TY  - JOUR
AU  - Trtica, Milan
AU  - Savović, Jelena
AU  - Kuzmanović, M.
AU  - Ranković, D.
AU  - Stašić, Jelena
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12052
AB  - The aspect of the detection of hydrogen isotopes in nuclear materials was analyzed in this review. Particular attention was paid to the spectroscopic methods for the detection of hydrogen isotopes in fusion reactor materials since their presence can induce severe problems in terms of material degradation and shortening of its lifetime. The main focus is on laser-induced breakdown spectroscopy, an optical emission method that is efficient, reliable, and fast. Recent results obtained at the VINCA Institute will also be presented.
T2  - Journal of Applied Spectroscopy
T1  - LIBS Hydrogen Isotopes Detection: Significance in Nuclear/Fusion Technology
VL  - 90
VL  - 90
IS  - 6
SP  - 1318
EP  - 1324
DO  - 10.1007/s10812-024-01669-0
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12052
ER  - 

@article{
author = "Trtica, Milan and Savović, Jelena and Kuzmanović, M. and Ranković, D. and Stašić, Jelena",
year = "2024",
abstract = "The aspect of the detection of hydrogen isotopes in nuclear materials was analyzed in this review. Particular attention was paid to the spectroscopic methods for the detection of hydrogen isotopes in fusion reactor materials since their presence can induce severe problems in terms of material degradation and shortening of its lifetime. The main focus is on laser-induced breakdown spectroscopy, an optical emission method that is efficient, reliable, and fast. Recent results obtained at the VINCA Institute will also be presented.",
journal = "Journal of Applied Spectroscopy",
title = "LIBS Hydrogen Isotopes Detection: Significance in Nuclear/Fusion Technology",
volume = "90, 90",
number = "6",
pages = "1318-1324",
doi = "10.1007/s10812-024-01669-0",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12052"
}

Trtica, M., Savović, J., Kuzmanović, M., Ranković, D.,& Stašić, J.. (2024). LIBS Hydrogen Isotopes Detection: Significance in Nuclear/Fusion Technology. in Journal of Applied Spectroscopy, 90(6), 1318-1324.
https://doi.org/10.1007/s10812-024-01669-0
https://hdl.handle.net/21.15107/rcub_vinar_12052

Trtica M, Savović J, Kuzmanović M, Ranković D, Stašić J. LIBS Hydrogen Isotopes Detection: Significance in Nuclear/Fusion Technology. in Journal of Applied Spectroscopy. 2024;90(6):1318-1324.
doi:10.1007/s10812-024-01669-0
https://hdl.handle.net/21.15107/rcub_vinar_12052 .

Trtica, Milan, Savović, Jelena, Kuzmanović, M., Ranković, D., Stašić, Jelena, "LIBS Hydrogen Isotopes Detection: Significance in Nuclear/Fusion Technology" in Journal of Applied Spectroscopy, 90, no. 6 (2024):1318-1324,
https://doi.org/10.1007/s10812-024-01669-0 .,
https://hdl.handle.net/21.15107/rcub_vinar_12052 .

