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∗ and absorption length sa of the medium. These results were compared and validated by means of complementary measurements performed on the same sam- ples with standard pulsed laser time of flight techniques.
|Titolo:||Photon path length distribution in random media from spectral speckle intensity correlations|
BINA, MATTEO (Secondo)
|Parole Chiave:||turbid medium ; light scattering ; photon diffusion ; transport mean free path|
|Settore Scientifico Disciplinare:||Settore FIS/01 - Fisica Sperimentale|
|Data di pubblicazione:||2011|
|Digital Object Identifier (DOI):||10.1140/epjst/e2011-01512-2|
|Appare nelle tipologie:||01 - Articolo su periodico|