Kuhn, Carlos C. N.
Lossless polarization gradient cooling of 4 × 107 87Rb atoms in a far-detuned 2D optical lattice is demonstrated. Temperatures down to 1μK and phase space densities as high as 1/1000 are achieved in a total duty cycle of 215 ms. It is shown that utilizing the vector component of the optical lattice allows lower temperatures to be achieved when compared with pure scalar lattices.
Journal of Modern Optics, Vol. 65, no. 10 (2018), pp. 1226-1234
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