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Magneto-optic transmittance modulation observed in a hybrid graphene-split ring resonator terahertz metasurface

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  • Simone Zanotto
  • Christoph Lange
  • Thomas Maag
  • Alessandro Pitanti
  • Vaidotas Miseikis
  • Camilla Coletti
  • Riccardo Degl'Innocenti
  • Lorenzo Baldacci
  • Rupert Huber
  • Alessandro Tredicucci
Article number121104
<mark>Journal publication date</mark>21/09/2015
<mark>Journal</mark>Applied Physics Letters
Issue number12
Number of pages4
Publication StatusPublished
<mark>Original language</mark>English


By placing a material in close vicinity of a resonant optical element, its intrinsic optical response can be tuned, possibly to a wide extent. Here, we show that a graphene monolayer, spaced a few tenths of nanometers from a split ring resonator metasurface, exhibits a magneto-optical response which is strongly influenced by the presence of the metasurface itself. This hybrid system holds promises in view of thin optical modulators, polarization rotators, and nonreciprocal devices, in the technologically relevant terahertz spectral range. Moreover, it could be chosen as the playground for investigating the cavity electrodynamics of Dirac fermions in the quantum regime.