Due to their low losses and exotic response at optical frequencies, high-index dielectric nanoparticles are a promising candidate for many relevant nanophotonics applications. In this contribution, we investigate the use of arrays of dielectric nanoparticles for tailoring optical reflections. Two different categories of devices are considered: (i) ultra-thin all-reflection coatings and (ii) highly-efficient non-gradient anomalous reflectors. Through both theoretical arguments and full-wave simulations, it is proven that dielectric nanoparticles allow achieving high performances in both the scenarios enabling, thus, new degrees of freedom in the manipulation of optical reflections.
Monti, A., Alu, A., Toscano, A., Bilotti, F. (2018). Tailoring optical reflections through lattices of high-index dielectric nanoparticles. In 2018 12th International Congress on Artificial Materials for Novel Wave Phenomena, METAMATERIALS 2018 (pp.284-286). Institute of Electrical and Electronics Engineers Inc. [10.1109/MetaMaterials.2018.8534080].
Tailoring optical reflections through lattices of high-index dielectric nanoparticles
Monti A.
Writing – Original Draft Preparation
;Alu A.Membro del Collaboration Group
;Toscano A.Supervision
;Bilotti F.Supervision
2018-01-01
Abstract
Due to their low losses and exotic response at optical frequencies, high-index dielectric nanoparticles are a promising candidate for many relevant nanophotonics applications. In this contribution, we investigate the use of arrays of dielectric nanoparticles for tailoring optical reflections. Two different categories of devices are considered: (i) ultra-thin all-reflection coatings and (ii) highly-efficient non-gradient anomalous reflectors. Through both theoretical arguments and full-wave simulations, it is proven that dielectric nanoparticles allow achieving high performances in both the scenarios enabling, thus, new degrees of freedom in the manipulation of optical reflections.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.