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

Journal Article · Mon Sep 21 00:00:00 EDT 2015 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4931704· OSTI ID:22482110

Zanotto, Simone; Pitanti, Alessandro ^[1]; Lange, Christoph; Maag, Thomas; Huber, Rupert ^[2]; Miseikis, Vaidotas; Coletti, Camilla ^[3]; Degl'Innocenti, Riccardo ^[4]; Baldacci, Lorenzo ^[5]; Tredicucci, Alessandro ^[6]

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1. NEST, Istituto Nanoscienze–CNR and Scuola Normale Superiore, Piazza San Silvestro 12, 56127 Pisa (Italy)
2. Department of Physics, University of Regensburg, 93040 Regensburg (Germany)
3. CNI@NEST, Istituto Italiano di Tecnologia, P.za S. Silvestro 12, 56127 Pisa (Italy)
4. Cavendish Laboratory, University of Cambridge, J. J. Thomson Avenue, Cambridge CB3 0HE (United Kingdom)
5. Scuola Superiore Sant'Anna, Institute of Life Sciences, P.za Martiri della Libertà 33, 56127 Pisa (Italy)
6. NEST, Istituto Nanoscienze-CNR and Dipartimento di Fisica “E. Fermi,” Università di Pisa, L.go Pontecorvo 3, 56127 Pisa (Italy)

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.

• OSTI ID: 22482110
• Journal Information: Applied Physics Letters, Vol. 107, Issue 12; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ELECTRODYNAMICS
FERMIONS
GRAPHENE
MODULATION
POLARIZATION
SPLIT-RING RESONATORS