Abstract
The optical properties of spherical metal–oxide nanoparticles were studied in the framework of the Drude theory. Frequency dependences of the real and imaginary parts of the dielectric constant, coherence loss parameter, and absorption coefficient of bilayer Ag, Al, and Cu nanoparticles of radii 10–30 nm in various matrices were calculated. The behavior of the frequency dependences of the imaginary part of the dielectric constant and absorption coefficient at low frequencies was determined by the contribution of electron surface-scattering mechanisms.
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