TY  - JOUR
AU  - Gaković, Biljana
AU  - Zamfirescu, Marian
AU  - Panjan, Peter
AU  - Luculescu, Catalin Romeo
AU  - Albu, Catalina
AU  - Petrović, Suzana
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12713
AB  - The study of ablation and the laser-induced periodic surface structure (LIPSS) creation during the static and dynamic ultrafast laser (UFL) processing of the Al2O3/TiAlN protective coating is reported. The static irradiation was done with 10 successive pulses while scanning irradiation was performed with sample scanning. The laser ablation was studied by analysis of the surface morphology and elemental composition. The selective ablations manifest as circular craters or lines/micro-channels. The borders are very sharp without debris and hydrodynamic features. LIPSSs were formed at the bottoms of craters and microchannels. The periodicity of the created LIPSSs has shown a trend of increase with the pulse energy. Depending on the applied laser fuence the elemental composition in the centre of the craters confrmed the complete removal of the Al2O3 layer and partial ablation of the second TiAlN. The Al2O3 layer and part of TiAlN were ablated in micro-channels too.
T2  - Optical and Quantum Electronics
T1  - Laser ablation and LIPSS formation at static and dynamic multi-pulse regime on protective Al2O3/TiAlN coating
VL  - 56
IS  - 4
DO  - 10.1007/s11082-023-06238-x
ER  - 

@article{
author = "Gaković, Biljana and Zamfirescu, Marian and Panjan, Peter and Luculescu, Catalin Romeo and Albu, Catalina and Petrović, Suzana",
year = "2024",
abstract = "The study of ablation and the laser-induced periodic surface structure (LIPSS) creation during the static and dynamic ultrafast laser (UFL) processing of the Al2O3/TiAlN protective coating is reported. The static irradiation was done with 10 successive pulses while scanning irradiation was performed with sample scanning. The laser ablation was studied by analysis of the surface morphology and elemental composition. The selective ablations manifest as circular craters or lines/micro-channels. The borders are very sharp without debris and hydrodynamic features. LIPSSs were formed at the bottoms of craters and microchannels. The periodicity of the created LIPSSs has shown a trend of increase with the pulse energy. Depending on the applied laser fuence the elemental composition in the centre of the craters confrmed the complete removal of the Al2O3 layer and partial ablation of the second TiAlN. The Al2O3 layer and part of TiAlN were ablated in micro-channels too.",
journal = "Optical and Quantum Electronics",
title = "Laser ablation and LIPSS formation at static and dynamic multi-pulse regime on protective Al2O3/TiAlN coating",
volume = "56",
number = "4",
doi = "10.1007/s11082-023-06238-x"
}

Gaković, B., Zamfirescu, M., Panjan, P., Luculescu, C. R., Albu, C.,& Petrović, S.. (2024). Laser ablation and LIPSS formation at static and dynamic multi-pulse regime on protective Al2O3/TiAlN coating. in Optical and Quantum Electronics, 56(4).
https://doi.org/10.1007/s11082-023-06238-x

Gaković B, Zamfirescu M, Panjan P, Luculescu CR, Albu C, Petrović S. Laser ablation and LIPSS formation at static and dynamic multi-pulse regime on protective Al2O3/TiAlN coating. in Optical and Quantum Electronics. 2024;56(4).
doi:10.1007/s11082-023-06238-x .

Gaković, Biljana, Zamfirescu, Marian, Panjan, Peter, Luculescu, Catalin Romeo, Albu, Catalina, Petrović, Suzana, "Laser ablation and LIPSS formation at static and dynamic multi-pulse regime on protective Al2O3/TiAlN coating" in Optical and Quantum Electronics, 56, no. 4 (2024),
https://doi.org/10.1007/s11082-023-06238-x . .

