A dynamically-tunable graphene-based fano metasurface

Type
Conference Paper
Authors
Amin, Muhammad
Farhat, Mohamed
Bagci, Hakan cc
KAUST Department
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Electrical Engineering Program
Computational Electromagnetics Laboratory
Date
2013-09

Metadata
Show full item record
Abstract
A planar graphene metasurface with rectangular holes, which is capable of supporting a dynamically tunable Fano resonance at Terahertz (THz) frequencies, is proposed. The rectangular hole is patterned asymmetrically within the metasurface's unit cell to 'brighten' an originally-dark quadrupolar surface plasmon mode. Fano resonance is achieved via the destructive interference of this mode with a dipolar surface plasmon. The spectral location and line shape of the Fano resonance can be dynamically tuned via a gate voltage applied to the metasurface to change graphene's optical properties. The dynamic tunability of the Fano resonance suggests the applicability of the proposed metasurface in designing THz wave modulators and band-pass filters. © 2013 IEEE.
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Journal
2013 7th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics
Conference/Event name
2013 7th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics, METAMATERIALS 2013
DOI
10.1109/MetaMaterials.2013.6809017
Handle URI
http://hdl.handle.net/10754/564805
Collections
Conference Papers; Electrical Engineering Program; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division