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In this contribution, we put forward an analytical model for the design of lossless and lossy nanoparticle-based metasurfaces working at a desired frequency in the optical spectrum. To show the versatility of our approach, we exploit it for the design of different innovative devices, such as cloaking-inspired anti-reflection coatings, circuit-analog screens and narrowband optical absorbers that are...
In this contribution, we present a non-conventional core-shell nanoparticle, named supersphere, for implementing optical devices whose performances cannot be easily achieved with conventional nanoparticles. Superspheres are solids with intermediate shape between a sphere and a cube, whose external boundaries are described by Lamè surface equation. Thanks to its particular shape, a core-shell supersphere...
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...
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