Optical response features of Si-nanoparticle arrays

作者: Andrey B. Evlyukhin , Carsten Reinhardt , Andreas Seidel , Boris S. Luk’yanchuk , Boris N. Chichkov

DOI: 10.1103/PHYSREVB.82.045404

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摘要: Periodic structures of spherical silicon particles are analyzed using the coupled-dipole equations for studying optical response features and local electromagnetic fields. The model takes into account the electric and magnetic dipole moments of the particles embedded in a homogeneous dielectric medium. Particles with radius of 65 nm and larger are considered. It is shown that, due to the large permittivity of silicon, the first two Mie resonances are located in the region of visible light, where the absorption is small and the extinction is basically …

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