Diffusing-Wave Spectroscopy of Cold Atoms in Ballistic Motion

Abstract : Diffusing-wave spectroscopy is a powerful technique which consists in measuring the temporal correlation function of the intensity of light multiply scattered by a medium. In this paper, we apply this technique to cold atoms under purely ballistic motion and we investigate the transition between the single and the multiple scattering regime. The intensity correlation function changes from a simple Gaussian function, whose width reveals the sample temperature, to a more complex decay shortened by the frequency redistribution in the thick cloud. These features are quantitatively compared to simulations with a phase-coherent and an incoherent model. Both show a very good agreement with the experiments.
Type de document :
Pré-publication, Document de travail
2018
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https://hal.archives-ouvertes.fr/hal-01611345
Contributeur : Mathilde Fouché <>
Soumis le : mercredi 3 janvier 2018 - 10:17:10
Dernière modification le : lundi 4 juin 2018 - 16:34:02
Document(s) archivé(s) le : jeudi 3 mai 2018 - 00:57:46

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  • HAL Id : hal-01611345, version 2
  • ARXIV : 1710.03974

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Aurélien Eloy, Zhibin Yao, Romain Bachelard, William Guerin, Mathilde Fouché, et al.. Diffusing-Wave Spectroscopy of Cold Atoms in Ballistic Motion. 2018. 〈hal-01611345v2〉

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