6 May 2008 Negative refraction and subwavelength focusing using left-handed composite metamaterials
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We review the recent experimental work done in our group on left-handed metamaterials (LHMs). The metamaterial structure is composed of periodic arrays of split-ring resonators and wire meshes and exhibits a left-handed propagation band at frequencies of negative permittivity and negative permeability. The verification of negative refraction is made by using prism shaped LHM and also by beam-shifting method. We have achieved subwavelength focusing of a point source with a resolution of 0.13λ through a flat LHM superlens.
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Ekmel Ozbay, Ekmel Ozbay, Koray Aydin, Koray Aydin, } "Negative refraction and subwavelength focusing using left-handed composite metamaterials", Proc. SPIE 6987, Metamaterials III, 698703 (6 May 2008); doi: 10.1117/12.785560; https://doi.org/10.1117/12.785560

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