High-Speed Sorting of Sub-20 nm Chiral Particles via Toroidal-Enhanced Separated Potential Wells.

Enantioselective sorting at the nanoscale is highly significant in fields such as medical research, material science, and drug development. However, previous studies mainly focus on static chiral particle separation, hindering practical applications. Here, we utilize the synergy between enantioselective potential wells and flow fields to sort nanoparticle enantiomers at a high velocity of 800 μm/s.

Observation of Intricate Chiral Optical Force in a Spin-Curl Light Field.

Harnessing chiral optical forces facilitates numerous applications in enantioselective sorting and sensing. To date, significant challenges persist in substantiating the holistic complex theorem of these forces as experimental demonstrations employ common light waves (e.g.

Optical Forces on Chiral Particles: Science and Applications.

Chiral particles have attracted considerable attention due to their distinctive interactions with light, which enable a variety of cutting-edge applications. This review presents a comprehensive analysis of the optical forces acting on chiral particles, categorizing them into gradient force, radiation pressure, optical lateral force, pulling force, and optical force on coupled chiral particles. We thoroughly overview the fundamental physical mechanisms underlying these forces, supported by theoretical models and experimental evidence.