High-speed manufacturing of highly regular femtosecond laser-induced periodic surface structures: physical origin of regularity

0492747 - FZÚ 2019 RIV GB eng J - Journal Article
Gnilitskyi, I. - Derrien, Thibault - Levy, Yoann - Bulgakova, Nadezhda M. - Mocek, Tomáš - Orazi, L.
High-speed manufacturing of highly regular femtosecond laser-induced periodic surface structures: physical origin of regularity.
Scientific Reports. Roč. 7, Aug (2017), s. 1-15, č. článku 8485. ISSN 2045-2322. E-ISSN 2045-2322
R&D Projects: GA MŠMT LO1602; GA ČR GA16-12960S; GA MŠMT EF15_003/0000445
EU Projects: European Commission(XE) 657424 - QuantumLaP
Grant - others:OP VVV - BIATRI(XE) CZ.02.1.01/0.0/0.0/15_003/0000445
Institutional support: RVO:68378271
Keywords : surface nanostructuring * ultrashort-pulse laser * plasmon-polaritons * metal surfaces * surface scattered electromagnetic waves
OECD category: Optics (including laser optics and quantum optics)
Impact factor: 4.122, year: 2017

Highly regular laser-induced periodic surface structures (HR-LIPSS) have been fabricated on surfaces of Mo, steel alloy and Ti at a record processing speed on large areas and with a record regularity in the obtained sub-wavelength structures. The physical mechanisms governing LIPSS regularity are identified and linked with the decay length (i.e. the mean free path) of the excited surface electromagnetic waves (SEWs). The dispersion of the LIPSS orientation angle well correlates with the SEWs decay length: the shorter this length, the more regular are the LIPSS.
Permanent Link: http://hdl.handle.net/11104/0286126