Magnetoplasmonic enhancement of Faraday rotation in patterned graphene metasurfaces
| Autor: | Alba Centeno, Jérôme Faist, Clara F. Moldovan, Amaia Zurutuza, Jean-Marie Poumirol, Luis Martín-Moreno, T. M. Slipchenko, Alexey B. Kuzmenko, Michele Tamagnone, Adrian M. Ionescu, Hamed Hasani, Peter Q. Liu, Juan R. Mosig |
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| Přispěvatelé: | European Commission, Swiss National Science Foundation, Hasler Foundation |
| Rok vydání: | 2018 |
| Předmět: |
Terahertz radiation
Cyclotron resonance FOS: Physical sciences Physics::Optics ddc:500.2 02 engineering and technology 01 natural sciences law.invention 010309 optics symbols.namesake Optics law 0103 physical sciences Faraday effect Mesoscale and Nanoscale Physics (cond-mat.mes-hall) Physics Condensed Matter - Mesoscale and Nanoscale Physics business.industry Graphene Biasing 021001 nanoscience & nanotechnology Magnetic field symbols Optoelectronics 0210 nano-technology business |
| Zdroj: | Zaguán. Repositorio Digital de la Universidad de Zaragoza instname Digital.CSIC. Repositorio Institucional del CSIC Physical review, Vol. 97, No 24 (2018) P. 241410 |
| ISSN: | 2469-9950 |
| Popis: | Faraday rotation is a fundamental property present in all nonreciprocal optical elements. In the THz range, graphene displays strong Faraday rotation; unfortunately, it is limited to frequencies below the cyclotron resonance. Here, we show experimentally that in specifically designed metasurfaces, magnetoplasmons can be used to circumvent this limitation. We find excellent agreement between theory and experiment and provide physical insights and predictions on these phenomena. Finally, we demonstrate strong tunability in these metasurfaces using electric and magnetic field biasing. This work has been financially supported by the Swiss National Science Foundation (SNSF) under GrantsNo. 133583 and No. 168545, the Hasler Foundation under Project No. 11149, and the European Commission under Graphene Flagship (Contract No. CNECT-ICT-604391). |
| Databáze: | OpenAIRE |
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