Interference corrections to light scattering and absorption by metal nanoparticles

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Maksimenko, VV
Zagaynov, VA
Krylov, S Yu
Agranovski, IE
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2015
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Abstract

An irreducible four-point vertex composed of the most-crossed diagrams involved in Bethe-Salpeter equation for an averaged two-photon propagator in a system of metal nanoparticles was calculated directly in coordinate representation without the traditional introduction of an EM-energy diffusion coefficient. These diagrams describe the interference of amplitudes corresponding to two possible ways for a photon to pass the closed loop on its trajectory. Localization is interpreted as a bound state generation of two virtual photons passing the loop clockwise and counterclockwise. This bound state is described by a pole of the irreducible vertex. The influence of this interference correction on light scattering and effective absorption by a random system of particles is investigated.

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Progress of Theoretical and Experimental Physics
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© The Author(s) 2015. Published by Oxford University Press on behalf of the Physical Society of Japan. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.
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Condensed matter modelling and density functional theory
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