Fabrication and characterization of a solid polyurethane phantom for optical imaging through scattering media.
A phantom based on a polyurethane system that replicates the optical properties of tissue for use in near-infrared imaging is described. The absorption properties of tissue are simulated by a dye that absorbs in the near infrared, and the scattering properties are simulated by TiO2 particles. The scattering and absorption coefficients of the plastic were measured with a new technique based on time-resolved transmission through two slabs of materials that have different thicknesses. An image of a representative phantom was obtained from time-gated transmission.
Vernon
M L
ML
National Optics Institute, 369 Franquet, Sainte-Foy, Quebec G1P 4N8, Canada. vernon@ino.qc.ca
Freàchette
J
J
Painchaud
Y
Y
Caron
S
S
Beaudry
P
P