2024/04/04 by Vage Karakhanyan, Karakhanyan, Vage, Thierry Grosjean +1
Engineering · #FOS: Physical sciences #Optics (physics.optics) #Photonic and Optical Devices #Plasmonic and Surface Plasmon Research
paper · pdf · doi:10.48550/arxiv.2404.03738
openalex publication_date 2024/04/04 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Research at the frontier between optics and magnetism is revealing a wealth of innovative phenomena and avenues of exploration. Optical waves are demonstrating the capacity to induce ultrafast magnetism, while optical analogs of magnetic states, such as magnetic skyrmions, offer the prospect of novel spin-optical states. In this paper, we strengthen the synergy between light and magnetism by exploring the ability of plasmonic Neel skyrmions to create a stationary magnetic field within a thin gold film. We show that, when generated using a focused radially-polarized vortex beam, a plasmonic Neel skyrmion emerges as an optimum for inducing optomagnetism in a thin gold film. Optical skyrmions offer new degrees of freedom for enhancing and controlling optomagnetism in plasmonic nanostructures, with direct application in all-optical magnetization switching, magnetic recording, and the excitation of spin waves.