Electrostatic Dipole Polarizability and Plasmon Resonances of Multilayer Nanoshells
Luke. C. Ugwuoke,
Mark. S. Tame
Abstract:We propose a generalized formula for calculating the dipole polarizability of spherical multilayer nanoshells (MNSs) within the long-wavelength approximation (LWA). Given a MNS with a finite number of concentric layers, radii, and dielectric properties, embedded in a dielectric medium, in the presence of a uniform electric field, we show that its frequency-dependent and complex dipole polarizability can be expressed in terms of the dipole polarizability of the preceding MNS. This approach is different from pre… Show more
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