Fig. 1. Typical femtosecond laser micromachining system^[56]

Fig. 2. Superhydrophobicity of lotus leaf. (a) Lotus leaf; (b) water droplet on lotus leaf; (c)(d) scanning electron microscope (SEM) images of lotus leaf^[1](superhydrophobic silicon fabricated by femtosecond laser); water droplet on (e) flat Si and (f) rough Si; (g) SEM images of femtosecond laser irradiated Si surface; (h) relationship between contact angle and laser fluence^[57]

Fig. 3. Different superhydrophobic materials fabricated by femtosecond laser: (a) Si^[56]; (b) Pt^[60]; (c) PDMS^[62]

Fig. 4. Underwater superoleophobic fish scale: (a) Fish and its wettability; (b) SEM images of fish scale; (c) superhydrophilicity of fish scale in air; (d) superoleophobicity of fish scale in water^[3]

Fig. 5. Different underwater superoleophobic materials fabricated by femtosecond laser.(a) Si^[68]; (b) silica glass^[69]; (c) Ti^[34]

Fig. 6. Peristome surface of Nepenthes alata and its slippery property. (a) Optical and SEM images of peristome surface^[79]; (b) preparation process of slippery surface^[17]; (c) slippery property of slippery surface^[17]

Fig. 7. Preparation process of slippery surface through femtosecond laser irradiation. (a) Nepenthes alata; (b) laser ablation; (c) low surface energy modification; (d) lubricant infusion; (e) droplet slipping on slippery surface^[82]

Fig. 8. Slippery PA6 surface fabricated by femtosecond laser. (a) SEM images of porous structures of laser irradiated PA6; (b) water and hexadecane droplet slipping process on slippery PA6; (c) different liquid slipping on PA6 surface; (d) stability of slippery PA6^[83]

Fig. 9. Self-repairing property of slippery PA6^[83]

Fig. 10. Universality of preparation of slippery polymer materials by femtosecond laser. (a) SEM images of different polymer materials fabricated by femtosecond laser; (b) water and hexadecane droplets slipping on slippery PET^[82]

Fig. 11. Underwater bubble slippery surface fabricated by femtosecond laser. (a) Schematic diagram of fabrication process; (b) slipping process of underwater bubble; (c) bubble transportation; (d) collection of bubbles^[84]

Fig. 12. Anisotropic slippery surface fabricated by femtosecond laser. (a) Schematic diagram of fabrication process; (b) mechanism of anisotropic sliding property of bubble in water; (c) SEM images of micro-grooves; (d) dynamic and static wettability of underwater bubble on anisotropic slippery surface; (e) bubble directional transportation on anisotropic slippery surface^[85]

Fig. 13. Growth condition of marine organisms on different surfaces^[18]

Fig. 14. Growth condition of C6 cell on different surfaces. (a) Flat and slippery PET surfaces; (b) slippery and rough PET surfaces; (c) number of cell growing on different surfaces^[82]

Fig. 15. Anti-fouling of dairy on slippery surface. Dried dairy deposits on (a) slippery surface and (b) ordinary surface; (c) sustainability of anti-fouling property of slippery surface^[94]

Fig. 16. Anti-frost and anti-icing property of slippery surface. (a) Comparison of frosting and defrosting effects on ordinary and slippery Al surface^[23]; (b) ice adhesion strength of different surfaces^[95]; (c) comparison of icing and deicing effects on ordinary and slippery Al surface^[23]

Fig. 17. Droplet manipulation on slippery surface. (a) Schematic diagram; (b) reciprocating movement of droplet; (c) droplets fusion^[98]