Gate-controlled mid-infrared light bending with aperiodic graphene nanoribbons array

Eduardo Carrasco, Michele Tamagnone, Juan R. Mosig, Tony Low, Julien Perruisseau-Carrier

Research output: Contribution to journalArticlepeer-review

42 Scopus citations

Abstract

Graphene plasmonic nanostructures enable subwavelength confinement of electromagnetic energy from the mid-infrared down to the terahertz frequencies. By exploiting the spectrally varying light scattering phase at the vicinity of the resonant frequency of the plasmonic nanostructure, it is possible to control the angle of re flection of an incoming light beam. We demonstrate, through full-wave electromagnetic simulations based on Maxwell equations, the electrical control of the angle of reflection of a mid-infrared light beam by using an aperiodic array of graphene nanoribbons, whose widths are engineered to produce a spatially varying reflection phase profile that allows for the construction of a far-field collimated beam towards a predefined direction.

Original languageEnglish (US)
Article number134002
JournalNanotechnology
Volume26
Issue number13
DOIs
StatePublished - Mar 11 2015

Bibliographical note

Publisher Copyright:
© 2015 IOP Publishing Ltd.

Keywords

  • Graphene
  • Metamaterials
  • Plasmon

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