Dual band metamaterial perfect absorber based on Mie resonances
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084 (China)
- School of Science, Beijing University of Posts and Telecommunications, Beijing 100876 (China)
- State Key Lab of Tribology, Department of Precision Instruments and Mechanology, Tsinghua University, Beijing 100084 (China)
We numerically and experimentally demonstrated a polarization insensitive dual-band metamaterial perfect absorber working in wide incident angles based on the two magnetic Mie resonances of a single dielectric “atom” with simple structure. Two absorption bands with simulated absorptivity of 99% and 96%, experimental absorptivity of 97% and 94% at 8.45 and 11.97 GHz were achieved due to the simultaneous magnetic and electric resonances in dielectric “atom” and copper plate. Mie resonances of dielectric “atom” provide a simple way to design metamaterial perfect absorbers with high symmetry.
- OSTI ID:
- 22594355
- Journal Information:
- Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 6 Vol. 109; ISSN APPLAB; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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