Dresden 2026 – wissenschaftliches Programm

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O: Fachverband Oberflächenphysik

O 26: Plasmonics and nanooptics: Fabrication, characterization and applications – Poster

O 26.3: Poster

Montag, 9. März 2026, 18:00–20:00, P2

Dissipation engineered plasmonic ratchet — •Anna Sidorenko¹, Jan Mathis Giesen², Sebastian Eggert², and Stefan Linden¹ — ¹Physikalisches Institut, Rheinische Friedrich-Wilhelms-Universität Bonn, 53115 Bonn, Germany — ²Physics Department and Research Center OPTIMAS, RPTU University Kaiserslautern-Landau, D-67663 Kaiserslautern, Germany

This joint theoretical and experimental study presents a new design of a plasmonic ratchet, where directional transport is implemented purely by dissipation. Using Floquet theory, we identify resonant driving regimes depending on driving frequency and dissipation rates. An experimental observation of the ratchet effect in arrays of evanescently coupled plasmonic waveguides is provided by utilizing leakage radiation microscopy. Remarkably, we find that on resonance the transmitted signal shows lower losses for stronger local dissipation.

Keywords: Directional transport; Waveguide arrays; Ratchet; Dissipation; Floquet