Optical properties of high-density dispersions of particles: application to intralipid solutions |
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Authors: | Giusto Arianna Saija Rosalba Iatì Maria Antonia Denti Paolo Borghese Ferdinando Sindoni Orazio I |
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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. |
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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%. |
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