Hanle effect in coherent backscattering

Abstract

We study the shape of the coherent backscattering (CBS) cone obtained when resonant light illuminates a thick cloud of laser-cooled rubidium atoms in presence of a homogenous magnetic field. We observe new magnetic field-dependent anisotropies in the CBS signal. We show that the observed behavior is due to the modification of the atomic radiation pattern by the magnetic field (Hanle effect in the excited state).

4 pages, 3 figures

References in corpus (2)

• Large Faraday rotation of resonant light in a cold atomic cloud
• Weak localization of light by cold atoms: the impact of quantum internal structure

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