Space-Time Optical Hopfion Crystals

作者：Wenbo Lin, Nilo Mata-Cervera, Yasutomo Ota, Yijie Shen, Satoshi Iwamoto · 发表于：Physical Review Letters · 年份：2025 · DOI：10.1103/hh5s-cprt · 被引用次数：21 · 研究领域：Optical Network Technologies、Plasmonic and Surface Plasmon Research、Optical Polarization and Ellipsometry

Hopfions-higher-dimensional topological quasiparticles with sophisticated 3D knotted spin textures discovered in condensed matter and photonic systems-show promise in high-density data storage and transfer. Here, we present crystalline structures of hopfions lying in space-time constructed by spatiotemporally structured light. Practical methodologies using bichromatic structured light beams or dipole arrays to assemble 1D and higher dimensional hopfion lattices are proposed, and a technique for tailoring topological orders is elucidated. Optical hopfion crystals constitute a new platform for high-dimensional topological information transfer.