Triple-band perfect metamaterial absorption, based on single cut-wire bar

In general metamaterial perfect absorber, the single meta-pattern makes the single absorption band. Therefore, the multi-absorption bands need the corresponding kinds of meta-patterns. Here, we introduce the triple-band metamaterial perfect absorber utilizing only single kind of pattern. We also dem...

Full description

Saved in:
Bibliographic Details
Published in:Applied physics letters 2015-02, Vol.106 (7)
Main Authors: Yoo, Y. J., Kim, Y. J., Hwang, J. S., Rhee, J. Y., Kim, K. W., Kim, Y. H., Cheong, H., Chen, L. Y., Lee, Y. P.
Format: Article
Language:English
Subjects:
Absorbers (materials)
Absorption spectra
Applied physics
Billets
Electromagnetic radiation
Magnetic resonance
Metamaterials
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In general metamaterial perfect absorber, the single meta-pattern makes the single absorption band. Therefore, the multi-absorption bands need the corresponding kinds of meta-patterns. Here, we introduce the triple-band metamaterial perfect absorber utilizing only single kind of pattern. We also demonstrate the absorption mechanism of the triple perfect absorption. The first and the second absorption bands were induced by the fundamental magnetic resonance of the major and the minor axes, respectively, of cut-wire bar. The third peak was caused by the third-harmonic magnetic resonance of the major axis. Additionally, the unexpected third band was formed, which was the overlapping of the third absorption peak with another absorption peak, which was made by pairs of antiparallel currents parallel or antiparallel to the incident electromagnetic wave.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4913243