Risonanze ottiche di sfere metalliche contenenti un'inclusione dielettrica eccentrica

Abstract

The optical resonances of metal spheres containing an eccentric dielectric inclusion are studied in order to justify the differences between the extinction spectra of such objects and those of spheres with a concentric inclusion. The results of our calculations are interpreted through the analogy between the radial Schrödinger equation for atoms and the radial part of the Helmholtz equation for a spherical scatterer