Fig. 1. Intensity patterns of LG beams for half-integer topological charges at Fraunhofer diffraction plane

Fig. 2. Intensity patterns of LG beams at Fraunhofer diffraction plane for non-integer topological charges varying from 2.1 to 3.0 with steps of 0.1

Fig. 3. Phase distributions of LG beams at Fraunhofer diffraction plane as topological charge increases from 2.1 to 5.0. (a1) l=2.1; (b1) l=2.5; (c1) l=2.9; (d1) l=3.0; (a2) l=3.1; (b2) l=3.5; (c2) l=3.9; (d2) l=4.0; (a3) l=4.1; (b3) l=4.5; (c3) l=4.9; (d3) l=5.0

Fig. 4. Distributions of zero contour of LG beam real and imaginary parts at Fraunhofer diffraction plane as topological charge increases from 2.1 to 5.0

Fig. 5. Trajectories of phase vortices in central region as topological charge increases from 2.1 to 5.0 with steps of 0.1