TY  - CONF
AU  - Stašić, Jelena
AU  - Trtica, Milan
AU  - Kuzmanović, M.
AU  - Savović, Jelena
AU  - Ružić, Jovana
AU  - Simić, M.
AU  - Chen, X.
AU  - Božić, Dušan
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11820
AB  - Austenitic stainless steel 316L finds a number of applications including filtration technology, nuclear industry, biomedicine, etc. Powder metallurgy (PM) allows obtaining the desired structure of the material, from full density to highly porous one, and PM technology most often comprises pressing and sintering steps. Gravity sintering, applied in this work, i.e. liquid phase sintering where the pressing step is excluded, is enabled by adding small amount of boron or its compound [1]. The addition of NiB lowers the sintering temperature by formation of eutectics (liquid phase), and also enhances mechanical properties (tensile strength, hardness) and corrosion resistance of 316L steel [2]. The aim of this work was to examine the surface behavior of PM-obtained 316L-NiB exposed to conditions of high heat fluxes by employing nanosecond laser pulses (TEA CO2 laser emitting at 10.6 μm, fluence ~14 J/cm2, intensity ~40 MW/cm2), which is reported scarcely in literature [3]. Simultaneously with irradiation in vacuum, plasma formed by laser irradiation above the sample surface was analyzed using LIBS (Laser Induced Breakdown Spectroscopy). Namely, small amount of boron (1 wt.% of NiB contains 83 wt.% of Ni and 17 wt.% of B) is not easily detected in gravity sintered sample and one of the techniques of choice could be the LIBS. For comparison purposes, 316L sample wihout NiB was also examined. Laser-irradiated surfaces were analyzed using SEM connected to EDX device. The damage was superficial, with intense melting in the central part of the irradiated spot, Fig. 1(a). LIBS analysis, Fig. 1(b), has shown successful in detecting the presence of boron in the 316L-NiB stainless steel, with low estimated limit of detection of 32 ppm.
PB  - Belgrade : Vinča Institute of Nuclear Sciences
C3  - PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade
T1  - Interaction of ns laser with 316L-NiB stainless steel obtained by powder metallurgy – morphological effects and LIBS analysis
SP  - 124
EP  - 124
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11820
ER  - 

@conference{
author = "Stašić, Jelena and Trtica, Milan and Kuzmanović, M. and Savović, Jelena and Ružić, Jovana and Simić, M. and Chen, X. and Božić, Dušan",
year = "2023",
abstract = "Austenitic stainless steel 316L finds a number of applications including filtration technology, nuclear industry, biomedicine, etc. Powder metallurgy (PM) allows obtaining the desired structure of the material, from full density to highly porous one, and PM technology most often comprises pressing and sintering steps. Gravity sintering, applied in this work, i.e. liquid phase sintering where the pressing step is excluded, is enabled by adding small amount of boron or its compound [1]. The addition of NiB lowers the sintering temperature by formation of eutectics (liquid phase), and also enhances mechanical properties (tensile strength, hardness) and corrosion resistance of 316L steel [2]. The aim of this work was to examine the surface behavior of PM-obtained 316L-NiB exposed to conditions of high heat fluxes by employing nanosecond laser pulses (TEA CO2 laser emitting at 10.6 μm, fluence ~14 J/cm2, intensity ~40 MW/cm2), which is reported scarcely in literature [3]. Simultaneously with irradiation in vacuum, plasma formed by laser irradiation above the sample surface was analyzed using LIBS (Laser Induced Breakdown Spectroscopy). Namely, small amount of boron (1 wt.% of NiB contains 83 wt.% of Ni and 17 wt.% of B) is not easily detected in gravity sintered sample and one of the techniques of choice could be the LIBS. For comparison purposes, 316L sample wihout NiB was also examined. Laser-irradiated surfaces were analyzed using SEM connected to EDX device. The damage was superficial, with intense melting in the central part of the irradiated spot, Fig. 1(a). LIBS analysis, Fig. 1(b), has shown successful in detecting the presence of boron in the 316L-NiB stainless steel, with low estimated limit of detection of 32 ppm.",
publisher = "Belgrade : Vinča Institute of Nuclear Sciences",
journal = "PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade",
title = "Interaction of ns laser with 316L-NiB stainless steel obtained by powder metallurgy – morphological effects and LIBS analysis",
pages = "124-124",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11820"
}

Stašić, J., Trtica, M., Kuzmanović, M., Savović, J., Ružić, J., Simić, M., Chen, X.,& Božić, D.. (2023). Interaction of ns laser with 316L-NiB stainless steel obtained by powder metallurgy – morphological effects and LIBS analysis. in PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade
Belgrade : Vinča Institute of Nuclear Sciences., 124-124.
https://hdl.handle.net/21.15107/rcub_vinar_11820

Stašić J, Trtica M, Kuzmanović M, Savović J, Ružić J, Simić M, Chen X, Božić D. Interaction of ns laser with 316L-NiB stainless steel obtained by powder metallurgy – morphological effects and LIBS analysis. in PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade. 2023;:124-124.
https://hdl.handle.net/21.15107/rcub_vinar_11820 .

