In this contribution, we describe a simple and powerful analytical approach to homogenize all-dielectric metasurfaces. The proposed model is based on a combination of the Mie scattering theory of the individual scatterer with a bi-dimensional homogenization approach accounting for the interaction between the electric and magnetic dipoles excited by the external field. Through full-wave simulations, we show that the proposed approach is able to effectively characterize the electromagnetic response of an array of Mie resonators, even for small inter-element separation distances. Several applications of analytically-designed all-dielectric metasurfaces at optical and microwave frequencies are also discussed.
Mont, A., Alu, A., Toscano, A., Bilotti, F. (2019). Homogenization of all-dielectric metasurfaces: Theory and applications. In 2019 13th International Congress on Artificial Materials for Novel Wave Phenomena, Metamaterials 2019 (pp.X257-X259). Institute of Electrical and Electronics Engineers Inc. [10.1109/MetaMaterials.2019.8900909].
Homogenization of all-dielectric metasurfaces: Theory and applications
Mont A.;Alu A.;Toscano A.;Bilotti F.
2019-01-01
Abstract
In this contribution, we describe a simple and powerful analytical approach to homogenize all-dielectric metasurfaces. The proposed model is based on a combination of the Mie scattering theory of the individual scatterer with a bi-dimensional homogenization approach accounting for the interaction between the electric and magnetic dipoles excited by the external field. Through full-wave simulations, we show that the proposed approach is able to effectively characterize the electromagnetic response of an array of Mie resonators, even for small inter-element separation distances. Several applications of analytically-designed all-dielectric metasurfaces at optical and microwave frequencies are also discussed.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
