Tailoring the local density of states of non-radiative field at the surface of nanolayered materials

Abstract

The ability to artificially grow in a controllable manner at nanoscale, from modern deposition techniques, complex structural configurations made with metallic, polar and semiconductors materials raises today the issue of the "best" achievable inner structure to tailor the near-field properties of a nanostructured medium. In the present work we make a step towards the rational design of these materials by reporting numerical experimentations demonstrating the possibility of identifying structural configurations of layered metallodielectric media specifically designed to control the electromagnetic density of states in the close vicinity of their surface. These results could find broad applications in near-field technologies.Comment: to appear in Appl. Phys. Let