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ABSTRACT: This paper introduces a design methodology for low-loss optical cloaks that is based on arrays of chalcogenide glass resonators. We employ full-wave electromagnetic simulations to investigate resonance modes of DRs, examine experimentally measured material parameters of available chalcogenide glass, and design resonator configurations and their arrangenment in the cloak for operation in the near-infrared range. Coupling effects in these DR arrays are considered and taken into account.
Antennas and Propagation Society International Symposium, 2009. APSURSI '09. IEEE; 07/2009
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ABSTRACT: Nano-metamaterials have been shown to exhibit unusual and configurable optical responses. In this paper we study visible-IR nonlinear transmission and all-optical switching enhancement of liquid crystals and neat organic liquids by dispersion of metallic nanospheres.
IEEE/LEOS Winter Topical Meeting Series, 2008; 02/2008
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ABSTRACT: A metamaterial design is presented with an effectively zero index of refraction, which utilises Drude-type material blocks arranged in a checkerboard pattern within a nondispersive dielectric host. An averaging effect over constituent materials of the checkerboard structure yields an effective permittivity that approaches zero. This results in a metamaterial with a zero index of refraction and a high intrinsic impedance. A design example and the associated effective medium parameters are provided
Electronics Letters 02/2007; · 0.96 Impact Factor