Stašić, Jelena, Trtica, Milan, Kuzmanović, M., Savović, Jelena, Ružić, Jovana, Simić, M., Chen, X., Božić, Dušan, "Interaction of ns laser with 316L-NiB stainless steel obtained by powder metallurgy – morphological effects and LIBS analysis" in PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade (2023):124-124,
https://hdl.handle.net/21.15107/rcub_vinar_11820 .

TY  - JOUR
AU  - Trtica, Milan
AU  - Stašić, Jelena
AU  - Chen, Xizhang
AU  - Limpouch, Jiri
AU  - Gavrilov, Petr
AU  - Zekić, Andrijana
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10868
AB  - Behavior of ODS steel under high energy fluxes is important as it is one of the most promising fusion reactor materials. The addition of hafnium provides improved microstructure and therefore better mechanical properties at high temperatures, and the goal here was to investigate the effects induced on Hf-containing ODS steel by the action of high-intensity ∼1015 W/cm2 radiation obtained by ultrashort pulsed laser. Morphological and chemical parametric study of the surface was conducted at different work ambiences. New data were obtained on damage parameters, threshold fluences and chemical changes. Measured damage depths were ∼7.5 μm (air), ∼14 μm (helium), ∼48 μm (vacuum), which is somewhat lower compared to ODS steel without the addition of hafnium.
T2  - Fusion Engineering and Design
T1  - 16Cr3Al-Hf ODS steel: Surface effects of high laser intensity of 1015 W/cm2 in ambiences of air, helium and vacuum
VL  - 191
SP  - 113766
DO  - 10.1016/j.fusengdes.2023.113766
ER  - 

@article{
author = "Trtica, Milan and Stašić, Jelena and Chen, Xizhang and Limpouch, Jiri and Gavrilov, Petr and Zekić, Andrijana",
year = "2023",
abstract = "Behavior of ODS steel under high energy fluxes is important as it is one of the most promising fusion reactor materials. The addition of hafnium provides improved microstructure and therefore better mechanical properties at high temperatures, and the goal here was to investigate the effects induced on Hf-containing ODS steel by the action of high-intensity ∼1015 W/cm2 radiation obtained by ultrashort pulsed laser. Morphological and chemical parametric study of the surface was conducted at different work ambiences. New data were obtained on damage parameters, threshold fluences and chemical changes. Measured damage depths were ∼7.5 μm (air), ∼14 μm (helium), ∼48 μm (vacuum), which is somewhat lower compared to ODS steel without the addition of hafnium.",
journal = "Fusion Engineering and Design",
title = "16Cr3Al-Hf ODS steel: Surface effects of high laser intensity of 1015 W/cm2 in ambiences of air, helium and vacuum",
volume = "191",
pages = "113766",
doi = "10.1016/j.fusengdes.2023.113766"
}

Trtica, M., Stašić, J., Chen, X., Limpouch, J., Gavrilov, P.,& Zekić, A.. (2023). 16Cr3Al-Hf ODS steel: Surface effects of high laser intensity of 1015 W/cm2 in ambiences of air, helium and vacuum. in Fusion Engineering and Design, 191, 113766.
https://doi.org/10.1016/j.fusengdes.2023.113766

Trtica M, Stašić J, Chen X, Limpouch J, Gavrilov P, Zekić A. 16Cr3Al-Hf ODS steel: Surface effects of high laser intensity of 1015 W/cm2 in ambiences of air, helium and vacuum. in Fusion Engineering and Design. 2023;191:113766.
doi:10.1016/j.fusengdes.2023.113766 .

