Terahertz response of patterned epitaxial graphene

Journal article

Publication Details

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


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.

FAU Authors / FAU Editors

Preu, Sascha Dr.
Lehrstuhl für Angewandte Physik
Sorger, Christian
Lehrstuhl für Angewandte Physik
Weber, Heiko B. Prof. Dr.
Lehrstuhl für Angewandte Physik

Research Fields

Light-Matter Interaction in the Terahertz Range (Dr. Malzer, Prof. Weber)
Lehrstuhl für Angewandte Physik

How to cite

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

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


Last updated on 2018-11-08 at 02:47