1975
DOI: 10.1051/jphys:0197500360110107900
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Lumière diffusée par une assemblée de sphères conductrices à basse densité

Abstract: Dès 1937, Yvon [1] présente un calcul de la dépolarisation de la lumière diffusée par un fluide monoatomique. Il développe alors un calcul du champ local par une méthode très générale de perturbation, en faisant l'hypothèse simplificatrice d'atomes ponctuels. Pour dépasser cette hypothèse Levine et Mc Quarrie [2] proposent un modèle où les atomes du gaz rare sont représentés par des sphères conductrices et calculent les hyperpolarisabilités d'un couple de sphères, sources de dépolarisation. Nous retrouvons les… Show more

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Cited by 8 publications
(8 citation statements)
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“…A model of two metallic spheres in a constant electric field has been formerly proposed [10,11] that takes into account these multipolar contributions in a classical way, but leads to a very strong dependence of the invariants near contact between the spheres. Although this model emphasizes the finite extension of the electronic charge clouds, its metallic-sphere radius may only be defined as the mean electronic radius of an atom, and the relation between ao and the zero-potential diameter 0 of an isolated noble-gas atom is not verified.…”
Section: Introductionmentioning
confidence: 99%
“…A model of two metallic spheres in a constant electric field has been formerly proposed [10,11] that takes into account these multipolar contributions in a classical way, but leads to a very strong dependence of the invariants near contact between the spheres. Although this model emphasizes the finite extension of the electronic charge clouds, its metallic-sphere radius may only be defined as the mean electronic radius of an atom, and the relation between ao and the zero-potential diameter 0 of an isolated noble-gas atom is not verified.…”
Section: Introductionmentioning
confidence: 99%
“…The latter resides in cross interference between fluctuational changes in the linear multipole polarizabilities and fluctuational changes in the nonlinear multipole polarizabilities of the molecules. In a first approximation, the contributions derived are purely binary in nature and appear to be highly significant compared with the hitherto calculated pure and cross dipole and multipole contributions to integral light scattering [2][3][4][5][6][7].…”
mentioning
confidence: 99%
“…In a first approximation, the long-range field-induced change, related with the linear multipolar polarizabilities, is [1,3,6,14] :…”
mentioning
confidence: 99%
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