SKM 2023 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 80: Plasmonics and Nanooptics IV: Light-Matter Interaction and Spectroscopy III
O 80.5: Vortrag
Donnerstag, 30. März 2023, 16:15–16:30, CHE 89
Short-range plasmonic skyrmions — •Bettina Frank1, Simon Mangold1, Harald Giessen1, Pascal Dreher2, Frank Meyer zu Heringdorf2, and Stefan Kaiser1 — 14. Physikalisches Institut, Universität Stuttgart, Germany — 2CENIDE, University of Duisburg-Essen
We utilize ultrathin, atomically flat, single crystalline gold flakes which compress the plasmon wavelength to lambda_air/7. Using hexagonal boundaries that are carved with focused gold ions, we demonstrate plasmonic skyrmions, both using PEEM as well as s-SNOM. The electromagnetic field is structured on a 140 nm scale, which offers opportunities for topological light-matter interaction on a deep subwavelength scale.