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Title: Multiple scattering of light in cold atomic clouds in a magnetic field
Authors: Sigwarth, O.
Labeyrie, G.
Delande, D.
Miniatura, C. 
Issue Date: 17-Sep-2013
Source: Sigwarth, O., Labeyrie, G., Delande, D., Miniatura, C. (2013-09-17). Multiple scattering of light in cold atomic clouds in a magnetic field. Physical Review A - Atomic, Molecular, and Optical Physics 88 (3) : -. ScholarBank@NUS Repository.
Abstract: Starting from a microscopic theory for atomic scatterers, we describe the scattering of light by a single atom and study the coherent propagation of light in a cold atomic cloud in the presence of a magnetic field B in the mesoscopic regime. Nonpertubative expressions in B are given for the magneto-optical effects and optical anisotropy. We then consider the multiple-scattering regime and address the fate of the coherent-backscattering (CBS) effect. We show that, for atoms with nonzero spin in their ground state, the CBS interference contrast can be increased compared to its value when B=0, a result at variance with classical samples. We validate our theoretical results by a quantitative comparison with experimental data. © 2013 American Physical Society.
Source Title: Physical Review A - Atomic, Molecular, and Optical Physics
ISSN: 10502947
DOI: 10.1103/PhysRevA.88.033827
Appears in Collections:Staff Publications

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