Photon delocalization transition in dimensional crossover in layered media

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...

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Bibliographic Details
Published in:arXiv.org 2009-04
Main Authors: Zhang, Sheng, Park, Jongchul, Milner, Valery, Genack, Azriel Z
Format: Article
Language:English
Subjects:
Coherence length
Crossovers
Diffusion layers
Nonuniformity
Thickness
Online Access:Get full text
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Summary: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.
ISSN:2331-8422
DOI:10.48550/arxiv.0904.1905