Open AccessPolarization-independent dual-band perfect absorber utilizing multiple magnetic resonances
Author(s) -
Young Joon Yoo,
Young Joo Kim,
Van Tuong Pham,
Joo Yull Rhee,
Ki Won Kim,
Won Ho Jang,
Y. H. Kim,
Hyeonsik Cheong,
YoungPak Lee
Publication year - 2013
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.21.032484
Subject(s) - metamaterial , optics , plasmon , polarization (electrochemistry) , planar , microwave , split ring resonator , multi band device , physics , metamaterial absorber , dielectric , surface plasmon , materials science , optoelectronics , tunable metamaterials , telecommunications , chemistry , computer graphics (images) , quantum mechanics , computer science , antenna (radio)
We propose a dual-band metamaterial perfect absorber at microwave frequencies. Using a planar metamaterial, which consists of periodic metallic donut-shape meta-atoms at the front separated from the metallic plane at the back by a dielectric layer, we demonstrate the multi-plasmonic high-frequency perfect absorptions induced by the third-harmonic as well as the fundamental magnetic resonances. The origin of the induced multi-plasmonic perfect absorption was elucidated. It was also found that the perfect absorptions at dual peaks are persistent with varying polarization.