Versatile two-dimensional potentials for ultra-cold atoms

We propose and investigate a technique for generating smooth two-dimensional potentials for ultra-cold atoms based on the rapid scanning of a far-detuned laser beam using a two-dimensional acousto-optical modulator (AOM). We demonstrate the implementation of a feed-forward mechanism for fast and acc...

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Bibliographic Details
Published inOptics express Vol. 16; no. 3; pp. 1405 - 1412
Main Authors Schnelle, S K, van Ooijen, E D, Davis, M J, Heckenberg, N R, Rubinsztein-Dunlop, H
Format Journal Article
LanguageEnglish
Published United States 04.02.2008
Subjects
Acoustics
Computer Simulation
Lasers
Models, Theoretical
Quantum Theory
Scattering, Radiation
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Summary:We propose and investigate a technique for generating smooth two-dimensional potentials for ultra-cold atoms based on the rapid scanning of a far-detuned laser beam using a two-dimensional acousto-optical modulator (AOM). We demonstrate the implementation of a feed-forward mechanism for fast and accurate control of the spatial intensity of the laser beam, resulting in improved homogeneity for the atom trap. This technique could be used to generate a smooth toroidal trap that would be useful for static and dynamic experiments on superfluidity and persistent currents with ultra-cold atoms.
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ISSN:1094-4087
1094-4087
DOI:10.1364/OE.16.001405