| Publications [#269896] of David R. Smith
Papers Published
- 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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