Method to measure the optical properties of small volumes of diffusive media.
The method consists of measuring the perturbation provoked by a small volume of the diffusive medium on light propagating through a medium of known optical properties. The absorption and the reduced scattering coefficients of the medium are retrieved from multidistance continuous-wave measurements of transmittance. The inversion procedure is based on the solution of the diffusion equation obtained with a perturbative approach. The method has been validated with Monte Carlo results. Examples of experimental results are reported.
Zaccanti
Giovanni
G
Dipartimento di Fisica dell'Universté degli Studi di Firenze and the Istituto Nazionale per la Fisica della Materia, Via G. Sansone 1, 50019 Sesto Fiorentino, Firenze, Italy.
Martelli
Fabrizio
F
Del Bianco
Samuele
S
D004058:Diffusion; D008962:Models, Theoretical; D055095:Optics and Photonics