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

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

2004-02-19

arxiv.org/abs/physics/0402095v1

Phys. Rev. E Vol. 69, Art. 057602 (2004)

Physics

Optics

Submitted for publication in Phys. Rev. E

Scientific paper

10.1103/PhysRevE.69.057602

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.

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