Laser turns silicon superwicking
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...
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| Veröffentlicht in: | Optics express 2010-03, Vol.18 (7), p.6455-6460 |
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| container_title | Optics express |
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| creator | Vorobyev, A Y Guo, Chunlei |
| description | 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. |
| doi_str_mv | 10.1364/OE.18.006455 |
| format | Article |
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| ispartof | Optics express, 2010-03, Vol.18 (7), p.6455-6460 |
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| language | eng |
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| source | MEDLINE; DOAJ Directory of Open Access Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Alma/SFX Local Collection |
| subjects | Biophysics - methods Lasers Materials Testing Microfluidics - methods Microscopy, Electron, Scanning - methods Nanotechnology - methods Physics - methods Semiconductors Silicon - chemistry Surface Properties Time Factors Water - chemistry |
| title | Laser turns silicon superwicking |
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