Journal article


Terahertz response of patterned epitaxial graphene


Publication Details
Author(s): Sorger C, Preu S, Schmidt J, Winnerl S, Bludov Y, Peres N, Vasilevskiy M, Weber HB
Publisher: Institute of Physics: Open Access Journals / Institute of Physics (IoP) and Deutsche Physikalische Gesellschaft
Publication year: 2015
Volume: 17
ISSN: 1367-2630

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. We observe unequal transmittance of the radiation polarized parallel and perpendicular to the stripes. The relative contrast, partly enhanced by Fabry-Perot oscillations reaches 20%. 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.



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How to cite
APA: Sorger, C., Preu, S., Schmidt, J., Winnerl, S., Bludov, Y., Peres, N.,... Weber, H.B. (2015). Terahertz response of patterned epitaxial graphene. New Journal of Physics, 17. https://dx.doi.org/10.1088/1367-2630/17/5/053045

MLA: Sorger, Christian, et al. "Terahertz response of patterned epitaxial graphene." New Journal of Physics 17 (2015).

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