Equivalent-Circuit Interpretation of the Polarization Insensitive Performance of THz Metamaterial Absorbers

Author

Wilbert, David S. ; Hokmabadi, Mohammad Parvinnezhad ; Kung, Peter ; Kim, Song Min

Author_Institution

Electr. & Comput. Eng. Dept., Univ. of Alabama, Tuscaloosa, AL, USA

Volume

3

Issue

6

fYear

2013

fDate

Nov. 2013

Firstpage

846

Lastpage

850

Abstract

Polarization insensitive metamaterial perfect absorbers were investigated through finite element numerical method and a new equivalent-circuit electric model was proposed to interpret this polarization insensitivity. The devices were fabricated to validate the model and experimental measurements were shown to be in good agreement with the simulated results. This absorber device is suitable for future use in THz sensing and detection applications.

Keywords

electromagnetic wave absorption; equivalent circuits; finite element analysis; terahertz metamaterials; equivalent circuit electric model; finite element numerical method; polarization insensitive metamaterial perfect absorbers; polarization insensitive performance; polarization insensitivity; terhertz metamaterial absorbers; Conductivity; Frequency selective surfaces; Metamaterials; Polarization; Resonant frequency; Frequency selective surface; metamaterials; perfect absorber; polarization independent; reflection; resonance; terahertz (THz);

fLanguage

English

Journal_Title

Terahertz Science and Technology, IEEE Transactions on

Publisher

ieee

ISSN

2156-342X

Type

jour

DOI

10.1109/TTHZ.2013.2285311

Filename

6658946