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Light diffusion in quenched disorder: Role of step correlations
University of Florence.
University of Florence.
RISE - Research Institutes of Sweden, Swerea, Swerea IVF.ORCID iD: 0000-0003-4860-8763
Istituto di Fotonica e Nanotecnologie (IFN-CNR).
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2014 (English)In: Physical Review E. Statistical, Nonlinear, and Soft Matter Physics, ISSN 1539-3755, E-ISSN 1550-2376, Vol. 89, no 2Article in journal (Refereed) Published
Abstract [en]

We present a theoretical and experimental study of light transport in disordered media with strongly heterogeneous distribution of scatterers formed via nonscattering regions. Step correlations induced by quenched disorder are found to prevent diffusivity from diverging with increasing heterogeneity scale, contrary to expectations from annealed models. Spectral diffusivity is measured for a porous ceramic where nanopores act as scatterers and macropores render their distribution heterogeneous. Results agree well with Monte Carlo simulations and a proposed analytical model. © 2014 American Physical Society.

Place, publisher, year, edition, pages
American Physical Society , 2014. Vol. 89, no 2
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Materials Engineering
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URN: urn:nbn:se:ri:diva-13315DOI: 10.1103/PhysRevE.89.022141Scopus ID: 2-s2.0-84896977869OAI: oai:DiVA.org:ri-13315DiVA: diva2:973521
Available from: 2016-09-22 Created: 2016-09-22 Last updated: 2017-08-09Bibliographically approved

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Publisher's full textScopushttp://journals.aps.org/pre/abstract/10.1103/PhysRevE.89.022141

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