RETRACTED ARTICLE: Propagation of electromagnetic waves in the Pendry lens

Abstract

The propagation of a monochromatic electromagnetic wave in a periodic stratified medium, the refractive index of which has a stepped profile, is investigated. A method for solving Maxwell equations for a piecewise-homogeneous medium is proposed, via which an analytical solution of the wave equation in a closed form has been obtained. Using the obtained solution, the propagation of an electromagnetic wave in a superlens (Pendry superlens) implemented employing a metal plate of nanosized thickness has been studied. It is proved via calculations that, using a superlens, one can achieve an angular resolution exceeding the diffraction limit. A phenomenon of negative refraction is also shown to take place in such a lens.