Sisyphus cooling plays an important role in many cold atom applications including the formation of BoseEinstein condensates and collimation of atomic beams. Here we present a method for measuring the localization of atoms by monitoring the polarization of fluorescence, providing a quantitative two-dimensional image of the cooling process. We outline the concept and provide theoretical models for the optical pumping, cooling, and channeling mechanisms, and present experimental data revealing the development of strong fluorescence polarization in an atomic beam during transverse (lin ¿ lin) cooling.
|Number of pages||11|
|Journal||Physical Review A : Atomic, Molecular and Optical Physics|
|Publication status||Published - 2015|