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3 May 2012 Developments in extraordinary transmission metallic lens
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Abstract
The progress in developing metallic metamaterial lenses founded on stacked subwavelength hole arrays is reported. Before, the lens was studied when it emulates a medium with effective index of refraction -1. Here, the lens is investigated at higher frequencies, where it behaves like a near-zero index of refraction. We show that exploiting both regimes, dual-band capabilities are attainable. Moreover, a zoning technique is applied to the initial design to reduce the lens in terms of volume and weight, while the performance is maintained.
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Miguel Navarro-Cia, Miguel Beruete, Francisco Falcone, and Mario Sorolla "Developments in extraordinary transmission metallic lens", Proc. SPIE 8361, Radar Sensor Technology XVI, 83610S (3 May 2012); https://doi.org/10.1117/12.918608
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