Volume 47, Number 5, September I 1999
|Page(s)||538 - 544|
|Published online||01 September 2002|
Smoothing a current-carrying atomic mirror
Laboratoire Charles Fabry de l'Institut d'Optique, Unité Mixte du CNRS No. 8501 B.P. 147, 91403 Orsay CEDEX, France
2 Department of Physics, Harvard University - Cambridge, MA, 02138, USA
Accepted: 1 July 1999
We have measured the magnitude and roughness of the reflecting potential produced by a current-carrying magnetic mirror from which cold rubidium atoms have been bounced at normal incidence. By varying the current in the mirror, a study of the potential barrier from which the atoms in different magnetic substates bounce has been made. A combination of time-of-flight and imaging techniques allowed us to study the roughness of the reflecting potential. We have demonstrated that the observed roughness can be reduced by additional wires to compensate for the finite-size effects, and by careful control of the direction of the magnetic bias field.
PACS: 03.75.Be – Atom and neutron optics / 32.80.Pj – Optical cooling of atoms; trapping / 85.70.Ay – Magnetic device characterization, design and modeling
© EDP Sciences, 1999
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