Semi-Classical Models of Quantum Nanoplasmonics Based on the Discrete Source Method (Review)статья
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Дата последнего поиска статьи во внешних источниках: 17 июня 2021 г.
Аннотация:Works concerning the quantum effect of nonlocal shielding on field characteristics in the problem of scattering a plane wave by nanoscale structures, including ones located near a transparent substrate, are reviewed. Efficient computer models for analyzing such structures are constructed byapplying the discrete source method. The nonlocality effect is studied using the generalized nonlocal optical response model. The field characteristics of nonspherical layered nanoparticles lying in an active medium or on the surface of a transparent substrate are considered. It is shown that nonlocality has a large effect on the optical characteristics in the far- and near-field regions. It is established that the nonlocality effect leads to a decrease in the intensity of surface plasmon resonance by up to2.5 times under a small shift toward short wavelengths. In the presence of a substrate, the excitation of particles by a propagating or an evanescent wave is considered. It is shown that the largest effect is exhibited for nonspherical layered particles located in the evanescent wave region.