Experimental verification of plasmonic cloaking at microwave frequencies with metamaterials

Phys Rev Lett. 2009 Oct 9;103(15):153901. doi: 10.1103/PhysRevLett.103.153901. Epub 2009 Oct 6.

Abstract

Plasmonic cloaking is a scattering-cancellation technique based on the local negative polarizability of metamaterials. Here we report its first experimental realization and measurement at microwave frequencies. An array of metallic fins embedded in a high-permittivity fluid has been used to create a metamaterial plasmonic shell capable of cloaking a dielectric cylinder, yielding over 75% reduction of total scattering width.