Fig. 1. Schematic of laser texturing equipment

Fig. 2. Morphologies of the texturing pits. (a) Two-dimensional metallographic diagram; (b) cross-section schematic; (c) inverted trapezoid metallographic diagram; (d) inverted triangle metallographic diagram

Fig. 3. Characteristic parameters of pits versus pulse energy

Fig. 4. Morphologies of typical pits obtained at different pulse energies. (a) E=150 mJ; (b) E=200 mJ; (c) E=250 mJ

Fig. 5. Characteristic parameters of pits versus pulse width

Fig. 6. Morphologies of pits obtained at different pulse widths. (a) τ=200 μs; (b) τ=100 μs; (c) τ=50 μs

Fig. 7. Laser texturing pits' surface morphology obtained at different pulse widths. (a) τ=90 μs; (b) τ=80 μs; (c) τ=60 μs; (d) τ=50 μs

Fig. 8. Characteristic parameters of pits versus number of laser pulses

Fig. 9. Morphologies of pits obtained at different number of laser pulses. (a) n=1; (b) n=10; (c) n=20

Fig. 10. Characteristic parameters of pits versus defocusing amount

Fig. 11. Morphologies of typical pits obtained at different defocusing amount Δ