Optical and Wetting Properties of Femtosecond Laser Nanostructured Materials

Abstract:

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We modify optical and wetting properties of solids using a femtosecond laser surface nanostructuring technique. We demonstrate that this technique allows creating black and color metals. Absorptance of black titanium created in our study is measured to be about 90-97% over a broad wavelength range from the ultraviolet to infrared. Moreover, our technique can be also used for modifying wetting properties of solids. Here, we create a novel surface structure that transforms regular silicon to superwicking. This surface structure makes water run vertically uphill in a gravity defying way. Our study of the liquid motion shows that the extraordinarily strong self-propelling motion of water is due to a capillary effect from the surface structures we created.

Info:

Periodical:

Edited by:

Sergio Mejía

Pages:

57-67

DOI:

10.4028/www.scientific.net/JNanoR.14.57

Citation:

A.Y. Vorobyev and C. L. Guo, "Optical and Wetting Properties of Femtosecond Laser Nanostructured Materials", Journal of Nano Research, Vol. 14, pp. 57-67, 2011

Online since:

April 2011

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$35.00

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