Optical extinction in monolayer arrays of non-resonant nanorods

Petru Ghenuche; Gregory Vincent; Marine Laroche; Nathalie Bardou; Riad HaÃ¯dar; Jean-Luc Pelouard; Stephane Collin

META 2021, META'12

Petru Ghenuche, Gregory Vincent, Marine Laroche, Nathalie Bardou, Riad HaÃ¯dar, Jean-Luc Pelouard, Stephane Collin

Last modified: 2011-12-15

Abstract

We provide the first experimental evidence of sharp, resonant extinction in freestanding arrays of non-resonant nanorods. Nearly perfect optical extinction and strong absorption enhancement is shown for transparent and absorbing material, respectively. The results can be fully explained by a coherent multiple scattering model in periodic arrays of subwavelength nanorods.

Keywords

nanophotonics; geometrical resonances; dielectric grating; freestanding membranes