On-chip optical skyrmionic beam generators

作者：Wenbo Lin, Yasutomo Ota, Yasuhiko Arakawa, Satoshi Iwamoto · 发表于：Optica · 年份：2024 · DOI：10.1364/optica.540469 · 被引用次数：46 · 研究领域：Photonic and Optical Devices、Thermal Radiation and Cooling Technologies、Mechanical and Optical Resonators

Optical skyrmion beams, which encompass a two-dimensional topology in their spatial structures, are promising candidates for ultra-dense optical communications and advanced matter manipulation. Generating such light beams using a chip-based approach will broaden their applications and promote the advancement of untapped fundamental science. Herein, we present a breakthrough in chip-based technology by experimentally demonstrating on-chip devices capable of generating optical skyrmions with tailored topological invariants. These devices, fabricated with high precision, exhibit behaviors that closely align with theoretical predictions and numerical simulations. The realization of on-chip optical skyrmion beam generators ushers a new dawn in optical and material sciences.