Open AccessLiquid phantom for investigating light propagation through layered diffusive media
Author(s) -
Samuele Del Bianco,
Fabrizio Martelli,
Fabio Cignini,
Giovanni Zaccanti,
Antonio Pifferi,
Alessandro Torricelli,
Andrea Bassi,
Paola Taroni,
Rinaldo Cubeddu
Publication year - 2004
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.12.002102
Subject(s) - optics , materials science , imaging phantom , photon diffusion , light scattering , scattering , refractive index , attenuation coefficient , suspension (topology) , layer (electronics) , physics , nanotechnology , mathematics , homotopy , pure mathematics
A liquid phantom for investigating light propagation through layered diffusive media is described. The diffusive medium is an aqueous suspension of calibrated scatterers and absorbers. A thin membrane separates layers with different optical properties. Experiments showed that a material with scattering properties should be used for the membrane to avoid the perturbation due to the guided propagation that occurs through a transparent layer. Examples of measurements on a three-layered medium are reported both in the cw and in the time domain.