Visualization 9.avi

Diffraction of a Gaussian beam with λ=532 nm and w_0=2.5 mm from a pure phase 2D FSG having a sinusoidal profile with l_x=l_y=1, Λ_x=Λ_y=0.1 mm, and γ_x=γ_y=π/4 under propagation from z=0 to z=2 m.