A novel helical metamaterial absorber: Simulation study with the FDTD method

Author

Zhenyu Yang ; Zeqin Lu ; Lin Wu ; Peng Zhang ; Ming Zhao

Author_Institution

Wuhan Nat. Lab. of Optoelectron.(WNLO), Huazhong Univ. of Sci. & Technol., Wuhan, China

fYear

2012

fDate

8-10 Oct. 2012

Firstpage

1

Lastpage

3

Abstract

In this work, a novel optical metamaterial absorber is proposed which has properties of broad band and independent to polarization. The absorber consists of opposite-handedness metallic triple-helix array. Simulated with the finite-difference time-domain (FDTD) method, an average absorbance of 89.10% is observed in the region of 0.33~1.22 μm as well as an absorption peak of 97.57% at 0.43 μm, Compared with many existing planar metamaterial absorbers, this helical metamaterial absorber shows advantages of broad-band and polarization independence.

Keywords

finite difference time-domain analysis; light absorption; light polarisation; optical metamaterials; FDTD method; finite-difference time-domain method; helical metamaterial absorber; opposite-handedness metallic triple-helix array; optical metamaterial absorber; planar metamaterial absorbers; polarization independence; Arrays; Finite difference methods; Magnetic materials; Metamaterials; Optical attenuators; Optical polarization; Optical sensors; Polarization; absorption of light; metamaterials;

fLanguage

English

Publisher

ieee

Conference_Titel

Metamaterials (Meta), 2012 International Workshop on

Conference_Location

Nanjing

Print_ISBN

978-1-4673-2807-4

Type

conf

DOI

10.1109/META.2012.6464961

Filename

6464961