The University of Southampton
University of Southampton Institutional Repository

Self-affine graphene metasurfaces for tunable broadband absorption

Self-affine graphene metasurfaces for tunable broadband absorption
Self-affine graphene metasurfaces for tunable broadband absorption
Graphene has emerged as a promising platform for THz metasurfaces supporting electrically tunable deep-subwavelength plasmonic excitations. Here, we introduce a broadband graphene metasurface based on the Hilbert curve, a continuous, space-filling fractal. We demonstrate enhancement of graphene absorption over a broad frequency band (0.5-60 THz) with an average absorption level exceeding 20%. Owing to the continuous nature of the metasurface patterns, both absorption level and bandwidth can be controlled electrically by varying the graphene charge carrier concentration.
1-20
Wu, Pin Chieh
1d63065a-5d41-4599-bca2-23bbf05ae42f
Papasimakis, Nikitas
f416bfa9-544c-4a3e-8a2d-bc1c11133a51
Tsai, Din Ping
29dbf01e-c22a-45a5-95b3-839a185d1779
Wu, Pin Chieh
1d63065a-5d41-4599-bca2-23bbf05ae42f
Papasimakis, Nikitas
f416bfa9-544c-4a3e-8a2d-bc1c11133a51
Tsai, Din Ping
29dbf01e-c22a-45a5-95b3-839a185d1779

Wu, Pin Chieh, Papasimakis, Nikitas and Tsai, Din Ping (2016) Self-affine graphene metasurfaces for tunable broadband absorption. Physical Review Applied, 6 (44019), 1-20. (doi:10.1103/PhysRevApplied.6.044019).

Record type: Article

Abstract

Graphene has emerged as a promising platform for THz metasurfaces supporting electrically tunable deep-subwavelength plasmonic excitations. Here, we introduce a broadband graphene metasurface based on the Hilbert curve, a continuous, space-filling fractal. We demonstrate enhancement of graphene absorption over a broad frequency band (0.5-60 THz) with an average absorption level exceeding 20%. Owing to the continuous nature of the metasurface patterns, both absorption level and bandwidth can be controlled electrically by varying the graphene charge carrier concentration.

Text
Manuscript_revised.pdf - Accepted Manuscript
Download (4kB)

More information

Accepted/In Press date: 26 September 2016
e-pub ahead of print date: 28 October 2016
Published date: 28 October 2016
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 400946
URI: http://eprints.soton.ac.uk/id/eprint/400946
PURE UUID: e05deb05-e79b-4d35-92eb-237f61f8bd00
ORCID for Nikitas Papasimakis: ORCID iD orcid.org/0000-0002-6347-6466

Catalogue record

Date deposited: 30 Sep 2016 09:59
Last modified: 15 Sep 2021 04:40

Export record

Altmetrics

Contributors

Author: Pin Chieh Wu
Author: Din Ping Tsai

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×