Fig. 1. （a）Phase distribution of the 1×5 LC SDZP；Photographs of the LC SDZP under（c）crossed polarizers and（b，d）polarized optical microscope. The scale bar is 200 μm.

Fig. 2. Schematic illustration of the optical setup

Fig. 3. （a）1×5 longitudinal vortex array generated by the LC SDZP；（b）Simulation and（c）experimental results of the intensity distribution on the meridian plane；（d）Diffraction patterns of OFF state.

Fig. 4. （a）Theoretical orientation angle and（b）micrograph of the LC q-plate（q=+0.5），the scale bar is 200 μm；（c）Optical setup with vortex beam incidence；（d）1×5 longitudinal vortex array generated by the LC SDZP with the incidence of a vortex beam（topological charge：+1）. The inset represents the incident vortex beam.

Fig. 5. 1×5 longitudinal vortex array generated by the vertically flipped LC SDZP with different incident light.（a）Gaussian beam；（b）Right circularly polarized vortex beam with the topological charge of +1；（c）Left circularly polarized vortex beam with the topological charge of +1；（d）Right circularly polarized vortex beam with the topological charge of +2. The insets represent the incident vortex beams，respectively.