Fig. 1. Total intensity distribution and phase distribution of field near the focal point when the topological charge is 0, 5 and 10

Fig. 2. Schematic of analyzing the chiral sphere scattering

Fig. 3. Scattering intensity and scattering chiral signal of sphere with κ=0.01 and −0.01 under different topological charges

Fig. 4. Scattering chiral signal and chiral signal enhancement factor of different size spheres in tightly focused OAM beam and circularly polarized beam. g and g_CPL are the chiral signal enhancement factor of linearly polarized OAM beams and circularly polarized beams

Fig. 5. Scattering chiral signals from the sphere with different chiral parameters