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Phys Rev Lett. 2010 May 21;104(20):207403. Epub 2010 May 19.

Infrared spatial and frequency selective metamaterial with near-unity absorbance.

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  • 1Department of Physics, Boston College, 140 Commonwealth Avenue, Chestnut Hill, Massachusetts 02467, USA.

Abstract

We demonstrate, for the first time, a spatially dependent metamaterial perfect absorber operating in the infrared regime. We achieve an experimental absorption of 97% at a wavelength of 6.0   μm, and our results agree well with numerical full-wave simulations. By using two different metamaterial sublattices we experimentally demonstrate a spatial and frequency varying absorption which may have many relevant applications, including hyperspectral subsampling imaging.

PMID:
20867064
[PubMed]
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