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Phys Rev E Stat Nonlin Soft Matter Phys. 2010 Nov;82(5 Pt 2):056603. Epub 2010 Nov 5.

Transverse confinement of waves in three-dimensional random media.

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  • 1Laboratoire de Physique et Modélisation des Milieux Condensés, Université Joseph Fourier, CNRS UMR 5493, BP 166, 25 Rue des Martyrs, Maison des Magistères, 38042 Grenoble Cedex 09, France. nicolas.cherroret@physik.uni-freiburg.de


We study the transmission of a tightly focused beam through a thick slab of three-dimensional disordered medium in the Anderson localized regime. We show that the transverse profile of the transmitted beam exhibits clear signatures of Anderson localization and that its mean square width provides a direct measure of the localization length. For a short incident pulse, the width is independent of absorption.

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