Fig. 1. Two-dimensional Airy beam image

Fig. 2. Simulation chart of array Airy beam

Fig. 3. Simulation of self-focusing of two-dimensional array Airy beam. (a) z=0 m; (b) z=300 m; (c) z=700 m; (d) z=1000 m

Fig. 4. 2D Airy beam main lobe migration trajectory

Fig. 5. Initial light intensity distribution of the array Airy beam at different lateral scales.(a) x0=5 mm; (b) x0=7 mm; (c) x0=10 mm; (d) x0=12 mm; (e) x0=15 mm; (f) x0=20 mm

Fig. 6. Effect of transverse scale x0 on self-focusing

Fig. 7. Experiment generation of array Airy beam. (a) Experimental setup; (b) multiphase diaphragm; (c) array Airy beam

Fig. 8. Experimental diagram of self-focusing of two-dimensional array Airy beam. (a) z=0 mm; (b) z=100 mm; (c) z=180 mm; (d) z=250 mm

Fig. 9. Multiphase diaphragms with different scale factors. (a) η=8 μm; (b) η=10 μm; (c) η =13 μm; (d) η=15 μm

Fig. 10. Self-focusing process of the array Airy beam under different phase diaphragms. (a1)-(a4) η=8 μm; (b1) -(b4) η=10 μm; (c1)-(c4) η=13 μm; (d1)-(d4) η=15 μm