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Photon path length distribution in random media from spectral speckle intensity correlations

Rojas, L. ; Bina, M. ; Cerchiari, G. ; Escobedo-Sánchez, M. ; Ferri, F. ; Scheffold, F.

In: The European Physical Journal Special Topics, 2011, vol. 199, no. 1, p. 167-180

Photon path length distribution in random media from spectral speckle intensity correlations

Rojas, L. F. ; Bina, M. ; Cerchiari, G. ; Escobedo-Sánchez, M. A. ; Ferri, F. ; Scheffold, Frank

In: The European Physical Journal - Special Topics, 2011, vol. 199, no. 1, p. 167-180

We show that the spectral speckle intensity correlation (SSIC) technique can be profitably exploited to recover the path length distribution of photons scattered in a random turbid medium. We applied SSIC to the study of Teflon slabs of different thicknesses and were able to recover, via the use of the photon diffusion approximation theory, the characteristic transport mean free path ℓ∗...