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Telecommunications and Radio Engineering
DOI: 10.1615/TelecomRadEng.v51.i2-3.150
pages 160-169
Resonant Absorption of Electromagnetic Radiation in Matrix Disperse Systems with Metallic Inclusions
L. G. Grechko
Institute of Surface Chemistry, NAS of Ukraine, Pr. Nauki 31, Kyiv
A. Ya. Blank
O. A. Panchenko
A. A. Pinchuk
RESUMO
The absorption of electromagnetic radiation in low density system of fine metallic particles embedded in dielectric matrix is considered with account of influence of dipole-dipole interaction between particles. It is shown that under account of pair interaction between particles near proper plasma surface mode of a single particle two new neighboring resonant modes appear, their excitation creating the region of continuous spectrum. In a result, the mechanism of collisionless damping occurs leading to widening and doubling of the resonance peaks in absorption. The dependence of absorption on the average distance between particles and on collision frequency is examined.
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