We review some recent results on cooperative light scattering by clouds of cold two-level atoms driven by a resonant laser beam. In the linear regime, the atomic local response is described by an integro-differential fluid equation which accounts for the absorption and spontaneous emission processes. Cooperativity manifests itself as the re-emitted radiation creates correlations between atoms. The scattering pattern and the radiation pressure force acting on the cloud have been calculated at different levels of approximation, since they may easily be measured in experiments with cold and ultra-cold atoms.
Cooperative light scattering by a cold atomic fluid / N. Piovella, R. Bachelard (AIP CONFERENCE PROCEEDINGS). - In: International topical conference on plasma science: Strongly Coupled Ultra-Cold and Quantum Plasmas / [a cura di] P.K. Shukla, J.T. Mendonca, B. Eliasson, D. Resendes. - [s.l] : AIP, 2011. - ISBN 9780735409996. - pp. 73-79 (( convegno International Topical Conference on Plasma Science - Strongly Coupled Ultra-Cold and Quantum Plasmas (ITCPS) tenutosi a Lisbon nel 2011.
Cooperative light scattering by a cold atomic fluid
N. Piovella;
2011
Abstract
We review some recent results on cooperative light scattering by clouds of cold two-level atoms driven by a resonant laser beam. In the linear regime, the atomic local response is described by an integro-differential fluid equation which accounts for the absorption and spontaneous emission processes. Cooperativity manifests itself as the re-emitted radiation creates correlations between atoms. The scattering pattern and the radiation pressure force acting on the cloud have been calculated at different levels of approximation, since they may easily be measured in experiments with cold and ultra-cold atoms.Pubblicazioni consigliate
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