TY  - JOUR
AU  - Milovanović, Dubravka S.
AU  - Rajčić, Boris
AU  - Petronić, Sanja
AU  - Radulović, Aleksandra
AU  - Radak, Bojan
AU  - Gaković, Biljana M.
AU  - Zamfirescu, Marian
AU  - Albu, Catalina
AU  - Savović, Jelena
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10116
AB  - The surface of a titanium-based alloy Ti6Al4V was subjected to modifications by a near-IR femtosecond Ti:Sapphire laser, emitting at 775 nm pulses of 200 fs duration, in single-pulse and multi-pulse regimes, with up to 400 accumulated pulses, and pulse energies ranging from 2.5 to 250 $$\upmu $$J. The whole range of induced effects is presented, from gentle ablation and pattern occurrence to substantial crater formation. Very observable laser-induced parallel periodic surface structures are reported, appearing both within the damage spot area, with low fluences, and at the peripheries of the craters, with higher fluences—but also on crater walls, and inside the crater structures. Damage threshold fluences $$({F}_{\mathrm{th}})$$and the incubation factor $$(\zeta )$$were also determined.
T2  - European Physical Journal D. Atoms, Molecules, Clusters and Optical Physics
T1  - Comprehensive ablation study of near-IR femtosecond laser action on the titanium-based alloy Ti6Al4V: morphological effects and surface structures at low and high fluences
VL  - 76
IS  - 1
SP  - 2
DO  - 10.1140/epjd/s10053-021-00308-z
ER  - 

@article{
author = "Milovanović, Dubravka S. and Rajčić, Boris and Petronić, Sanja and Radulović, Aleksandra and Radak, Bojan and Gaković, Biljana M. and Zamfirescu, Marian and Albu, Catalina and Savović, Jelena",
year = "2022",
abstract = "The surface of a titanium-based alloy Ti6Al4V was subjected to modifications by a near-IR femtosecond Ti:Sapphire laser, emitting at 775 nm pulses of 200 fs duration, in single-pulse and multi-pulse regimes, with up to 400 accumulated pulses, and pulse energies ranging from 2.5 to 250 $$\upmu $$J. The whole range of induced effects is presented, from gentle ablation and pattern occurrence to substantial crater formation. Very observable laser-induced parallel periodic surface structures are reported, appearing both within the damage spot area, with low fluences, and at the peripheries of the craters, with higher fluences—but also on crater walls, and inside the crater structures. Damage threshold fluences $$({F}_{\mathrm{th}})$$and the incubation factor $$(\zeta )$$were also determined.",
journal = "European Physical Journal D. Atoms, Molecules, Clusters and Optical Physics",
title = "Comprehensive ablation study of near-IR femtosecond laser action on the titanium-based alloy Ti6Al4V: morphological effects and surface structures at low and high fluences",
volume = "76",
number = "1",
pages = "2",
doi = "10.1140/epjd/s10053-021-00308-z"
}

Milovanović, D. S., Rajčić, B., Petronić, S., Radulović, A., Radak, B., Gaković, B. M., Zamfirescu, M., Albu, C.,& Savović, J.. (2022). Comprehensive ablation study of near-IR femtosecond laser action on the titanium-based alloy Ti6Al4V: morphological effects and surface structures at low and high fluences. in European Physical Journal D. Atoms, Molecules, Clusters and Optical Physics, 76(1), 2.
https://doi.org/10.1140/epjd/s10053-021-00308-z

Milovanović DS, Rajčić B, Petronić S, Radulović A, Radak B, Gaković BM, Zamfirescu M, Albu C, Savović J. Comprehensive ablation study of near-IR femtosecond laser action on the titanium-based alloy Ti6Al4V: morphological effects and surface structures at low and high fluences. in European Physical Journal D. Atoms, Molecules, Clusters and Optical Physics. 2022;76(1):2.
doi:10.1140/epjd/s10053-021-00308-z .

Milovanović, Dubravka S., Rajčić, Boris, Petronić, Sanja, Radulović, Aleksandra, Radak, Bojan, Gaković, Biljana M., Zamfirescu, Marian, Albu, Catalina, Savović, Jelena, "Comprehensive ablation study of near-IR femtosecond laser action on the titanium-based alloy Ti6Al4V: morphological effects and surface structures at low and high fluences" in European Physical Journal D. Atoms, Molecules, Clusters and Optical Physics, 76, no. 1 (2022):2,
https://doi.org/10.1140/epjd/s10053-021-00308-z . .