A study of atom localization in an optical lattice by analysis of the scattered light

Christoph I Westbrook (1) , Christophe Jurczak (1) , Gerhard Birkl (2) , Bruno Desruelle (1) , William D. Phillips (3) , Alain Aspect (1)

1 laboratoire Charles Fabry de l'Institut d'Optique / Optique atomique
2 Institut fuer Angewandte Physik
3 NIST - National Institute of Standards and Technology [Gaithersburg]

We present an experimental study of a four beam optical lattice using the light scattered by the atoms in the lattice. We use both intensity correlations and observations of the transient behavior of the scattering when the lattice is suddenly switched on. We compare results for 3 different configurations of the optical lattice. We create situations in which the Lamb-Dicke effect is negligible and show that, in contrast to what has been stated in some of the literature, the damping rate of the 'coherent' atomic oscillations can be much smaller than the inelastic photon scattering rate.

Mots clés: light scattering; optical lattices; intensity correlations

Domaines: Physique Quantique [quant-ph]

Christoph I Westbrook, Christophe Jurczak, Gerhard Birkl, Bruno Desruelle, William D. Phillips, et al.. A study of atom localization in an optical lattice by analysis of the scattered light. Journal of Modern Optics, 1997, 44 (10), pp.1837-1851. ⟨10.1080/09500349708231850⟩. ⟨hal-00659281⟩