article · Light Science & Applications
Topology is usually perceived intrinsically immutable for a given object. We argue that optical topologies do not immediately enjoy such benefits. Using 'optical skyrmions' as an example, we show that they will exhibit varying textures and topological invariants (skyrmion numbers), depending on how to construct the skyrmion vector when projecting from real to parameter space. We demonstrate the fragility of optical skyrmions under a ubiquitous scenario--simple reflection off an optical mirror. Optical topology is not without benefit, but it must not be assumed.
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DOI: 10.1038/s41377-024-01708-7
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