Journal
OPTICS EXPRESS
Volume 21, Issue 21, Pages 24736-24741Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.21.024736
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Funding
- SNSF [140710]
- NCCR Materials with Novel Electronic Properties - MaNEP
- EC under Graphene Flagship [CNECT-ICT-604391]
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We demonstrate that giant Faraday rotation in graphene in the terahertz range due to the cyclotron resonance is further increased by constructive Fabry-Perot interference in the supporting substrate. Simultaneously, an enhanced total transmission is achieved, making this effect doubly advantageous for graphene-based magneto-optical applications. As an example, we present far-infrared spectra of epitaxial multilayer graphene grown on the C-face of 6H-SiC, where the interference fringes are spectrally resolved and a Faraday rotation up to 0.15 radians (9 degrees) is attained. Further, we discuss and compare other ways to increase the Faraday rotation using the principle of an optical cavity. (C) 2013 Optical Society of America
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