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Crossover from renormalized to conventional diffusion near the three-dimensional Anderson localization transition for light

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2022

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Cobus, Laura A.
Aubry, Alexandre

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https://doi.org/10.1103/PhysRevB.106.014208
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Physical Review B. American Physical Society (APS). 2022, 106(1), 014208. ISSN 0163-1829. eISSN 1095-3795. Available under: doi: 10.1103/PhysRevB.106.014208

Zusammenfassung

We report on anomalous light transport in the strong scattering regime. Using low-coherence interferometry, we measure the reflection matrix of titanium dioxide powders, revealing crucial features of strong optical scattering which cannot be observed with transmission measurements: (i) a subdiffusive regime of transport at early times of flight that is a direct consequence of predominant recurrent scattering loops and (ii) a crossover to a conventional, but extremely slow, diffusive regime at long times. These observations support previous predictions that near-field coupling between scatterers prohibits Anderson localization of light in three-dimensional disordered media.

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ISO 690COBUS, Laura A., Georg MARET, Alexandre AUBRY, 2022. Crossover from renormalized to conventional diffusion near the three-dimensional Anderson localization transition for light. In: Physical Review B. American Physical Society (APS). 2022, 106(1), 014208. ISSN 0163-1829. eISSN 1095-3795. Available under: doi: 10.1103/PhysRevB.106.014208
BibTex
@article{Cobus2022Cross-58302,
  year={2022},
  doi={10.1103/PhysRevB.106.014208},
  title={Crossover from renormalized to conventional diffusion near the three-dimensional Anderson localization transition for light},
  number={1},
  volume={106},
  issn={0163-1829},
  journal={Physical Review B},
  author={Cobus, Laura A. and Maret, Georg and Aubry, Alexandre},
  note={Article Number: 014208}
}
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