Scientific Results

Fast and efficient loading of a Rb magneto-optical trap using light-induced atomic desorption

Year: 2003

Authors: Atutov S.N., Calabrese R., Guidi V., Mai V., Rudavets A.G., Scansani E., Tomassetti L., V. Biancalana V., Burchianti A., Marinelli C., Mariotti E., Moi L, Veronesi S.

Autors Affiliation: Dipartimento di Fisica dell’Università di Ferrar
Dipartimento di Fisica dell’Università di Siena INFM and via Banchi di Sotto 55, 53100 Siena, Italy

Abstract: We have obtained fast loading of a rubidium magneto-optical trap and very high collection efficiency by capturing the atoms desorbed by a light flash from a polydimethylsiloxane film deposited on the internal surface of a cell. The atoms are trapped with an effective loading time of about 65 ms at a loading rate greater than 2×10^8
atoms per second. This rate is larger than the values reported in literature and is obtained by preserving a long lifetime of the trapped atoms. This lifetime exceeds the filling time by nearly two orders of magnitude. Trap loading by light-induced desorption from siloxane compounds can be very effectively applied to store and trap a large number of atoms in the case of very weak atomic flux or extremely low vapor density. It can be also effectively used for fast production of ultracold atoms.


Volume: 67      Pages from: 053401-1  to: 053401-1

KeyWords: Laser Cooling and Trapping; Light Induced Atomic Desorption; Density of gases; Desorption; Low pass filters; Plastic films, Atomic flux, Magnetooptical devices
DOI: 10.1103/PhysRevA.67.053401

Citations: 77
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