Photon delocalization transition in dimensional crossover in layered media

Sheng Zhang , Jongchul Park , Valery Milner , Azriel Z. Genack

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classification ❄️ cond-mat.mes-hall cond-mat.dis-nn

keywords crossoverlayeredmediawavecoherencedelocalizationdiffusiondimensional

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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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Photon delocalization transition in dimensional crossover in layered media

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