Plane-wave diffraction at the periodically corrugated boundary of vacuum and a negative-phase-velocity material
Plane-wave diffraction at the periodically corrugated boundary of vacuum and a negative-phase-velocity material
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 …