title: Optical properties of high-density dispersions of particles: application to intralipid solutions.
abstract: 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%.
authors.affiliation: 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.
authors.forename: Arianna
authors.initials: A
authors.lastname: Giusto
authors.forename: Rosalba
authors.initials: R
authors.lastname: Saija
authors.forename: Maria Antonia
authors.initials: MA
authors.lastname: Iatì
authors.forename: Paolo
authors.initials: P
authors.lastname: Denti
authors.forename: Ferdinando
authors.initials: F
authors.lastname: Borghese
authors.forename: Orazio I
authors.initials: OI
authors.lastname: Sindoni