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Opt Lett. 2009 Aug 1;34(15):2294-6.

Oblique response of a split-ring-resonator-based left-handed metamaterial slab.

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  • 1Nanotechnology Research Center, Department of Physics, Bilkent University, Bilkent, 06800 Ankara, Turkey.


We experimentally studied the transmission response of a one-dimensional rectangle-prism-shaped metamaterial slab for oblique incidence angles. The electrical size of the split-ring resonators was 1 order of magnitude smaller than the operation wavelength ~8.5 cm. We demonstrated that the left-handed transmission peak preserved up to an angle of incidence 45 degrees . The angular measurements were performed with respect to two lateral directions. The confirmed insensitivity of split-ring-resonator-based metamaterials to the angle of incidence makes them a good candidate for superlens applications.

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