Planewave diffraction at the periodically corrugated boundary of vacuum and a negative phase-velocity material

Abstract

Considering the diffraction of a plane wave by a periodically corrugated half-space, we show that the transformation of the refracting medium from positive/negative phase-velocity to negative/positive phase-velocity type has an influence on the diffraction efficiencies. This effect increases with increasing corrugation depth, owing to the presence of evanescent waves in the troughs of the corrugated interface.

Submitted for publication in Phys. Rev. E

References in corpus (1)

• The negative index of refraction demystified

Cited by in corpus (2)

• Fabry-Pérot Huygens' Metasurfaces: On Homogenization of Electrically Thick Composites
• On metallic gratings coated conformally with isotropic negative-phase-velocity materials