Observation of Moir\'e Plasmonic Skyrmion Clusters
Lan Zhang, Lipeng Wan, Weimin Deng, Liang Hou, Qiushun Zou, Tongbiao Wang, Daomu Zhao, Tianbao Yu

TL;DR
This paper introduces moiré plasmonic skyrmion clusters, demonstrating their formation, topological control, and rapid skyrmion number inversion in nanostructures through theoretical and experimental methods.
Contribution
It presents the first concept and experimental realization of moiré plasmonic skyrmion clusters with tunable topological properties and lattice configurations.
Findings
Demonstration of crystallized and quasi-crystallized skyrmion lattices
Rapid skyrmion number inversion in misaligned nanostructures
Topological control via twistronics engineering
Abstract
Skyrmions are topological defects belonging to nontrivial homotopy classes in particle theory. Their remarkably stable topology has recently been observed in electromagnetic waves. For the evanescent fields near a surface, this has been realized so far only for elementary optical skyrmions, with a fixed skyrmion number. Here we report, both in theory and experiment, the concept of moir\'e plasmonic skyrmion clusters, where multi-skyrmions are nested to form a large optical skyrmion cluster. By leveraging twistronics engineering of plasmonic nanostructures, we demonstrate both crystallized and quasi-crystallized optical skyrmion lattices, revealing an unprecedented degree of topological control. In a misaligned composite nanostructure, the rapid inverting of optical skyrmion number is achieved, which is explained by a lattice model. This topological change of moir\'eplasmonic skyrmion…
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsPhotonic and Optical Devices · Photonic Crystals and Applications · Semiconductor Quantum Structures and Devices
