Ultrafast Science / 2022 / Article / Fig 19

Review Article

Nature-Inspired Superwettability Achieved by Femtosecond Lasers

Figure 19

Surface microstructure and wettability of the femtosecond laser-ablated titanium substrate. (a–d) SEM images of the laser-induced hierarchical microstructure. Inset: image of the laser-treated titanium sheet. (e) Water droplet on the resultant surface in air. (f) Underwater oil droplet on the resultant surface. Reproduced from [95] with the permission.