Abstract
We transfer cold 87Rb atoms from a vapour cell chamber to aspatially separated UHV magneto-optical trap (MOT) with the assistanceof a red-detuned optical guiding beam and a normal push beam. Efficientoptical guiding of the cold atoms is observed within a small detuningwindow. A pulsed optical guiding beam enhances the transfer efficiencyand hence allows us to collect more atoms in UHV MOT in a shorter time,which is favourable for our experiment of achieving Bose–Einsteincondensates (BEC). Besides the easy operation, another advantage ofthis optical guiding technique is also demonstrated such that sloweratomic beams may be efficiently transferred along horizontal direction.This study is a direct application of the optical guiding technique asa powerful tool.
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