Journal
OPTICS EXPRESS
Volume 19, Issue 15, Pages 14260-14267Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.19.014260
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Funding
- European Union
- TUBITAK [107A004, 107A012]
- Turkish Academy of Sciences
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We designed, fabricated, and experimentally characterized thin absorbers utilizing both electrical and magnetic impedance matching at the near-infrared regime. The absorbers consist of four main layers: a metal back plate, dielectric spacer, and two artificial layers. One of the artificial layers provides electrical resonance and the other one provides magnetic resonance yielding a polarization independent broadband perfect absorption. The structure response remains similar for the wide angle of incidence due to the sub-wavelength unit cell size of the constituting artificial layers. The design is useful for applications such as thermal photovoltaics, sensors, and camouflage. (C)2011 Optical Society of America
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