Fig. 3. SEM images of morphologies at different laser scanning pitches and a laser power of 25 mW:

a 10 μm, b 20 μm, c 30 μm, d 50 μm, e 70 μm, and f 90 μm; b, c share the same scale bar with a, which is 25 μm, and the inset is a magnified SEM image with a scale bar of 5 μm; d–f share the same scale bar with d, which is 50 μm. g Snapshot of water droplets rolling on the superhydrophobic surfaces with a tilt angle of less than 1°