Trtica, Milan, Stašić, Jelena, Chen, Xizhang, Limpouch, Jiri, Gavrilov, Petr, Zekić, Andrijana, "16Cr3Al-Hf ODS steel: Surface effects of high laser intensity of 1015 W/cm2 in ambiences of air, helium and vacuum" in Fusion Engineering and Design, 191 (2023):113766,
https://doi.org/10.1016/j.fusengdes.2023.113766 . .

TY  - JOUR
AU  - Trtica, Milan
AU  - Stašić, Jelena
AU  - Chen, Xizhang
AU  - Limpouch, Jiri
AU  - Zekić, Andrijana
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11725
AB  - Ferritic 16Cr3Al ODS steel, with and without the addition of hafnium, was exposed to high-intensity laser radiation of the order of 1013 W/cm2. Irradiation was conducted in the environments of helium and vacuum and the obtained surface effects were observed in the sense of morphology and chemical changes. This class of steels is being developed primarily for structural applications in nuclear reactors, which is why their behavior under harsh conditions, including high power densities, is of utmost importance. The obtained results show mostly superficial changes even at a high number of pulses, which points toward the successful implementation of these materials in a number of applications involving severe work conditions.
T2  - Journal of Innovative Materials in Extreme Conditions
T1  - Effects of Laser Radiation at 10 13 W/cm2 Intensity on Ferritic ODS Steel With and Without Hf in Helium and Vacuum
VL  - 4
IS  - 1
SP  - 1
EP  - 9
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11725
ER  - 

@article{
author = "Trtica, Milan and Stašić, Jelena and Chen, Xizhang and Limpouch, Jiri and Zekić, Andrijana",
year = "2023",
abstract = "Ferritic 16Cr3Al ODS steel, with and without the addition of hafnium, was exposed to high-intensity laser radiation of the order of 1013 W/cm2. Irradiation was conducted in the environments of helium and vacuum and the obtained surface effects were observed in the sense of morphology and chemical changes. This class of steels is being developed primarily for structural applications in nuclear reactors, which is why their behavior under harsh conditions, including high power densities, is of utmost importance. The obtained results show mostly superficial changes even at a high number of pulses, which points toward the successful implementation of these materials in a number of applications involving severe work conditions.",
journal = "Journal of Innovative Materials in Extreme Conditions",
title = "Effects of Laser Radiation at 10 13 W/cm2 Intensity on Ferritic ODS Steel With and Without Hf in Helium and Vacuum",
volume = "4",
number = "1",
pages = "1-9",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11725"
}

Trtica, M., Stašić, J., Chen, X., Limpouch, J.,& Zekić, A.. (2023). Effects of Laser Radiation at 10 13 W/cm2 Intensity on Ferritic ODS Steel With and Without Hf in Helium and Vacuum. in Journal of Innovative Materials in Extreme Conditions, 4(1), 1-9.
https://hdl.handle.net/21.15107/rcub_vinar_11725

Trtica M, Stašić J, Chen X, Limpouch J, Zekić A. Effects of Laser Radiation at 10 13 W/cm2 Intensity on Ferritic ODS Steel With and Without Hf in Helium and Vacuum. in Journal of Innovative Materials in Extreme Conditions. 2023;4(1):1-9.
https://hdl.handle.net/21.15107/rcub_vinar_11725 .

Trtica, Milan, Stašić, Jelena, Chen, Xizhang, Limpouch, Jiri, Zekić, Andrijana, "Effects of Laser Radiation at 10 13 W/cm2 Intensity on Ferritic ODS Steel With and Without Hf in Helium and Vacuum" in Journal of Innovative Materials in Extreme Conditions, 4, no. 1 (2023):1-9,
https://hdl.handle.net/21.15107/rcub_vinar_11725 .

