TY  - CONF
AU  - Gaković, Biljana M.
AU  - Petrović, Suzana
AU  - Panjan, P.
AU  - Kovač, J.
AU  - Lazović, V.
AU  - Ristoscu, C.
AU  - Negut, I.
AU  - Mihailescu, I. N.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10945
AB  - The effects of UV nanosecond laser pulses on multilayer CrN/(Cr,V)N coatings were studied. In the experiment laser irradiation was performed in air at 248 nm wavelength and pulse duration of 25 ns. The surface composition and microstructure was analyzed depending on the initial content of vanadium in the coatings and number of accumulated laser pulses at a fluence of 0.17 Jcm-2 . Most of the absorbed laser energy was rapidly transformed into heat, producing intensive modifications of the composition and morphology of the multilayer structure.The result has shown that concentration of metallic components was homogeneously distributed inside the coatings. However, on the surface and in the sub-surface regions the contents of Cr and V were decreased due to oxidation. The composition and thickness of created mixture of oxides Cr2O3 and V2O5 depend on the number of laser pulses and initial V content. Laser induced surface morphology changes of the multilayer CrN/(Cr,V)N coatingswere registered at the irradiation areas: (i) grainy structures at peripheries, (ii) cracks and (iii) irregular closed shapes in the center.
PB  - Belgrade : Institute of Physics Belgrade
C3  - PHOTONICA2017 : 6th International School and Conference on Photonics and COST actions: MP1406 and MP1402 : Program and the book of abstracts
T1  - Effects of nanosecond laser pulses at 248 nm wavelength on multilayer CrN/(Cr,V)N coatings
SP  - 174
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10945
ER  - 

@conference{
author = "Gaković, Biljana M. and Petrović, Suzana and Panjan, P. and Kovač, J. and Lazović, V. and Ristoscu, C. and Negut, I. and Mihailescu, I. N.",
year = "2017",
abstract = "The effects of UV nanosecond laser pulses on multilayer CrN/(Cr,V)N coatings were studied. In the experiment laser irradiation was performed in air at 248 nm wavelength and pulse duration of 25 ns. The surface composition and microstructure was analyzed depending on the initial content of vanadium in the coatings and number of accumulated laser pulses at a fluence of 0.17 Jcm-2 . Most of the absorbed laser energy was rapidly transformed into heat, producing intensive modifications of the composition and morphology of the multilayer structure.The result has shown that concentration of metallic components was homogeneously distributed inside the coatings. However, on the surface and in the sub-surface regions the contents of Cr and V were decreased due to oxidation. The composition and thickness of created mixture of oxides Cr2O3 and V2O5 depend on the number of laser pulses and initial V content. Laser induced surface morphology changes of the multilayer CrN/(Cr,V)N coatingswere registered at the irradiation areas: (i) grainy structures at peripheries, (ii) cracks and (iii) irregular closed shapes in the center.",
publisher = "Belgrade : Institute of Physics Belgrade",
journal = "PHOTONICA2017 : 6th International School and Conference on Photonics and COST actions: MP1406 and MP1402 : Program and the book of abstracts",
title = "Effects of nanosecond laser pulses at 248 nm wavelength on multilayer CrN/(Cr,V)N coatings",
pages = "174",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10945"
}

Gaković, B. M., Petrović, S., Panjan, P., Kovač, J., Lazović, V., Ristoscu, C., Negut, I.,& Mihailescu, I. N.. (2017). Effects of nanosecond laser pulses at 248 nm wavelength on multilayer CrN/(Cr,V)N coatings. in PHOTONICA2017 : 6th International School and Conference on Photonics and COST actions: MP1406 and MP1402 : Program and the book of abstracts
Belgrade : Institute of Physics Belgrade., 174.
https://hdl.handle.net/21.15107/rcub_vinar_10945

Gaković BM, Petrović S, Panjan P, Kovač J, Lazović V, Ristoscu C, Negut I, Mihailescu IN. Effects of nanosecond laser pulses at 248 nm wavelength on multilayer CrN/(Cr,V)N coatings. in PHOTONICA2017 : 6th International School and Conference on Photonics and COST actions: MP1406 and MP1402 : Program and the book of abstracts. 2017;:174.
https://hdl.handle.net/21.15107/rcub_vinar_10945 .

