Dresden 2020 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 33: Poster Session - Plasmonics and Nanooptics: Applications and other Aspects
O 33.6: Poster
Montag, 16. März 2020, 18:15–20:00, P1C
Investigating the coupling of plasmonic metasurfaces and WS2 — •Florian Spreyer and Thomas Zentgraf — Paderborn University, Paderborn, Germany
Recent studies show great potential for transition metal dicholgenides (TMD) and their optical application. By downscaling TMD*s to a monolayer flake of atomical thickness, TMD*s become semiconductors with a direct band gap. These monolayer flakes can be used to fabricate hybrid metasurfaces combining plasmonic nanoantennas and a monolayer of TMD. Hybrid metasurfaces with TMD*s with a band gap in the visible regime show great potential for an enhanced light matter interaction for nonlinear applications. Here we, investigate the coupling between a metasurface made of plasmonic gold nanoantennas and a monolayer of tungsten disulfide (WS2). By using photoluminescence and nonlinear measurements, we present recent results of the characterization of WS2 flakes with plasmonic nanoantennas fabricated on top of monolayer WS2 flakes.