Invisibility and Cloaking Based on Scattering Cancellation

Abstract

Advances in material synthesis and in metamaterial technology offer new venues to tailor the electromagnetic properties of devices, which may go beyond conventional limits in a variety of fields and applications. Invisibility and cloaking are perhaps one of the most thought‐provoking possibilities offered by these new classes of advanced materials. Here, recently proposed solutions for invisibility and cloaking using metamaterials, metasurfaces, graphene and/or plasmonic materials in different spectral ranges are reviewed and highlighted. The focus is primarily on scattering‐cancellation approaches, describing material challenges, venues and opportunities for the plasmonic and the mantle cloaking techniques, applied to various frequency windows and devices. Analogies, potentials and relevant opportunities of these concepts are discussed, their potential realization and the underlying technology required to verify these phenomena are reviewed with an emphasis on the material aspects involved. Finally, these solutions are compared with other popular cloaking techniques.

Suppression of scattering for small dielectric particles: anapole mode and invisibility

“…Other ideas related to multi-shell structures for cloaking have been developed for plasmonic 10 , dielectric 11 and metamaterial coatings together with scattering cancellation and mantle cloaking 12 .…”

On the Minimal Scattering Response of PEC Cylinders in a Dielectric Cloak

“…If one takes into account the polarization of the moments (p * = z p * z , m * = y m * y ), substitutes Green's function (18) and adds the two electric fields (17), (19), the total developed field (E p + E m ) from the moments couple possesses a single z component given by:…”

Switchable invisibility of dielectric resonators

“…The first idea is to archive the scattering cancellation using the properties of the characteristic lineshape of the Fano resonance 15,16 . We can expect an interaction of the Fano-type if a spectrally narrow band virtually any origin interacts with broad spectrum (featureless background) through an interference effect constructively or destructively.…”