Regensburg 2025 – scientific programme

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O: Fachverband Oberflächenphysik

O 23: Poster Ultrafast Electron Dynamics

O 23.13: Poster

Monday, March 17, 2025, 18:00–20:00, P2

Temporal evolution of surface plasmon polariton skyrmions — •Philipp Gessler, Alexander Neuhaus, Maria Azhar, Pascal Dreher, Frank Meyer zu Heringdorf, and Karin Everschor-Sitte — University of Duisburg-Essen, Germany

In recent years, structures reminiscent of those found in magnets [1] have been predicted and observed in Surface Plasmon Polaritons (SPPs). Of particular interest are topological SPP structures such as skyrmion lattices [2,3] or merons [4]. In particular, these structures have been identified in various quantities related to the electric field, many of which exhibit amplitudes that oscillate over time. Building on insights from micromagnetism, our objective is to explore the dynamic behavior of these novel SPP states beyond mere temporal oscillations.
[1] C. Back et al., J. Phys. D: Appl. Phys. 53, 36 (2020)
[2] S. Tsesses et al., Science 361, 6406 (2018)
[3] T. J. Davis et al., Science 368, 6489 (2020)
[4] Y. Zheng et al., Nanophotonics 13, 2 (2024)

Keywords: Plasmonics; Topology; Time-resolved phenomena; Skyrmion lattice; Topological spin textures