TY  - CONF
AU  - Trtica, Milan
AU  - Stašić, Jelena
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11821
AB  - Interaction of a pulsed, ns-laser operating at 10.6 μm with a titanium target in hydrogen ambience was studied. In general, interaction in this type of environment is scarcely studied; however it can be of great importance. Titanium and its alloys show excellent physical and chemical properties and for these reasons they are attractive for aero-space and marine engineering, medicine, nuclear problematics, etc. Some phenomena, especially the action of thermal flux on a material, within fission/fusion reactor for example, can be simulated by ns-laser [1,2]. The Ti-surface variations at high TEA CO2 laser energy density/fluence of ~20 J/cm2 and intensity of ~60 MW/cm2 were investigated in this work. Irradiation was carried out at a reduced H2 atmosphere of ~200 mbar [3]. The energy absorbed from the laser beam is partially converted to thermal energy, which generates a series of effects, such as melting, vaporization of the molten material, shock waves, etc. Also, it should be mentioned that irradiation was accompanied by generation of plasma in front of the target. The following titanium target surface changes and phenomena were observed: (i) the damages were only on a superficial level (Fig. 1B) with depth ≤ 2 μm; (ii) appearance of pores on the grain boundaries in the central irradiated zone (Fig. 1A). The cracking effect is visible as well in this zone. In the main, all changes can be attributed to the extra-fast heating and cooling process; (iii) in the peripheral zones similar features were registered, while the transition between irradiated and non-irradiated region is sharp. It can be concluded from this study that the reported laser fluence and intensity, in hydrogen ambience, effectively modified the titanium target. The created surface structures generally could be acceptable in cases where high roughness is required, while for some applications in nuclear technologies additional studies should be done (in this context, the presence of H2 in fusion reactor materials is not desirable [3]).
PB  - Belgrade : Vinča Institute of Nuclear Sciences
C3  - PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade
T1  - ns-Laser – titanium interaction: hydrogen ambience
SP  - 125
EP  - 125
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11821
ER  - 

@conference{
author = "Trtica, Milan and Stašić, Jelena",
year = "2023",
abstract = "Interaction of a pulsed, ns-laser operating at 10.6 μm with a titanium target in hydrogen ambience was studied. In general, interaction in this type of environment is scarcely studied; however it can be of great importance. Titanium and its alloys show excellent physical and chemical properties and for these reasons they are attractive for aero-space and marine engineering, medicine, nuclear problematics, etc. Some phenomena, especially the action of thermal flux on a material, within fission/fusion reactor for example, can be simulated by ns-laser [1,2]. The Ti-surface variations at high TEA CO2 laser energy density/fluence of ~20 J/cm2 and intensity of ~60 MW/cm2 were investigated in this work. Irradiation was carried out at a reduced H2 atmosphere of ~200 mbar [3]. The energy absorbed from the laser beam is partially converted to thermal energy, which generates a series of effects, such as melting, vaporization of the molten material, shock waves, etc. Also, it should be mentioned that irradiation was accompanied by generation of plasma in front of the target. The following titanium target surface changes and phenomena were observed: (i) the damages were only on a superficial level (Fig. 1B) with depth ≤ 2 μm; (ii) appearance of pores on the grain boundaries in the central irradiated zone (Fig. 1A). The cracking effect is visible as well in this zone. In the main, all changes can be attributed to the extra-fast heating and cooling process; (iii) in the peripheral zones similar features were registered, while the transition between irradiated and non-irradiated region is sharp. It can be concluded from this study that the reported laser fluence and intensity, in hydrogen ambience, effectively modified the titanium target. The created surface structures generally could be acceptable in cases where high roughness is required, while for some applications in nuclear technologies additional studies should be done (in this context, the presence of H2 in fusion reactor materials is not desirable [3]).",
publisher = "Belgrade : Vinča Institute of Nuclear Sciences",
journal = "PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade",
title = "ns-Laser – titanium interaction: hydrogen ambience",
pages = "125-125",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11821"
}

Trtica, M.,& Stašić, J.. (2023). ns-Laser – titanium interaction: hydrogen ambience. in PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade
Belgrade : Vinča Institute of Nuclear Sciences., 125-125.
https://hdl.handle.net/21.15107/rcub_vinar_11821

Trtica M, Stašić J. ns-Laser – titanium interaction: hydrogen ambience. in PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade. 2023;:125-125.
https://hdl.handle.net/21.15107/rcub_vinar_11821 .

