Optical properties of high-density dispersions of particles: application to intralipid solutions.
We propose to study the scattering properties of dense distributions of spherical scatterers by resorting to an iterative solution of the Foldy-Twersky equation for the propagation of the coherent field. As a result of the first step of the iterative procedure, the host medium is substituted by an effective medium of complex refractive index to account for the multiple-scattering processes that occur among the particles. Although we truncate the above-mentioned iterative procedure to the second step, the results of our calculations are in excellent agreement with previous experimental results of Zaccanti et al. ("Measurement of optical properties of high-density media," to be published in Applied Optics) for the scattering coefficient of Intralipid solutions up to a volume density of 15% and show a limited disagreement at a volume density of 22%.
Giusto
Arianna
A
Università di Messina, Dipartimento di Fisica della Materia e Tecnologie Fisiche Avanzate and the Istituto Nazionale per la Fisica della Materia, Unità di Messina, Salita Sperone 31, Messina 98166, Italy.
Saija
Rosalba
R
Iatì
Maria Antonia
MA
Denti
Paolo
P
Borghese
Ferdinando
F
Sindoni
Orazio I
OI