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Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
Published on: December 27, 2012
Graphene metamaterials based tunable terahertz absorber: effective surface conductivity approach
Andrei Andryieuski1, Andrei V Lavrinenko
1DTU Fotonik, Technical University of Denmark, Oersteds pl. 343, Kongens Lyngby, DK-2800, Denmark. andra@fotonik.dtu.dk
Optics Express
|April 11, 2013
Summary
We designed tunable thin-film metamaterial devices using effective surface conductivity. This approach enables efficient graphene-based perfect absorbers for various applications.
Area of Science:
- Condensed Matter Physics
- Materials Science
- Electromagnetism
Background:
- Metamaterials offer unique electromagnetic properties.
- Graphene is a promising material for tunable devices.
- Efficient design of thin-film devices is crucial for applications.
Purpose of the Study:
- To present an efficient design methodology for functional thin-film metamaterial devices.
- To demonstrate a graphene-based perfect absorber.
- To investigate tunable narrowband and broadband absorbers.
Main Methods:
- Utilized the effective surface conductivity approach for device design.
- Formulated perfect absorber requirements in terms of surface conductivity.
- Investigated graphene wire medium and graphene fishnet metamaterials.
Main Results:
- Demonstrated the efficient design of tunable thin-film metamaterial devices.
- Successfully designed a graphene-based perfect absorber.
- Showcased both narrowband and broadband tunable absorber functionalities.
Conclusions:
- The effective surface conductivity approach provides an efficient route to design functional thin-film metamaterials.
- Graphene-based metamaterials can be effectively utilized for tunable perfect absorbers.
- The presented design enables versatile absorption control for diverse applications.
