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

David Wilkowski; Yannick Bidel; Thierry Chaneliere; Robin Kaiser; Bruce Klappauf; Christian Miniatura

doi:10.1117/12.621377

4 August 2005 Phase coherence in multiple scattering: weak and intense monochromatic light wave propagating in a cold strontium cloud

David Wilkowski, Yannick Bidel, Thierry Chaneliere, Robin Kaiser, Bruce Klappauf, Christian Miniatura

Author Affiliations +

Proceedings Volume 5866, The Nature of Light: What Is a Photon?; (2005) https://doi.org/10.1117/12.621377
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

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.

Citation Download Citation

David Wilkowski, Yannick Bidel, Thierry Chaneliere, Robin Kaiser, Bruce Klappauf, and Christian Miniatura "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?, (4 August 2005); https://doi.org/10.1117/12.621377

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