Vortical Differential Scattering of Twisted Light by Dielectric Chiral Particles

Twisted light carrying orbital angular momentum inherently possesses a handedness, which would produce chiroptical responses by chiral matter. In this work, scheme of vortical differential scattering (VDS) was utilized to investigate the dielectric particles twisted light. The simulation results showed that have obvious VDS signals under illumination with opposite topological charges. larger relative parameter particles, more signals. extreme value can be enhanced reducing waist radius or adopting circularly polarized addition, non-spherical exhibit compared spherical ones. These findings are expected find potential applications in detection and identification substances.