TaCoNa-Photonics 2011

Scattering of Light by a Discrete Cross Made of Silver Nanowires

Denys Natarov¹, Ronan Sauleau², Alexander Nosich^1
1IRE NASU, Kharkiv 61085, Ukraine
²IETR, Universite de Rennes 1, Rennes 35042, France
Abstract: We consider the two-dimensional (2-D) problem of the H-polarized plane wave scattering by a discrete cross made of periodically arranged circular cylindrical wires, using the field expansions in local coordinates and addition theorems for cylindrical functions. Resulting block-type matrix equation is cast to the Fredholm second-kind form that guarantees convergence of numerical solution. The scattering and absorption cross-sections and near-field and far-field patterns are found and the interplay of plasmon and grating-type resonances is studied for the crosses made of nano-size silver wires in the visible-light range of wavelengths.
Presentation type: Poster