Temperature and spatial diffusion of atoms cooled in a 3D lin$\perp$lin bright optical lattice

Abstract

We present a detailed experimental study of a three-dimensional lin$\perp$lin bright optical lattice. Measurements of the atomic temperature and spatial diffusion coefficients are reported for different angles between the lattice beams, i.e. for different lattice constants. The experimental findings are interpretated with the help of numerical simulations. In particular we show, both experimentally and theoretically, that the temperature is independent of the lattice constant.

accepted for publication in Eur. Phys. J. D