Journal
OPTICS EXPRESS
Volume 21, Issue 3, Pages 3540-3546Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.21.003540
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Funding
- LANL LDRD program
- National Nuclear Security Administration of the U.S. Department of Energy at Los Alamos National Laboratory [DE-AC52-06NA25396]
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We develop a simple treatment of a metamaterial perfect absorber (MPA) based on grating theory. We analytically prove that the condition of MPA requires the existence of two currents, which are nearly out of phase and have almost identical amplitude, akin to a magnetic dipole. Furthermore, we show that non-zero-order Bragg modes within the MPA may consume electromagnetic energy significantly. (C) 2013 Optical Society of America
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