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Terahertz response of patterned epitaxial graphene
- Source :
- New Journal of Physics 15, 053045 (2015)
- Publication Year :
- 2014
-
Abstract
- We study the interaction between polarized terahertz (THz) radiation and micro-structured large-area graphene in transmission geometry. In order to efficiently couple the radiation into the two-dimensional material, a lateral periodic patterning of a closed graphene sheet by intercalation doping into stripes is chosen, yielding unequal transmittance of the radiation polarized parallel and perpendicular to the stripes. Indeed, a polarization contrast up to 20% is observed. The effect even increases up to 50% when removing graphene stripes in analogy to a wire grid polarizer. The polarization dependence is analyzed in a large frequency range from < 80 GHz to 3 THz, including the plasmon-polariton resonance. The results are in excellent agreement with theoretical calculations based on the electronic energy spectrum of graphene and the electrodynamics of the patterned structure.
- Subjects :
- Condensed Matter - Mesoscale and Nanoscale Physics
Subjects
Details
- Database :
- arXiv
- Journal :
- New Journal of Physics 15, 053045 (2015)
- Publication Type :
- Report
- Accession number :
- edsarx.1410.1273
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1088/1367-2630/17/5/053045