Enantioselective optical gradient forces using 3D structured vortex light

Here we highlight enantioselective optical gradient forces present in 3D structured vortex tweezing systems. One chiral force originates from the circular polarization of light, while remarkably other is independent input polarization, even occurring for unpolarized and not 2D light nor propagating plane waves. This latter sorting mechanism allows trapping particles into distinct rings transverse through conservative radial forces.