Sorger, Christian ; Preu, Sascha ; Schmidt, Johannes ; Winnerl, Stephan ; Bludov, Yuliy V. ; Peres, Nuno M. R. ; Vasilevskiy, Mikhail ; Weber, Heiko B. (2022)
Terahertz response of patterned epitaxial graphene.
In: New Journal of Physics, 17 (5)
doi: 10.26083/tuprints-00020605
Artikel, Zweitveröffentlichung, Verlagsversion
Kurzbeschreibung (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.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2022 |
| Autor(en): | Sorger, Christian ; Preu, Sascha ; Schmidt, Johannes ; Winnerl, Stephan ; Bludov, Yuliy V. ; Peres, Nuno M. R. ; Vasilevskiy, Mikhail ; Weber, Heiko B. |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Terahertz response of patterned epitaxial graphene |
| Sprache: | Englisch |
| Publikationsjahr: | 2022 |
| Verlag: | IOP Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | New Journal of Physics |
| Jahrgang/Volume einer Zeitschrift: | 17 |
| (Heft-)Nummer: | 5 |
| Kollation: | 7 Seiten |
| DOI: | 10.26083/tuprints-00020605 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/20605 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichungsservice |
| Kurzbeschreibung (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. |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-206051 |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 530 Physik 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau |
| Fachbereich(e)/-gebiet(e): | 18 Fachbereich Elektrotechnik und Informationstechnik 18 Fachbereich Elektrotechnik und Informationstechnik > Institut für Mikrowellentechnik und Photonik (IMP) 18 Fachbereich Elektrotechnik und Informationstechnik > Institut für Mikrowellentechnik und Photonik (IMP) > THz Bauelemente und THz Systeme |
| Hinterlegungsdatum: | 17 Feb 2022 10:39 |
| Letzte Änderung: | 21 Feb 2022 11:06 |
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