Trtica, Milan, Stašić, Jelena, "ns-Laser – titanium interaction: hydrogen ambience" in PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade (2023):125-125,
https://hdl.handle.net/21.15107/rcub_vinar_11821 .

TY  - CONF
AU  - Ciganović, Jovan
AU  - Momčilović, Miloš
AU  - Živković, Sanja
AU  - Stašić, Jelena
AU  - Trtica, Milan
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12094
AB  - The interaction of lasers with metals has been studied for decades, and has been especially intensified lately, due to the development of new, efficient pulsed lasers. Titanium has a number of excellent properties, making it applicable in various modern technologies. Treatment and processing of titanium is possible with various techniques, and the application of lasers gives a special quality, such as high precision machining or obtaining specific structures on the surface which cannot be generated by other methods. During our research, surface processing of titanium was conducted by various pulsed lasers: nanosecond CO2 laser, picosecond Nd:YAG laser and femtosecond Ti: sapphire laser. In order to find the optimal conditions for surface modification of titanium, the influence of different laser parameters (wavelength, pulse duration, pulse energy, etc.), as well as the influence of the ambient, was examined. The titanium samples were irradiated in different environments, ie. in air, oxygen, nitrogen, carbon dioxide, helium and in vacuum, which affected the chemical composition and morphology of the target surface.
C3  - SPIG 2022 : 31st Summer School and International Symposium on the Physics of Ionized Gases : Contributed papers and abstracts
T1  - Action of pulsed lasers on titanium target: surface effects
VL  - 102
SP  - 77
EP  - 77
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12094
ER  - 

@conference{
author = "Ciganović, Jovan and Momčilović, Miloš and Živković, Sanja and Stašić, Jelena and Trtica, Milan",
year = "2022",
abstract = "The interaction of lasers with metals has been studied for decades, and has been especially intensified lately, due to the development of new, efficient pulsed lasers. Titanium has a number of excellent properties, making it applicable in various modern technologies. Treatment and processing of titanium is possible with various techniques, and the application of lasers gives a special quality, such as high precision machining or obtaining specific structures on the surface which cannot be generated by other methods. During our research, surface processing of titanium was conducted by various pulsed lasers: nanosecond CO2 laser, picosecond Nd:YAG laser and femtosecond Ti: sapphire laser. In order to find the optimal conditions for surface modification of titanium, the influence of different laser parameters (wavelength, pulse duration, pulse energy, etc.), as well as the influence of the ambient, was examined. The titanium samples were irradiated in different environments, ie. in air, oxygen, nitrogen, carbon dioxide, helium and in vacuum, which affected the chemical composition and morphology of the target surface.",
journal = "SPIG 2022 : 31st Summer School and International Symposium on the Physics of Ionized Gases : Contributed papers and abstracts",
title = "Action of pulsed lasers on titanium target: surface effects",
volume = "102",
pages = "77-77",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12094"
}

Ciganović, J., Momčilović, M., Živković, S., Stašić, J.,& Trtica, M.. (2022). Action of pulsed lasers on titanium target: surface effects. in SPIG 2022 : 31st Summer School and International Symposium on the Physics of Ionized Gases : Contributed papers and abstracts, 102, 77-77.
https://hdl.handle.net/21.15107/rcub_vinar_12094

Ciganović J, Momčilović M, Živković S, Stašić J, Trtica M. Action of pulsed lasers on titanium target: surface effects. in SPIG 2022 : 31st Summer School and International Symposium on the Physics of Ionized Gases : Contributed papers and abstracts. 2022;102:77-77.
https://hdl.handle.net/21.15107/rcub_vinar_12094 .

