Article,

Analysis of a Vapor-Cell Magneto-Optical Trap for Sodium Atoms Based on a Two-Level Doppler Theory

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BRAZILIAN JOURNAL OF PHYSICS, 27 (2): 80-88 (1997)

Abstract

We present an experimental study to characterize a sodium vapor-cell magneto-optical trap (VCMOT) in terms of the number and density of trapped atoms, loading rate and loading time. We have investigated how these quantities change with the vapor temperature, magnetic-field gradient and laser intensity. The results obtained are explained with a simple model that employs the Doppler theory. Good agreement is obtained for most of the experimental data. Investigations on the size of the cloud as a function of the trap external parameters are also carried out. The information MOT in order to obtain the maximum presented here is useful in optimizing the number and density of trapped atoms, normally required for experiments of atomic collisions and Bose-Einstein condensation.

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