Figure 4
From: Controllable beam reshaping by mixing square-shaped and hexagonal optical vortex lattices
Left: Phase distributions of portions of square-shaped OV lattices with a removed central OV (a1), and with an encoded 1-D (b1) and quasi-2-D phase dislocations (c1). The arrows point to the position of the respective phase dislocation. Right: Additional structuring of the far field intensity profiles of the mixed square/hexagonal-shaped OV lattices by removing an OV (a2–a4), and by adding 1-D dark beam (b2–b4), and a quasi-2-D dark beam (c2–c4). First column of frames (a2,b2,c2) - experimental intensity profiles, second column - recorded interferograms, last column - numerical results. Lattice node spacings on the SLMs: Δsq = 41 pix. for the square-shaped and Δhex = 101 pix. for the hexagonal OV lattice. In each frame in the last column we show 10% of the total computational area.
