期刊
OPTICS EXPRESS
卷 24, 期 18, 页码 20454-20460出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.24.020454
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资金
- National Natural Science Foundation of China (NSFC) [11274198, 51532004]
In this work, we numerically designed and then experimentally verified a metamaterial perfect absorber based on artificial dielectric atoms. This metamaterial absorber is composed of dielectric ceramic material (SrTiO3) atoms embedded in a background matrix on a metal plate. The dielectric atoms couple strongly to the incident electric and magnetic fields at the Mie resonance mode, leading to the narrow perfect absorption band with simulated and experimental absorptivities of 99% and 98.5% at 8.96 GHz, respectively. The designed metamaterial perfect absorber is polarization insensitive and can operate in wide angle incidence. (C) 2016 Optical Society of America
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