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UID:6a4bb18c25b31
DTSTART:20260715T143000Z
SEQUENCE:0
TRANSP:OPAQUE
DTEND:20260715T153000Z
LOCATION:Seminar Room
SUMMARY:ICFO | YIJIE SHEN
CLASS:PUBLIC
DESCRIPTION:Topological complex electromagnetic waves give access to nontri
 vial light-matter interactions and provide additional degrees of freedom f
 or information transfer. For instance\, topologically stable quasiparticle
 s or skyrmions have been demonstrated in quantum fields\, solid-state phys
 ics\, and magnetic materials\, but only recently observed in photonic fiel
 ds\, triggering fast expanding research across different spectral ranges a
 nd applications. Here I introduce an extended family of photonic skyrmions
  within a unified framework\, starting from fundamental theories to experi
 mental generation and topological control in spatiotemporally structured l
 ight. I will further highlight generalized classes of structured wave topo
 logical quasiparticles beyond optical skyrmions and outline their exotic t
 opological robust properties\, emerging applications\, future trends\, and
  open challenges.\nRefs: Nat. Photonics 18\, 15-25 (2024)\; Nature 638\, 3
 94-400 (2025)\; Adv. Opt. Photonics 17(2) 295-374 (2025)\; Optics &amp\; P
 hotonics News 36\, 26-33 (2025)\; Nat. Electron. 9\, 479&ndash\;488 (2026)
DTSTAMP:20260706T134548Z
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