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23 May 2015 Various uses for optical metamaterials
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Optical metamaterials promise aberration free and better than diffraction limited performance for imaging systems through constructed materials made to regulate the interaction with electromagnetic waves. Optical metamaterials have the potential to miniaturize the optical bench and obtain diffraction-limited performance with a single device. The reduction of size, weight, and complexity of optical systems while maintaining performance is desired. In unmanned aircrafts, buoy systems, 360 degree imaging systems, and optronic or traditional periscope systems the lenses constitute a considerable percentage of the weight and volume. Another characteristic that is desired is optical cross section reduction for both visible and infrared bands. Optical cloaking using metamaterials has the potential to make objects indiscernible from its environment by masking objects signature. Other characteristics that are desired are materials that are perfect light absorbers for stray light baffles, detectors, or solar energy harvesting, nonlinear frequency conversion for photonics devices, and lenses or head window coatings to achieve specific properties. These topics are discussed in this paper.
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Jose G. Barbosa "Various uses for optical metamaterials", Proc. SPIE 9456, Sensors, and Command, Control, Communications, and Intelligence (C3I) Technologies for Homeland Security, Defense, and Law Enforcement XIV, 945618 (23 May 2015);


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