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Proceedings Article

Phase coherence in multiple scattering: weak and intense monochromatic light wave propagating in a cold strontium cloud

[+] Author Affiliations
David Wilkowski, Yannick Bidel, Thierry Chaneliere, Robin Kaiser, Bruce Klappauf, Christian Miniatura

Institut Non Lineaire de Nice, CNRS (France)

Proc. SPIE 5866, The Nature of Light: What Is a Photon?, 298 (August 04, 2005); doi:10.1117/12.621377
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From Conference Volume 5866

  • The Nature of Light: What Is a Photon?
  • Chandrasekhar Roychoudhuri; Katherine Creath
  • San Diego, California, United States | July 31, 2005

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.

© (2005) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

David Wilkowski ; Yannick Bidel ; Thierry Chaneliere ; Robin Kaiser ; Bruce Klappauf, et al.
"Phase coherence in multiple scattering: weak and intense monochromatic light wave propagating in a cold strontium cloud", Proc. SPIE 5866, The Nature of Light: What Is a Photon?, 298 (August 04, 2005); doi:10.1117/12.621377; http://dx.doi.org/10.1117/12.621377


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