Spatial dispersion in an array of metallic nanorods

Didier Felbacq (1) , Alexandru Cabuz (1) , Brahim Guizal (1)

1 L2C - Laboratoire Charles Coulomb

The homogeneous and transport properties of a set of metallic fibers were studied. The existence of a plasma frequency was deduced and a precise formula for it was derived. A homogenized system for finite length ohmic wires was derived. Some numerical simulations were made to study the influence of disorder. The persistence of a low-frequency band gap was demonstrated numerically even in the case of a strong disorder. The existence of localized modes was explained in terms of the statistical properties of the medium.

Mots clés: metamaterials; homogenization; spatial dispersion; Dispersion; Gaussian beams; Plasma

Domaines: Science des matériaux [cond-mat.mtrl-sci]

Didier Felbacq, Alexandru Cabuz, Brahim Guizal. Spatial dispersion in an array of metallic nanorods. Journal of Nanophotonics, 2011, 5 (1), pp.051512. ⟨10.1117/1.3562938⟩. ⟨hal-00808350⟩