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Proceedings Paper

Interaction of single-layer CVD graphene with a metasurface of terahertz split-ring resonators
Author(s): Federico Valmorra; Giacomo Scalari; Curdin Maissen; Wangyang Fu; Christian Schönenberger; Jong Won Choi; Hyung Gyu Park; Mattias Beck; Jérôme Faist
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Paper Abstract

The interaction of large-area single-layer CVD-graphene with a metasurface constituted by THz split-ring resonators was studied via THz Time-Domain Spectroscopy in the frequency range 250 GHz÷2.75 THz. Transmission measurements showed that the presence of the graphene shifts the resonances of the THz-metasurface towards lower energies and increases the transmittance, mainly at resonance. A comparison between two possible configuration is here presented revealing a much stronger interaction for the case of split-ring resonators evaporated directly onto the CVD-graphene layer with respect to the opposite configuration. From the recent literature the presented system is a good candidate for THz modulators with possible use also in cavity-QED experiments.

Paper Details

Date Published: 14 March 2013
PDF: 6 pages
Proc. SPIE 8623, Ultrafast Phenomena and Nanophotonics XVII, 86230S (14 March 2013); doi: 10.1117/12.2004591
Show Author Affiliations
Federico Valmorra, ETH Zurich (Switzerland)
Giacomo Scalari, ETH Zurich (Switzerland)
Curdin Maissen, ETH Zurich (Switzerland)
Wangyang Fu, Univ. Basel (Switzerland)
Christian Schönenberger, Univ. Basel (Switzerland)
Jong Won Choi, ETH Zurich (Switzerland)
Hyung Gyu Park, ETH Zurich (Switzerland)
Mattias Beck, ETH Zurich (Switzerland)
Jérôme Faist, ETH Zurich (Switzerland)

Published in SPIE Proceedings Vol. 8623:
Ultrafast Phenomena and Nanophotonics XVII
Markus Betz; Abdulhakem Y. Elezzabi; Jin-Joo Song; Kong-Thon Tsen, Editor(s)

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