All-dielectric photonic metamaterials operating beyond the homogenization regime

Khanh Van Do; Xavier Le Roux; Charles Caer; Delphine Morini; Laurent Vivien; Eric Cassan

META 2021, META'12

Khanh Van Do, Xavier Le Roux, Charles Caer, Delphine Morini, Laurent Vivien, Eric Cassan

Last modified: 2012-01-03

Abstract

Photonic metamaterials made of graded photonic crystals operating near the bandgap region are proposed for light manipulation around l=1.5µm. Proof-of-concept structures have been studied using Hamiltonian optics and FDTD simulation, fabricated, and characterized using far-field optical measurements. Experimental results are in good agreement with predictions, showing the interest of graded photonic crystals as an (ultra-low loss) alternative solution to the use of metamaterials combining dielectric and metallic materials with sub-wavelength unit cells.

Keywords

Photonic crystals, Hamiltonian optics, Metamaterials