Ciganović, Jovan, Momčilović, Miloš, Živković, Sanja, Stašić, Jelena, Trtica, Milan, "Action of pulsed lasers on titanium target: surface effects" in SPIG 2022 : 31st Summer School and International Symposium on the Physics of Ionized Gases : Contributed papers and abstracts, 102 (2022):77-77,
https://hdl.handle.net/21.15107/rcub_vinar_12094 .

TY  - JOUR
AU  - Trtica, Milan
AU  - Kuzmanović, Miroslav M.
AU  - Savović, Jelena
AU  - Ranković, Dragan
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9972
AB  - The interaction of a Transversely Excited Atmospheric (TEA) CO2 laser with a polymer polymethyl methacrylate (PMMA) sample in a vacuum ambiance was studied. The main goal was to demonstrate the feasibility of laser-induced breakdown spectroscopy (LIBS) to detect hydrogen. The generation of plasma over the PMMA surface, using a low laser intensity of ∼ 48 MW/cm2 and fluence of ∼ 16.5 J/cm2, required the application of a metal sub-target. Besides hydrogen, the recorded spectra were dominated by atomic lines of carbon and oxygen and band emission of the C2 and CN molecules. The electron number density and temperature (ionic, vibrational, and rotational) were evaluated to characterize the laser-induced plasma. In addition, PMMA micro-damages (diameter ∼ 45 µm) created by a multipulse laser ablation could find potential applications in sensor technologies.
T2  - Applied Surface Science
T1  - TEA CO2 Laser – Polymethyl Methacrylate Interaction: LIBS Hydrogen Analysis
VL  - 572
SP  - 151424
DO  - 10.1016/j.apsusc.2021.151424
ER  - 

@article{
author = "Trtica, Milan and Kuzmanović, Miroslav M. and Savović, Jelena and Ranković, Dragan",
year = "2022",
abstract = "The interaction of a Transversely Excited Atmospheric (TEA) CO2 laser with a polymer polymethyl methacrylate (PMMA) sample in a vacuum ambiance was studied. The main goal was to demonstrate the feasibility of laser-induced breakdown spectroscopy (LIBS) to detect hydrogen. The generation of plasma over the PMMA surface, using a low laser intensity of ∼ 48 MW/cm2 and fluence of ∼ 16.5 J/cm2, required the application of a metal sub-target. Besides hydrogen, the recorded spectra were dominated by atomic lines of carbon and oxygen and band emission of the C2 and CN molecules. The electron number density and temperature (ionic, vibrational, and rotational) were evaluated to characterize the laser-induced plasma. In addition, PMMA micro-damages (diameter ∼ 45 µm) created by a multipulse laser ablation could find potential applications in sensor technologies.",
journal = "Applied Surface Science",
title = "TEA CO2 Laser – Polymethyl Methacrylate Interaction: LIBS Hydrogen Analysis",
volume = "572",
pages = "151424",
doi = "10.1016/j.apsusc.2021.151424"
}

Trtica, M., Kuzmanović, M. M., Savović, J.,& Ranković, D.. (2022). TEA CO2 Laser – Polymethyl Methacrylate Interaction: LIBS Hydrogen Analysis. in Applied Surface Science, 572, 151424.
https://doi.org/10.1016/j.apsusc.2021.151424

Trtica M, Kuzmanović MM, Savović J, Ranković D. TEA CO2 Laser – Polymethyl Methacrylate Interaction: LIBS Hydrogen Analysis. in Applied Surface Science. 2022;572:151424.
doi:10.1016/j.apsusc.2021.151424 .

Trtica, Milan, Kuzmanović, Miroslav M., Savović, Jelena, Ranković, Dragan, "TEA CO2 Laser – Polymethyl Methacrylate Interaction: LIBS Hydrogen Analysis" in Applied Surface Science, 572 (2022):151424,
https://doi.org/10.1016/j.apsusc.2021.151424 . .

