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Adv Mater. 2012 Jun 19;24(23):OP98-120, OP181. doi: 10.1002/adma.201200674. Epub 2012 May 25.

Metamaterial electromagnetic wave absorbers.

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1
Department of Physics, Boston College, Chestnut Hill, MA 02467, USA.

Abstract

The advent of negative index materials has spawned extensive research into metamaterials over the past decade. Metamaterials are attractive not only for their exotic electromagnetic properties, but also their promise for applications. A particular branch-the metamaterial perfect absorber (MPA)-has garnered interest due to the fact that it can achieve unity absorptivity of electromagnetic waves. Since its first experimental demonstration in 2008, the MPA has progressed significantly with designs shown across the electromagnetic spectrum, from microwave to optical. In this Progress Report we give an overview of the field and discuss a selection of examples and related applications. The ability of the MPA to exhibit extreme performance flexibility will be discussed and the theory underlying their operation and limitations will be established. Insight is given into what we can expect from this rapidly expanding field and future challenges will be addressed.

PMID:
22627995
DOI:
10.1002/adma.201200674
[Indexed for MEDLINE]
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