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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Diffusing-wave spectroscopy of cold atoms in ballistic motion

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Eloy, Aurelien [1] ; Yao, Zhibin [1] ; Bachelard, Romain [2] ; Guerin, William [1] ; Fouche, Mathilde [1] ; Kaiser, Robin [1]
Total Authors: 6
[1] Univ Cote Azur, CNRS, INPHYNI, Nice - France
[2] Univ Fed Sao Carlos, Dept Fis, Rod Washington Luis, Km 235-SP-310, BR-13565905 Sao Carlos, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Physical Review A; v. 97, n. 1 JAN 5 2018.
Web of Science Citations: 7

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. (AU)

FAPESP's process: 14/01491-0 - Atomic clouds under stress
Grantee:Romain Pierre Marcel Bachelard
Support type: Research Grants - Young Investigators Grants
FAPESP's process: 15/50422-4 - 123: dimensionality and cooperativity
Grantee:Philippe Wilhelm Courteille
Support type: Regular Research Grants