Link between the laws of geometrical optics and the radiative transfer equation in media with a spatially varying refractive index |
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Authors: | Jean-Michel Tualle |
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Institution: | Lab. de Phys. des Lasers (CNRS UMR 7538), Université Paris 13, 99 Avenue J.-B. Clément, 93430 Villetaneuse, France |
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Abstract: | We proposed in a previous paper J.-M. Tualle, E. Tinet, Opt. Commun. 228 (2003) 33] a modified radiative transfer equation to describe radiative transfer in a medium with a spatially varying refractive index. The present paper is devoted to the demonstration that this equation perfectly works in the non-absorbing/non-scattering limit, what was contested by Martí-López and coworkers L. Martí-López, J. Bouza-Domínguez, R.A. Martínez-Celorio, J.C. Hebden, Opt. Commun. 266 (2006) 44]. The assertion that this equation would imply a zero divergence of the rays is also commented. |
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Keywords: | 42 25 Fx 42 68 Ay 95 30 Jx |
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