Enhanced diffraction from a grating on the surface of a negative-index metamaterial


Journal Article

The stepping of the refraction interface, due to the finite unit cell size was showed by numerical simulation and by measurements on negative-index metamaterial wedge samples. The surface stepping on the metamaterial sample constitutes a grating, which could be expected to generate a diffracted beam in addition to the zeroth order refracted beam. The results confirms theoretical predictions of enhanced diffraction for negative index grating surfaces. It was found that a surface stepping added to a positive index wedge produces a single refracted beam identical to that of the smooth wedge.

Full Text

Duke Authors

Cited Authors

  • Smith, DR; Rye, PM; Mock, JJ; Vier, DC; Starr, AF

Published Date

  • September 24, 2004

Published In

Volume / Issue

  • 93 / 13

International Standard Serial Number (ISSN)

  • 0031-9007

Digital Object Identifier (DOI)

  • 10.1103/PhysRevLett.93.137405

Citation Source

  • Scopus