Enhanced directional optical transmission

Abstract

The system presented here enables transmission of almost all the light intensities injected in four input channels into one output channel. It is conceived in the form of a metallic wire with one central hole and four other holes parallel to the central one. The incident light is injected in the four external holes and transmitted to the central one, thanks to appropriate resonant mechanisms between the central hole and each of the four other holes. Each of these mechanisms is constituted by two coupled cavities. © 2008 American Institute of Physics.