0505550 - FZÚ 2020 RIV US eng J - Článek v odborném periodiku
Kiel, F. - Bulgakova, Nadezhda M. - Ostendorf, A. - Gurevich, E.L.
Selective delamination upon femtosecond laser ablation of ceramic surfaces.
Physical Review Applied. Roč. 11, č. 2 (2019), s. 1-13, č. článku 024038. ISSN 2331-7019. E-ISSN 2331-7019
Grant CEP: GA MŠMT LO1602; GA MŠMT EF15_003/0000445; GA MŠMT EF15_006/0000674
Grant ostatní: OP VVV - BIATRI(XE) CZ.02.1.01/0.0/0.0/15_003/0000445; OP VVV - HiLASE-CoE(XE) CZ.02.1.01/0.0/0.0/15_006/0000674
Institucionální podpora: RVO:68378271
Klíčová slova: selective delamination of semitransparent materials * yttria-stabilized zirconia ceramics * femtosecond laser * surface ablation * delamination of a ceramics
Obor OECD: Optics (including laser optics and quantum optics)
Impakt faktor: 4.194, rok: 2019
Způsob publikování: Omezený přístup
https://doi.org/10.1103/physrevapplied.11.024038

We report on the experimental observation of selective delamination of semitransparent materials on the example of yttria-stabilized zirconia ceramics upon femtosecond laser processing of its surface with a low numerical aperture lens. The delamination of a ceramic layer of dozens of micrometers takes place as a side effect of surface processing and is observed above the surface ablation threshold. The onset of delamination (delamination threshold) depends on the degree of overlap of the irradiation spots from consecutive laser pulses upon beam scanning over material surface. Analysis of the delaminated layer indicates that the material undergoes melting on both of its surfaces. The mechanism of delamination is identified as a complex interplay between the optical response of laser-generated free-electron plasma and nonlinear effects upon laser beam propagation in semitransparent ceramics.
Trvalý link: http://hdl.handle.net/11104/0297030