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Extinction coefficient in absorbing media: a theoretical and numerical study

DOI: 10.1615/ICHMT.2007.ConfElectromagLigScat.110
pages 33-36

Stephane Durant
Laboratoire d'Energétique Moléculaire et Macroscopique, Combustion; Ecole Centrale Paris, Centre National de la Recherche Scientifique, 92295 Châtenay-Malabry Cedex, France

Jean-Jacques Greffet
Laboratoire d'Energétique Moléculaire et Macroscopique, Combustion, CNRS UPR 288, Ecole Centrale Paris, Grande Voie des Vignes, F-92295 Châtenay-Malabry cedex, France

Olivier Calvo-Perez
Direction Général Technique; Dassault Aviation; 78 Quai Marcel Dassault St Cloud 92214, France

Nicolas Vukadinovic
Direction Général Technique; Dassault Aviation; 78 Quai Marcel Dassault St Cloud 92214, France


We report a theoretical and numerical investigation of the light scattering in an absorbing medium with randomly distributed scatterers. The extinction coefficient is derived from the imaginary part of the effective index derived using a diagrammatic approach. The accuracy of the result is assessed by comparison with a numerical solution of Maxwell's equations that fully accounts for multiple scattering.

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