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Vorobyev, A Y; Guo, Chunlei
Optics express, 2010-Mar-29, 2010-03-29, 20100329, Letnik: 18, Številka: 7Journal Article
Using high-intensity femtosecond laser pulses, we create a novel surface pattern that transforms regular silicon to superwicking. Due to the created surface structure, water sprints vertically uphill in a gravity defying way. Our study of the liquid motion shows that the fast self-propelling motion of water is due to a supercapillary effect from the surface structures we created. The wicking dynamics in the produced surface structure is found to follow the classical square root of time dependence.
