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Measurement of Scattering Nonlinearities from a Single Plasmonic Nanoparticle
Published on: January 3, 2016
Reflection Measurement of the Scattering Mean Free Path at the Onset of Multiple Scattering
Antton Goïcoechea1, Cécile Brütt2, Arthur Le Ber1
1<a href="https://ror.org/00kr24y60">Institut Langevin</a>, ESPCI Paris, PSL University, CNRS, 75005 Paris, France.
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 ℓ_{s} that provides crucial information on the medium microarchitecture. 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 Letter opens important perspectives for quantitative imaging of heterogeneous media with waves, whether it be for nondestructive testing, biomedical, or geophysical applications.
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