Fig. 1. Chiral light

Fig. 2. Illustration of a high numerical aperture system

Fig. 3. Chiral density of a plane wave with arbitrary polarization state propagating along the $-z$ direction

Fig. 4. Effect of the waist radius on the chiral density of the tightly focused vortex beams

Fig. 5. Effect of thetopological charge on the chiral density ofthe vortex beams with different polarizations

Fig. 6. Effect of the polarization state on the chiral density of the tightly focused vortex beams

Fig. 7. Effect of the polarization state and topological charge on the superchiral factor of the tightly focused vortex beams

Fig. 8. Distributions of superchiral factor $g/g_{\mathrm{C}\mathrm{P}\mathrm{L}}$ of the tightly focused vortex beams along optical axis