Work

All-Dielectric Rod-Type Metamaterials at Optical Frequencies

Year: 2009

Type: article

Abstract: Light propagation in all-dielectric rod-type metamaterials is studied theoretically. The electric and magnetic dipole moments of the rods are derived analytically in the long-wavelength limit. The effective permittivity and permeability of a square lattice of rods are calculated by homogenizing the corresponding array of dipoles. The role of dipole resonances in the optical properties of the rod array is interpreted. This structure is found to exhibit a true left-handed behavior, confirming previous experiments [L. Peng, Phys. Rev. Lett. 98, 157403 (2007)10.1103/PhysRevLett.98.157403]. A scaling analysis shows that this effect holds at optical frequencies and can be obtained by using rods made, for example, of silicon.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.102.133901

Authors: K. Vynck, D. Felbacq, E. Centeno, A. I. Căbuz, D. Cassagne, B. Guizal

Institution: Centre National de la Recherche Scientifique

Language: English

Topic: Metamaterials and Metasurfaces Applications

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

Open Access status: green

Funder: Agence Nationale de la Recherche

Award: Propagation des Ondes Electromagnétiques dans les Métamatériaux