Modeling and design of optical mantle cloaking devices

In this contribution, we propose a novel approach for the design of scattering cancellation devices operating at optical frequencies and exhibiting enhanced performance compared to the state of the art. The cloaks, consisting of an arrangement of plasmonic nanoparticles, are modeled through a 2D analytical model able to assign an average surface reactance to the nanoparticles array. The availability of a rigorous model allows us demonstrating that the use of nanoparticles with high eccentricity is able to generate a scattering cancellation effect within the entire optical range, strongly relaxing the current requirements on the nanoparticles size. Full-wave simulations confirming the desired cloaking performance of the nanoparticle-based cloaks are provided.