Skyrmionic Topologies of Optical Forces for Stable Separation and Transportation of Chiral Nanoparticles
Year: 2026
Type: article
Abstract: High Resolution Image Download MS PowerPoint Slide Optical skyrmions are topological quasiparticles revolutionizing optical detection, metrology, and communications. Owing to their topological properties and deep-subwavelength feature size, optical skyrmions are beneficial for the stable and precise manipulations of molecules and atoms for biomedicine and quantum applications. However, few studies have addressed the quasiparticles under light–matter interactions. In this work, we investigate the interactions between symmetry-broken optical beams and chiral dipolar nanoparticles to construct skyrmionic optical forces for chiral separation and transportation applications. We study the influence of material properties on diverse components of optical force and achieve the transition from Meron topology to skyrmion topology. We further demonstrate that the skyrmionic topology emerges prevalently in chiral–light interactions and the skyrmionic optical force exhibits excellent stability against external disturbances. Our findings uncover the underlying topological properties in light–matter interactions and enable robust manipulations of chiral nanoparticles.
Source: ACS Photonics
Institution: Shenzhen University
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,500
OpenAlex ID: W7147505213