Simulation des métamatériaux à indice de réfraction négatif

Abstract

Metamaterials are gaining momentum in recent years. The new properties allow to consider the development of new optical components for new applications. The "perfect lens", that is to say, not subject to the diffraction limit, is a typical example of an original component and very promising in terms of applications, based on the use of a metamaterial with negative refractive index. This subject involves the study of metamaterials and their applications in the visible, in particular the simulation of a negative index of refraction. So far, a number of concepts have been established and a number of demonstrations were performed for frequencies ranging from microwave to terahertz field. The extension to the visible spectrum is a major issue that does not confine itself to applying a simple scaling law on the dimensions set in. In fact, the negative index metamaterials consist mainly of metals and their response depends strongly on the electromagnetic frequency because of dispersion and absorption The purpose of this work will address the many challenges of scientific field and in particular to develop simple models to describe how the mesoscopic response of a negative index metamaterial at optical frequencies.