Gaković, Biljana M., Petrović, Suzana, Panjan, P., Kovač, J., Lazović, V., Ristoscu, C., Negut, I., Mihailescu, I. N., "Effects of nanosecond laser pulses at 248 nm wavelength on multilayer CrN/(Cr,V)N coatings" in PHOTONICA2017 : 6th International School and Conference on Photonics and COST actions: MP1406 and MP1402 : Program and the book of abstracts (2017):174,
https://hdl.handle.net/21.15107/rcub_vinar_10945 .

TY  - CONF
AU  - Gaković, Biljana M.
AU  - Radak, B.
AU  - Radu, C.
AU  - Zamfirescu, M.
AU  - Trtica, Milan
AU  - Petrović, S.
AU  - Stašić, Jelena
AU  - Panjan, P.
AU  - Mihailescu, I.
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12455
AB  - For material processing one of the main advantages of using ultra short laser pulses, comparing to long pulses, is the highly localized modification. Ultra short pulse laser modification of materials is valuable for their application in nanotechnology, tribology, microelectronics, medical application, etc. In this paper, special attention is paid to experimental investigations of femtosecond laser surface modification of hard protective coating. The sample has been processed by a Ti:sapphire laser with pulse duration of 200 fs and wavelength of 775 nm. Single and multi pulse irradiation were performed in air. Various analytical techniques were used for characterization. The damage threshold for the examined coating, irradiated by 200 fs pulses, was determined.
PB  - Minsk : National Academy of Sciences of Belarus; B.I. Stepanov Institute of Physics
C3  - IX Belarusian-Serbian Symposium "Physics and Diagnostics of Laboratory and Astrophysical Plasmas" (РDР-9) : Proceedings
T1  - Laser ablation and structuring of hard coating with ultra-short laser pulses
SP  - 13
EP  - 16
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12455
ER  - 

@conference{
author = "Gaković, Biljana M. and Radak, B. and Radu, C. and Zamfirescu, M. and Trtica, Milan and Petrović, S. and Stašić, Jelena and Panjan, P. and Mihailescu, I.",
year = "2012",
abstract = "For material processing one of the main advantages of using ultra short laser pulses, comparing to long pulses, is the highly localized modification. Ultra short pulse laser modification of materials is valuable for their application in nanotechnology, tribology, microelectronics, medical application, etc. In this paper, special attention is paid to experimental investigations of femtosecond laser surface modification of hard protective coating. The sample has been processed by a Ti:sapphire laser with pulse duration of 200 fs and wavelength of 775 nm. Single and multi pulse irradiation were performed in air. Various analytical techniques were used for characterization. The damage threshold for the examined coating, irradiated by 200 fs pulses, was determined.",
publisher = "Minsk : National Academy of Sciences of Belarus; B.I. Stepanov Institute of Physics",
journal = "IX Belarusian-Serbian Symposium "Physics and Diagnostics of Laboratory and Astrophysical Plasmas" (РDР-9) : Proceedings",
title = "Laser ablation and structuring of hard coating with ultra-short laser pulses",
pages = "13-16",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12455"
}

Gaković, B. M., Radak, B., Radu, C., Zamfirescu, M., Trtica, M., Petrović, S., Stašić, J., Panjan, P.,& Mihailescu, I.. (2012). Laser ablation and structuring of hard coating with ultra-short laser pulses. in IX Belarusian-Serbian Symposium "Physics and Diagnostics of Laboratory and Astrophysical Plasmas" (РDР-9) : Proceedings
Minsk : National Academy of Sciences of Belarus; B.I. Stepanov Institute of Physics., 13-16.
https://hdl.handle.net/21.15107/rcub_vinar_12455

