The magnetic response of graphene split-ring metamaterials

Nikitas Papasimakis; Sukosin Thongrattanasiri; Nikolay I Zheludev; FJ García de Abajo

doi:10.1038/lsa.2013.34

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The magnetic response of graphene split-ring metamaterials

Original Articles

- The magnetic response of graphene split-ring metamaterials
- Light: Science & Applications Vol. 2, Issue 3-4, (2013)
- Affiliations：
  
  1.Optoelectronics Research Centre and Centre for Photonic Metamaterials, University of Southampton, Southampton, UK
  2.IQFR – CSIC, Serrano 119, 28006 Madrid, Spain
  3.Centre for Disruptive Photonic Technologies, Nanyang Technological University, Singapore
  4.ICFO–Institut de Ciencies Fotoniques, Mediterranean Technology Park, 08860 Castelldefels (Barcelona), Spain
- Author bio：
  
  Dr N Papasimakis, Optoelectronics Research Centre and Centre for Photonic Metamaterials, University of Southampton, Southampton SO17 1BJ, UK Email: np3@orc.soton.ac.uk
  Professor FJ García de Abajo, IQFR – CSIC, Serrano 119, 28006 Madrid, Spain. Email: j.g.deabajo@nanophotonics.es
- Funds：
- DOI：10.1038/lsa.2013.34
  CLC：
- Published：2013-12，
  
  Published Online：05 July 2013，
  
  Received：23 September 2012，
  
  Revised：11 January 2013，
  
  Accepted：21 January 2013
- Accepted：
Scan QR Code
Papasimakis, N. et al. The magnetic response of graphene split-ring metamaterials. Light: Science & Applications, 2, e78 (2013).
DOI：

Papasimakis, N. et al. The magnetic response of graphene split-ring metamaterials. Light: Science & Applications, 2, e78 (2013). DOI： 10.1038/lsa.2013.34.

摘要

Abstract

Graphene has emerged as a promising platform for THz plasmonics

allowing high confinement

long lifetimes and fast electrical tunability. Here

we predict a strong magnetic dipole response by graphene split nanorings at THz frequencies

allowing the attainment of metamaterials with a high degree of field confinement (approximately one hundredth of the excitation wavelength) that is not reachable with conventional noble metals. The magnetic response of highly doped graphene split-rings in the far-infrared is much stronger than that displayed by gold structures of similar thicknesses. We further explored stacked graphene layers as a practical way of producing high-frequency magnetism in thin

electrically tunable metamaterials. Our results support the great potential of using graphene to achieve electrically tunable magnetic metamaterials.

关键词

Keywords

artificial magnetismgraphenegraphene plasmonsmetamaterialsplasmonics

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