Sideband cooling of neutral atoms in a far-detuned optical lattice
1998; Institute of Physics; Volume: 42; Issue: 4 Linguagem: Inglês
10.1209/epl/i1998-00261-y
ISSN1286-4854
AutoresHélène Perrin, Axel Kuhn, Isabelle Bouchoule, C. Salomon,
Tópico(s)Quantum optics and atomic interactions
ResumoSideband laser cooling using stimulated Raman transitions is performed on trapped cesium atoms. The confinement is produced by a far–off-resonance dipole trap consisting of two crossed YAG beams which, by interference, create a one-dimensional optical lattice. In a pure intensity lattice, we measure a 1D temperature of T = 6 μK corresponding to a mean quantum vibrational number of about ⟨nv⟩ = 0.75. In a polarization gradient lattice, the final temperature is T = 3.6 μK corresponding to ⟨nv⟩ ≃ 2.4.
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