Review on vortex beams with low spatial coherence

Figures & data

Figure 1. Focused intensity of optical coherence vortex lattices in the focal plane for different values of the initial coherence width [124].

Figure 2. Simulation of the propagation of light beam through turbulent atmosphere by multiple random phase screens [144].

Figure 3. Focused intensity distribution of a partially coherent LG_0l beam for different values of the topological charge and initial coherence width [145].

Figure 4. Normalized intensity and modulus of the degree of coherence of a focused partially coherent LG_pl beam with p= 1 and l= 1 obstructed by a sector-shaped opaque obstacle with center angle α =90° in the focal plane for different values of initial coherence width [146].

Figure 5. Experimental setup for generating a GSM vortex beam. NDF, neutral density filter; RGGD, rotating ground-glass disk; GAF, Gaussian amplitude filter; SPP, spiral phase plate; L₁, L₂, thin lenses [112].

Figure 6. Experimental setup for generating nonconventional correlated partially coherent vortex beams [124].

Figure 7. Experimental results of the normalized-focused intensity distribution of optical coherence vortex lattices for different initial coherence width [124].

Figure 8. Experimental setup for digital generation of partially coherent vortex beams. BE, beam expander; SLM, spatial light modulator; L₁, L₂, thin lens; D, aperture [156].

Figure 9. Numerical results of the interference pattern of a GSM vortex beam for different values of the initial coherence width with topological charge l= 2.

Figure 10. Distribution of the modulus of the degree of coherence of a partially coherent LG_0l beam with different values of the topological charge l in the focal plane for different state of coherence [145].

Figure 11. (a–e) Theoretical simulations of the logarithm of the correlation function of a partially coherent LG_0l beam for different topological charges at certain propagation distance after passing through a couple of perpendicular cylindrical lenses [131].

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