Rasouli, Saifollah Hebri, Davud Visualization 1.avi Calculated diffraction patterns from an amplitude radial grating with m=10 illuminated by the vortex beams with w=2mm and l= 3, 10 at different propagation distances in the range from z=0 to z=10z_T. For the cases l= m= 10 by propagation, beams' energy are flowing towards the optical axes. All dimensions are in millimeters. Optical Vortices;Diffraction and gratings;Singular optics, topological defects;Optical Communications 2018-03-08
    https://opticapublishing.figshare.com/articles/media/Visualization_1_avi/5632231
10.6084/m9.figshare.5632231.v1