Space-Time Optical Hopfion Crystals by Wenbo Lin ,1,* Nilo Mata-Cervera ,2 Yasutomo Ota ,3 Yijie Shen ,2,4,† and Satoshi Iwamoto 5,6,‡nstitute of Integrated Research, Institute of Science Tokyo, 2-12-1 Ookayama, Merugo, Tokyo 152-8550, Japan r Disruptive Photonic Technologies, School of Physic instant download

Space-Time Optical Hopfion Crystals by Wenbo Lin ,1,* Nilo Mata-Cervera ,2 Yasutomo Ota ,3 Yijie Shen ,2,4,† and Satoshi Iwamoto 5,6,‡nstitute of Integrated Research, Institute of Science Tokyo, 2-12-1 Ookayama, Merugo, Tokyo 152-8550, Japan r Disruptive Photonic Technologies, School of Physic instant download

Hopfions—higher-dimensional topological quasiparticles with sophisticated 3D knotted spin texturesdiscovered in condensed matter and photonic systems—show promise in high-density data storage andtransfer. Here, we present crystalline structures of hopfions lying in space-time constructed by spatiotemporally structured light. Practical methodologies using bichromatic structured light beams or dipolearrays to assemble 1D and higher dimensional hopfion lattices are proposed, and a technique for tailoringtopological orders is elucidated. Optical hopfion crystals constitute a new platform for high-dimensionaltopological information transfer.DOI: 10.1103/hh5s-cprt