Generation of Optical Vortex Arrays Using Single-Element Reversed-Wavefront Folding Interferometer
Figure 3
(a) and (c) are the recorded interferograms of generated vortex arrays at the rotation angles 0.25° and 0.40° of CBS by using experimental set-up Figure 1(b) and (b) and (d) are the corresponding phase-maps due to the superposition of four spherical wavefronts respectively.
