Velocity selection of ultra-cold atoms with Fabry-Perot laser devices: improvements and limits

Details Velocity selection of ultra-cold atoms with Fabry-Perot laser devices: improvements and limits Velocity selection of ultra-cold atoms with Fabry-Perot laser devices: improvements and limits

2005-02-28

arxiv.org/abs/quant-ph/0502180v1

Physics

Quantum Physics

4 pages, 5 figures

Scientific paper

10.1088/0953-4075/38/15/007

We discuss a method to select the velocities of ultra-cold atoms with a modified Fabry-Perot type of device made of two effective barriers and a well created, respectively, by blue and red detuned lasers. The laser parameters may be used to select the peak and width of the transmitted velocity window. In particular, lowering the central well provides a peak arbitrarily close to zero velocity having a minimum but finite width. The low-energy atomic scattering off this laser device is parameterized and approximate formulae are found to describe and explain its behaviour.

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