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Proceedings Paper

Phase coherence in multiple scattering: weak and intense monochromatic light wave propagating in a cold strontium cloud
Author(s): David Wilkowski; Yannick Bidel; Thierry Chaneliere; Robin Kaiser; Bruce Klappauf; Christian Miniatura
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Paper Abstract

For large bulk disordered media, light transport is generally successfully described by a diffusion process. This picture assumes that any interference is washed out under configuration average. However, it is now known that, under certain circumstances, some interference effects survive the disorder average and in turn lead to wave localizations effects. In this paper, we investigate coherence of a monochromatic laser light propagating in an optically thick sample of laser-cooled strontium atoms. For this purpose, we use the coherent backscattering effect as an interferometric tool. At low laser probe beam intensities, phase coherence is fully preserved and the interference contrast is maximal. At higher intensities, saturation effects start to set in and the interference contrast is reduced.

Paper Details

Date Published: 4 August 2005
PDF: 13 pages
Proc. SPIE 5866, The Nature of Light: What Is a Photon?, (4 August 2005); doi: 10.1117/12.621377
Show Author Affiliations
David Wilkowski, Institut Non Lineaire de Nice, CNRS (France)
Yannick Bidel, Institut Non Lineaire de Nice, CNRS (France)
Thierry Chaneliere, Institut Non Lineaire de Nice, CNRS (France)
Robin Kaiser, Institut Non Lineaire de Nice, CNRS (France)
Bruce Klappauf, Institut Non Lineaire de Nice, CNRS (France)
Christian Miniatura, Institut Non Lineaire de Nice, CNRS (France)


Published in SPIE Proceedings Vol. 5866:
The Nature of Light: What Is a Photon?
Chandrasekhar Roychoudhuri; Katherine Creath, Editor(s)

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