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arXiv · 2401.02246

Reflection Measurement of the Scattering Mean Free Path at the Onset of Multiple Scattering

Antton Goïcoechea·Cécile Brütt·Arthur Le Ber·Flavien Bureau·William Lambert·Claire Prada·Arnaud Derode·Alexandre Aubry
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Abstract

Multiple scattering of waves presents challenges for imaging complex media but offers potential for their characterization. Its onset is actually governed by the scattering mean free path $\ell_s$ that provides crucial information on the medium micro-architecture. Here, we introduce a reflection matrix method designed to estimate this parameter from the time decay of the single scattering rate. Our method is first validated by an ultrasound experiment on a tissue-mimicking phantom before being applied in-vivo to a human liver. This study opens important perspectives for quantitative imaging of heterogeneous media with waves, whether it be for non-destructive testing, biomedical or geophysical applications.

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Antton Goïcoechea, Cécile Brütt, Arthur Le Ber, Flavien Bureau, William Lambert, Claire Prada, Arnaud Derode, Alexandre Aubry. 2024-01-04. Reflection Measurement of the Scattering Mean Free Path at the Onset of Multiple Scattering. https://doi.org/10.1103/physrevlett.133.176301

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