Singularity-driven Second and Third Harmonic Generation in a ε-near-zero nanolayer

M. A. Vincenti, D. de Ceglia, A. Ciattoni +1

We show a new path to ε~0 materials without resorting to metal-based metamaterial composites. A medium that can be modeled using Lorentz oscillators usually displays ε=0 crossing p…