期刊
OPTICS EXPRESS
卷 18, 期 7, 页码 6455-6460出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.18.006455
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资金
- US Air Force Office of Scientific Research
- National Science Foundation
- Directorate For Engineering
- Div Of Chem, Bioeng, Env, & Transp Sys [0828370] Funding Source: National Science Foundation
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. (C) 2010 Optical Society of America
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