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arXiv · 1310.6419

Transport in quenched disorder: light diffusion in strongly heterogeneous turbid media

Tomas Svensson·Kevin Vynck·Erik Adolfsson·Andrea Farina·Antonio Pifferi·Diederik S. Wiersma
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Abstract

We present a theoretical and experimental study of light transport in disordered media with strongly heterogeneous distribution of scatterers formed via non-scattering 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.

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Tomas Svensson, Kevin Vynck, Erik Adolfsson, Andrea Farina, Antonio Pifferi, Diederik S. Wiersma. 2013-10-23. Transport in quenched disorder: light diffusion in strongly heterogeneous turbid media. https://doi.org/10.1103/physreve.89.022141

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