Dual broadband metamaterial absorber

Title
Dual broadband metamaterial absorber
Authors
이영백
Keywords
PERFECT ABSORBER
Issue Date
2015-02
Publisher
OPTICAL SOC AMER
Citation
OPTICS EXPRESS, v. 23, Page. 3861-3868
Abstract
We propose polarization-independent and dual-broadband metamaterial absorbers at microwave frequencies. This is a periodic meta-atom array consisting of metal-dielectric-multilayer truncated cones. We demonstrate not only one broadband absorption from the fundamental magnetic resonances but additional broadband absorption in high-frequency range using the third-harmonic resonance, by both simulation and experiment. In simulation, the absorption was over 90% in 3.93 - 6.05 GHz, and 11.64 - 14.55 GHz. The corresponding experimental absorption bands over 90% were 3.88 - 6.08 GHz, 9.95 - 10.46 GHz and 11.86 - 13.84 GHz, respectively. The origin of absorption bands was elucidated. Furthermore, it is independent of polarization angle owing to the multilayered circular structures. The design is scalable to smaller size for the infrared and the visible ranges. (C) 2015 Optical Society of America
URI
https://www.osapublishing.org/oe/abstract.cfm?uri=oe-23-4-3861http://hdl.handle.net/20.500.11754/22266
ISSN
1094-4087
DOI
http://dx.doi.org/10.1364/OE.23.003861
Appears in Collections:
COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > PHYSICS(물리학과) > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE