| Full text | |
| Author(s): |
Eloy, Aurelien
;
Yao, Zhibin
;
Bachelard, Romain
;
Guerin, William
;
Fouche, Mathilde
;
Kaiser, Robin
Total Authors: 6
|
| Document type: | Journal article |
| Source: | PHYSICAL REVIEW A; v. 97, n. 1, p. 7-pg., 2018-01-05. |
| 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. (AU) | |
| FAPESP's process: | 15/50422-4 - 123: dimensionality and cooperativity |
| Grantee: | Philippe Wilhelm Courteille |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 14/01491-0 - Atomic clouds under stress |
| Grantee: | Romain Pierre Marcel Bachelard |
| Support Opportunities: | Research Grants - Young Investigators Grants |