Gaković BM, Radak B, Radu C, Zamfirescu M, Trtica M, Petrović S, Stašić J, Panjan P, Mihailescu I. Laser ablation and structuring of hard coating with ultra-short laser pulses. in IX Belarusian-Serbian Symposium "Physics and Diagnostics of Laboratory and Astrophysical Plasmas" (РDР-9) : Proceedings. 2012;:13-16.
https://hdl.handle.net/21.15107/rcub_vinar_12455 .

Gaković, Biljana M., Radak, B., Radu, C., Zamfirescu, M., Trtica, Milan, Petrović, S., Stašić, Jelena, Panjan, P., Mihailescu, I., "Laser ablation and structuring of hard coating with ultra-short laser pulses" in IX Belarusian-Serbian Symposium "Physics and Diagnostics of Laboratory and Astrophysical Plasmas" (РDР-9) : Proceedings (2012):13-16,
https://hdl.handle.net/21.15107/rcub_vinar_12455 .

TY  - CONF
AU  - Gaković, Biljana M.
AU  - Radu, C.
AU  - Zamfirescu, M.
AU  - Radak, Bojan
AU  - Trtica, Milan
AU  - Petrović, S.
AU  - Stašić, J.
AU  - Čekada, M.
AU  - Mihailescu, I. N.
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10980
PB  - Belgrade : Vinča Institute of Nuclear Sciences
C3  - PHOTONICA2011 : 3rd International School and Conference on Photonics : book of abstracts; August 29- September 2, 2011; Belgrade
T1  - Femtosecond laser ablation of alumina (Al2O3) from a multilayered coating
SP  - 154
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10980
ER  - 

@conference{
author = "Gaković, Biljana M. and Radu, C. and Zamfirescu, M. and Radak, Bojan and Trtica, Milan and Petrović, S. and Stašić, J. and Čekada, M. and Mihailescu, I. N.",
year = "2011",
publisher = "Belgrade : Vinča Institute of Nuclear Sciences",
journal = "PHOTONICA2011 : 3rd International School and Conference on Photonics : book of abstracts; August 29- September 2, 2011; Belgrade",
title = "Femtosecond laser ablation of alumina (Al2O3) from a multilayered coating",
pages = "154",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10980"
}

Gaković, B. M., Radu, C., Zamfirescu, M., Radak, B., Trtica, M., Petrović, S., Stašić, J., Čekada, M.,& Mihailescu, I. N.. (2011). Femtosecond laser ablation of alumina (Al2O3) from a multilayered coating. in PHOTONICA2011 : 3rd International School and Conference on Photonics : book of abstracts; August 29- September 2, 2011; Belgrade
Belgrade : Vinča Institute of Nuclear Sciences., 154.
https://hdl.handle.net/21.15107/rcub_vinar_10980

Gaković BM, Radu C, Zamfirescu M, Radak B, Trtica M, Petrović S, Stašić J, Čekada M, Mihailescu IN. Femtosecond laser ablation of alumina (Al2O3) from a multilayered coating. in PHOTONICA2011 : 3rd International School and Conference on Photonics : book of abstracts; August 29- September 2, 2011; Belgrade. 2011;:154.
https://hdl.handle.net/21.15107/rcub_vinar_10980 .

Gaković, Biljana M., Radu, C., Zamfirescu, M., Radak, Bojan, Trtica, Milan, Petrović, S., Stašić, J., Čekada, M., Mihailescu, I. N., "Femtosecond laser ablation of alumina (Al2O3) from a multilayered coating" in PHOTONICA2011 : 3rd International School and Conference on Photonics : book of abstracts; August 29- September 2, 2011; Belgrade (2011):154,
https://hdl.handle.net/21.15107/rcub_vinar_10980 .