Spontaneous light scattering from propagating density fluctuations in an optical lattice
C. Jurczak - J.-Y. Courtois - B. Desruelle - C.I. Westbrook - A. Aspect
Institut d'Optique, BP 147, 91403 Orsay cedex, France
Received: 30 January 1997 / Accepted: 9 October 1997
Abstract
We report the observation of resonances in the intensity correlation spectra
of a 3D rubidium optical lattice, which we attribute to light scattering
from propagating atomic density fluctuations in the lattice. This process is
the spontaneous analog of the stimulated scattering mechanism recently
described by Courtois et al.. We investigate the
dependence of the new resonances on the lattice angle and show that they
disappear for large angles, thus resolving previous discrepancies on the
subject.
PACS
32.80.Lg Mechanical effects of light on atoms, molecules, and ions
- 32.80.Pj Optical cooling of atoms; trapping
- 33.50.Dq Fluorescence and phosphorescence spectra
Author for correspondance: jurczak@physique.ens.fr
Copyright EDP Sciences, Springer-Verlag
