Negative index materials consisting of Au-Al<sub>2</sub>O<sub>3</sub>-Au films with a 2D array of apertures have been fabricated. Circular, elliptical and rectangular apertures are compared. Comparable figures of merit [-Re(<i>n</i>)/Im(<i>n</i>)] are observed for all three geometries.
© 2007 OSA
Z. Ku and S. R. J. Brueck, "Experimental Comparison of Circular, Elliptical and Rectangular (Fishnet) Negative-Index Metamaterials," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, OSA Technical Digest (CD) (Optical Society of America, 2007), paper QWH1.
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