Fast capillary waves on an underwater superhydrophobic surface.

ABSTRACT: The propagation of interfacial waves in free and constrained conditions, such as deep and shallow water, has been broadly studied over centuries. It is a common event that anyone can witness, while contemplating the ocean waves washing ashore. As a complementary configuration, this work introduces waves propagating on an interface restricted by its pinning to the solid microstructures of an underwater superhydrophobic surface. The latter has the ability to stabilize a well-defined microscale gas layer, called a plastron, trapped between the water and the solid phase. The acoustic radiation force produced with focused MHz ultrasound successfully triggers kHz "plastronic waves", i.e., capillary waves travelling on a plastron's gas-water interface. The exposed waves possess interesting featur

SUBMITTER: Fauconnier M 

PROVIDER: S-EPMC11821838 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature