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Publications [#269896] of David R. Smith

Papers Published

  1. Smith, DR; Rye, PM; Mock, JJ; Vier, DC; Starr, AF, Enhanced diffraction from a grating on the surface of a negative-index metamaterial, Physical Review Letters, vol. 93 no. 13 (September, 2004), pp. 137405-1-137405-4, American Physical Society (APS) [PhysRevLett.93.137405], [doi]
    (last updated on 2024/03/28)

    Abstract:
    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.

    Keywords:
    Surface treatment;Refractive index;Optical devices;Magnetoelectric effects;Refraction;Microwaves;Magnetic permeability;Permittivity;Functions;Boundary conditions;Mathematical models;Computer simulation;


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