4.8 Article

Photon Delocalization Transition in Dimensional Crossover in Layered Media

Journal

PHYSICAL REVIEW LETTERS
Volume 101, Issue 18, Pages -

Publisher

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.101.183901

Keywords

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Funding

  1. National Science Foundation [DMR-0538350]
  2. Department of Chemistry and the Laboratory for Advanced Spectroscopy and Imaging Research
  3. University of British Columbia, Vancouver, BC, V6T 1Z1, Canada.

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We report a crossover in optical propagation in random layered media from localization towards diffusion as the interaction of the wave with the sample is transformed from one to three dimensional due to nonuniformity in the layer thickness. The crossover occurs at the point that the lateral spread of the wave equals the transverse coherence length in the transmitted speckle pattern.

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