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Large-beam picosecond interference patterning of metallic substrates
- 1.0534162 - FZÚ 2021 RIV CH eng J - Journal Article
Hauschwitz, Petr - Jochcová, D. - Jagdheesh, Radhakrishnan - Cimrman, Martin - Brajer, Jan - Rostohar, Danijela - Mocek, Tomáš - Kopeček, Jaromír - Lucianetti, Antonio - Smrž, Martin
Large-beam picosecond interference patterning of metallic substrates.
Materials. Roč. 13, č. 20 (2020), s. 1-11, č. článku 4676. E-ISSN 1996-1944
R&D Projects: GA MŠMT EF15_006/0000674; GA MŠMT LO1602
EU Projects: European Commission(XE) 739573 - HiLASE CoE
Grant - others:OP VVV - HiLASE-CoE(XE) CZ.02.1.01/0.0/0.0/15_006/0000674
Institutional support: RVO:68378271
Keywords : Perla laser * interference patterning * LIPSS * superhydrophobicity
OECD category: Optics (including laser optics and quantum optics)
Impact factor: 3.623, year: 2020
Method of publishing: Open access
In this paper, we introduce a method to efficiently use a high-energy pulsed 1.7 ps HiLASE Perla laser system for two beam interference patterning. The newly developed method of large-beam interference patterning permits the production of micro and sub-micron sized features on a treated surface with increased processing throughputs by enlarging the interference area. The limits for beam enlarging are explained and calculated for the used laser source. The formation of a variety of surface micro and nanostructures and their combinations are reported on stainless steel, invar, and tungsten with the maximum fabrication speed of 206 cm2/min. The wettability of selected hierarchical structures combining interference patterns with 2.6 µm periodicity and the nanoscale surface structures on top were analyzed showing superhydrophobic behavior with contact angles of 164°, 156°, and 150° in the case of stainless steel, invar, and tungsten, respectively
Permanent Link: http://hdl.handle.net/11104/0312392
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Number of the records: 1