Figure 3
Experimental setup for the generation of Poincaré–Bessel beam. HWP1-3: λ/2 plates; PBS1-4: polarizing beam splitter cubes; SPP: spiral phase plate; QWP1: λ/4 plate; M1-3: mirrors; L1-4: lenses.
Figure 3 | Scientific Reports
Experimental setup for the generation of Poincaré–Bessel beam. HWP1-3: λ/2 plates; PBS1-4: polarizing beam splitter cubes; SPP: spiral phase plate; QWP1: λ/4 plate; M1-3: mirrors; L1-4: lenses.
