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arXiv · 0911.5656

Fast production of ultracold sodium gases using light--induced desorption and optical trapping

Emmanuel Mimoun·Luigi De Sarlo·David Jacob·Jean Dalibard·Fabrice Gerbier
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Abstract

In this paper, we report on the production of a Bose--Einstein condensate (BEC) of sodium using light--induced desorption as an atomic source. We load about 2X10^7 atoms in a MOT from this source with a ~6 s loading time constant. The MOT lifetime can be kept around 27 s by turning off the desorbing light after loading. We show that the pressure drops down by a factor of 40 in less than 100 ms after the extinction of the desorbing light, restoring the low background pressure for evaporation. Using this technique, a \na BEC with 10^4 atoms is produced after a 6 s evaporation in an optical dipole trap.

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Emmanuel Mimoun, Luigi De Sarlo, David Jacob, Jean Dalibard, Fabrice Gerbier. 2010-01-21. Fast production of ultracold sodium gases using light--induced desorption and optical trapping. https://doi.org/10.1103/physreva.81.023631

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