, 2008
• Journal: Journal of Physics B: Atomic, Molecular and Optical Physics
• Print ISSN: 0953-4075
• Electronic ISSN: 1361-6455
• Publisher: IOP Publishing
• Peer Reviewed: Peer Reviewed
• Volume: 37
• Issue: 22
• Pages: 4435-4450
• DOI: https://doi.org/10.1088/0953-4075/37/22/004
• Keywords: Current-carrying wires, Guiding neutral atoms, Cesium atoms, Floppy disk, Mirror, Optics, Laser, Trap, Manipulation, Propagation.
• Public URL: https://durham-repository.worktribe.com/output/1582227