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Communication

Towards Rapid Fabrication of Superhydrophobic Surfaces by Multi-Beam Nanostructuring with 40,401 Beams

1
HiLASE Centre, Institute of Physics, Czech Academy of Sciences, Za Radnici 828, 252 41 Dolni Brezany, Czech Republic
2
R & D Department, Holo/Or Ltd., Einstein 13b, Ness Tziona 7403617, Israel
3
Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Brehova 7, 115 19 Prague, Czech Republic
4
Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 00 Prague, Czech Republic
*
Author to whom correspondence should be addressed.
Academic Editors: Florenta Costache, Stéphane Valette and Jörn Bonse
Nanomaterials 2021, 11(8), 1987; https://doi.org/10.3390/nano11081987
Received: 20 June 2021 / Revised: 25 July 2021 / Accepted: 27 July 2021 / Published: 2 August 2021
Superhydrophobic surfaces attract a lot of attention due to many potential applications including anti-icing, anti-corrosion, self-cleaning or drag-reduction surfaces. Despite a list of attractive applications of superhydrophobic surfaces and demonstrated capability of lasers to produce them, the speed of laser micro and nanostructuring is still low with respect to many industry standards. Up-to-now, most promising multi-beam solutions can improve processing speed a hundred to a thousand times. However, productive and efficient utilization of a new generation of kW-class ultrashort pulsed lasers for precise nanostructuring requires a much higher number of beams. In this work, we introduce a unique combination of high-energy pulsed ultrashort laser system delivering up to 20 mJ at 1030 nm in 1.7 ps and novel Diffractive Laser-Induced Texturing element (DLITe) capable of producing 201 × 201 sub-beams of 5 µm in diameter on a square area of 1 mm2. Simultaneous nanostructuring with 40,401 sub-beams resulted in a matrix of microcraters covered by nanogratings and ripples with periodicity below 470 nm and 720 nm, respectively. The processed area demonstrated hydrophobic to superhydrophobic properties with a maximum contact angle of 153°. View Full-Text
Keywords: multi-beam processing; surface functionalization; superhydrophobicity; micromachining; diffractive optics; DOE multi-beam processing; surface functionalization; superhydrophobicity; micromachining; diffractive optics; DOE
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MDPI and ACS Style

Hauschwitz, P.; Bičštová, R.; Brodsky, A.; Kaplan, N.; Cimrman, M.; Huynh, J.; Brajer, J.; Rostohar, D.; Kopeček, J.; Smrž, M.; Mocek, T. Towards Rapid Fabrication of Superhydrophobic Surfaces by Multi-Beam Nanostructuring with 40,401 Beams. Nanomaterials 2021, 11, 1987. https://doi.org/10.3390/nano11081987

AMA Style

Hauschwitz P, Bičštová R, Brodsky A, Kaplan N, Cimrman M, Huynh J, Brajer J, Rostohar D, Kopeček J, Smrž M, Mocek T. Towards Rapid Fabrication of Superhydrophobic Surfaces by Multi-Beam Nanostructuring with 40,401 Beams. Nanomaterials. 2021; 11(8):1987. https://doi.org/10.3390/nano11081987

Chicago/Turabian Style

Hauschwitz, Petr, Radka Bičštová, Alexander Brodsky, Natan Kaplan, Martin Cimrman, Jaroslav Huynh, Jan Brajer, Danijela Rostohar, Jaromír Kopeček, Martin Smrž, and Tomáš Mocek. 2021. "Towards Rapid Fabrication of Superhydrophobic Surfaces by Multi-Beam Nanostructuring with 40,401 Beams" Nanomaterials 11, no. 8: 1987. https://doi.org/10.3390/nano11081987

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