Experimental demonstration of a conformal optical metamaterial absorber

Author

Jiang, Zhi Hao ; Yun, Seokho ; Toor, Fatima ; Werner, Douglas H. ; Mayer, Theresa S.

Author_Institution

Dept. of Electr. Eng., Pennsylvania State Univ., University Park, PA, USA

fYear

2011

fDate

3-8 July 2011

Firstpage

1812

Lastpage

1815

Abstract

In this paper, we present the first ever experimental demonstration of a conformal optical metamaterial absorber. This metamaterial absorber, composed of a doubly periodic array of stub-loaded H-shaped nanopatches optimized by a genetic algorithm, has two polarization-insensitive and angularly-independent absorption bands at 3.3μm and 3.9μm with absorption larger than 90% up to an angle of incidence of 50°. The metamaterial structure was fabricated and characterized, showing strong agreement with theoretical predictions. Due to the Au ground plane, the performance of this metamaterial absorber is independent of the surface if covers.

Keywords

conformal antennas; electromagnetic wave absorption; metamaterials; microwave materials; conformal optical metamaterial absorber; doubly periodic array; genetic algorithm; stub-loaded H-shaped nanopatches; Absorption; Genetic algorithms; Gold; Magnetic materials; Metamaterials; Reflection; Reflectivity; absorber; conformal; metamaterial; nanopatches;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (APSURSI), 2011 IEEE International Symposium on

Conference_Location

Spokane, WA

ISSN

1522-3965

Print_ISBN

978-1-4244-9562-7

Type

conf

DOI

10.1109/APS.2011.5996848

Filename

5996848