Enhanced Raman sideband cooling of caesium atoms in a vapour-loaded magneto-optical trapTools Li, Y. and Wu, J. and Feng, G. and Nute, J. and Piano, Samanta and Hackermüller, L. and Ma, J. and Xiao, L. and Jia, S. (2015) Enhanced Raman sideband cooling of caesium atoms in a vapour-loaded magneto-optical trap. Laser Physics Letters, 12 (5). 055501/1-055501/5. ISSN 1612-202X Full text not available from this repository.AbstractWe report enhanced three-dimensional degenerated Raman sideband cooling (3D DRSC) of caesium (Cs) atoms in a standard single-cell vapour-loaded magneto-optical trap. Our improved scheme involves using a separate repumping laser and optimized lattice detuning. We load 1.5 × 107 atoms into the Raman lattice with a detuning of −15.5 GHz (to the ground F = 3 state). Enhanced 3D DRSC is used to cool them from 60 µK to 1.7 µK within 12 ms and the number of obtained atoms is about 1.2 × 107. A theoretical model is proposed to simulate the measured number of trapped atoms. The result shows good agreement with the experimental data. The technique paves the way for loading a large number of ultracold Cs atoms into a crossed dipole trap and efficient evaporative cooling in a single-cell system.
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