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Electrodynamics of a Spatially Dispersive Medium with Spherical Cavity
Author(s) -
Kryuchenko Yu. V.,
Sugakov V. I.
Publication year - 1982
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221110119
Subject(s) - scattering , physics , inclusion (mineral) , dissipative system , mie scattering , spheres , dispersion (optics) , light scattering by particles , bound state , transformation (genetics) , electromagnetic radiation , computational physics , exciton , classical mechanics , quantum electrodynamics , light scattering , optics , quantum mechanics , chemistry , biochemistry , gene , thermodynamics , astronomy
The exact solution of the problem of electromagnetic wave scattering by a spherical inclusion in a spatially dispersive medium is obtained. In comparison with well‐known results of the Mie theory of a medium without spatial dispersion the main new features are: (i) the frequency dependence of the scattering cross‐section is changed; (ii) the transformation of normal waves from one type into another takes place at the inclusion; (iii) the states bound to the spherical inclusion have finite lifetimes even in the absence of usual dissipative mechanisms. For some physical systems (excitons in CdS) the numerical calculations of scattering cross‐sections are performed. The frequencies and lifetimes of states bound to the spherical inclusion are also determined.