Laser cooling and magnetic trapping at several tesla

Laser cooling and magnetic trapping of (85)Rb atoms have been performed in extremely strong and tunable magnetic fields, extending these techniques to a new regime and setting the stage for a variety of cold atom and plasma experiments. Using a superconducting Ioffe-Pritchard trap and an optical mol...

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Bibliographic Details
Published in:Physical review letters 2005-02, Vol.94 (7), p.073003.1-073003.4, Article 073003
Main Authors: GUEST, J. R, CHOI, J.-H, HANSIS, E, POVILUS, A. P, RAITHEL, G
Format: Article
Language:English
Subjects:
Atomic and molecular physics
Atomic properties and interactions with photons
Coherent control of atomic interactions with photons
Exact sciences and technology
Mechanical effects of light on atoms, molecules and ions
Optical cooling of atoms
trapping
Photon interactions with atoms
Physics
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Summary:Laser cooling and magnetic trapping of (85)Rb atoms have been performed in extremely strong and tunable magnetic fields, extending these techniques to a new regime and setting the stage for a variety of cold atom and plasma experiments. Using a superconducting Ioffe-Pritchard trap and an optical molasses, 2.4 x 10(7) atoms were laser cooled to the Doppler limit and magnetically trapped at bias fields up to 2.9 T. At magnetic fields up to 6 T, 3 x 10(6) cold atoms were laser cooled in a pulsed loading scheme. These bias fields are well beyond an order of magnitude larger than those in previous experiments. Loading rates, molasses lifetimes, magnetic-trapping times, and temperatures were measured using photoionization and electron detection.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.94.073003