55 citations · 179 across the 11 of their papers we have counts for
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Diode-like asymmetric transmission in ultrathin hyperbolic epsilon-near-zero slabs: extreme anisotropy mimicking chirality
Carlo Rizza, Xin Li, Andrea Di Falco +3
We demonstrate that a strong asymmetric transmission for forward and backward propagation of tilted circular polarized optical waves is supported by ultrathin epsilon-near-zero hyp…
Reconfigurable photoinduced metamaterials in the microwave regime
Carlo Rizza, Alessandro Ciattoni, Francesco De Paulis +4
We investigate optically reconfigurable dielectric metamaterials at gigahertz frequencies. More precisely, we study the microwave response of a subwavelength grating optically impr…
Tunable electromagnetic chirality induced by graphene inclusions in multi-layered metamaterials
Carlo Rizza, Elia Palange, Alessandro Ciattoni
We theoretically investigate the electromagnetic response of a novel class of multi-layered metamaterials obtained by alternating graphene sheets and dielectric layers, the whole s…
All-optical active plasmonic devices with memory and power switching functionalities based on epsilon-near-zero nonlinear metamaterials
Alessandro Ciattoni, Carlo Rizza, Elia Palange
All-optical active plasmonic devices are of fundamental importance for designing efficient nanophotonic circuits. We theoretically propose and numerically investigate an active pla…
Two-peaked and flat-top perfect bright solitons in epsilon-near-zero nonlinear metamaterials: novel Kerr self-trapping mechanisms
Alessandro Ciattoni, Carlo Rizza, Elia Palange
We analytically investigate transverse magnetic (TM) spatial bright solitons, as exact solutions of Maxwell's equations, propagating through nonlinear metamaterials whose linear di…
Multistability at arbitrary low optical intensities in a metallo-dielectric layered structure
Alessandro Ciattoni, Carlo Rizza, Elia Palange
We show that a nonlinear metallo-dielectric layered slab of subwavelength thickness and very small average dielectric permittivity displays optical multistable behavior at arbitrar…