TY  - CONF
AU  - Popović, D. M.
AU  - Kushima, A.
AU  - Zekić, A. A.
AU  - Kasalica, B.
AU  - Stašić, Jelena
AU  - Ciganović, Jovan
AU  - Bogdanović, M.
AU  - Trtica, Milan
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12095
AB  - Silicon-based nanoparticles (SiNPs) attract authors’ attention due its application prospects in a mutual field, from energy storage to bio-imaging. One of the most prominent methods for synthesis of SiNPs is pulsed laser ablation in liquid media (LAL), because it is simple, and it provides the minimum of contamination of the sample produced. Employed pulsed lasers in LAL are ns- and ps-, and the usage of fs- lasers are reported recently, as well. The objects of the LAL analyses are ablated craters on the Si target surface and, predominantly, the ablated material. Here, SiNPs are synthesized by ps- laser (150 ps, 1064 nm) ablation of Si single-crystal plates in de-ionized water. The focus of the work is the impact of the additional continuous wave (CW) laser (532nm) on the properties of the ablated material, i.e. SiNPs produced. The comprehensive analyses were performed, including the SiNPs’ size distribution, agglomeration abilities, aging, chemical properties (amount of oxygen and its distribution within the particles), and photoluminescence (PL) properties of the solution produced. It is demonstrated that PL properties of obtained SiNPs solution are impacted by introducing the CW laser in the ablation process. The peculiarity lies in the fact that such impact depends on both the PL excitation wavelength and the power of the introduced CW laser, which might open the possibility of successful tailoring of SiNPs produced by LAL.
C3  - SPIG 2022 : 31st Summer School and International Symposium on the Physics of Ionized Gases : Contributed papers and abstracts
T1  - Picosecond pulsed laser ablation of silicon single crystal
VL  - 102
SP  - 81
EP  - 81
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12095
ER  - 

@conference{
author = "Popović, D. M. and Kushima, A. and Zekić, A. A. and Kasalica, B. and Stašić, Jelena and Ciganović, Jovan and Bogdanović, M. and Trtica, Milan",
year = "2022",
abstract = "Silicon-based nanoparticles (SiNPs) attract authors’ attention due its application prospects in a mutual field, from energy storage to bio-imaging. One of the most prominent methods for synthesis of SiNPs is pulsed laser ablation in liquid media (LAL), because it is simple, and it provides the minimum of contamination of the sample produced. Employed pulsed lasers in LAL are ns- and ps-, and the usage of fs- lasers are reported recently, as well. The objects of the LAL analyses are ablated craters on the Si target surface and, predominantly, the ablated material. Here, SiNPs are synthesized by ps- laser (150 ps, 1064 nm) ablation of Si single-crystal plates in de-ionized water. The focus of the work is the impact of the additional continuous wave (CW) laser (532nm) on the properties of the ablated material, i.e. SiNPs produced. The comprehensive analyses were performed, including the SiNPs’ size distribution, agglomeration abilities, aging, chemical properties (amount of oxygen and its distribution within the particles), and photoluminescence (PL) properties of the solution produced. It is demonstrated that PL properties of obtained SiNPs solution are impacted by introducing the CW laser in the ablation process. The peculiarity lies in the fact that such impact depends on both the PL excitation wavelength and the power of the introduced CW laser, which might open the possibility of successful tailoring of SiNPs produced by LAL.",
journal = "SPIG 2022 : 31st Summer School and International Symposium on the Physics of Ionized Gases : Contributed papers and abstracts",
title = "Picosecond pulsed laser ablation of silicon single crystal",
volume = "102",
pages = "81-81",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12095"
}

Popović, D. M., Kushima, A., Zekić, A. A., Kasalica, B., Stašić, J., Ciganović, J., Bogdanović, M.,& Trtica, M.. (2022). Picosecond pulsed laser ablation of silicon single crystal. in SPIG 2022 : 31st Summer School and International Symposium on the Physics of Ionized Gases : Contributed papers and abstracts, 102, 81-81.
https://hdl.handle.net/21.15107/rcub_vinar_12095

Popović DM, Kushima A, Zekić AA, Kasalica B, Stašić J, Ciganović J, Bogdanović M, Trtica M. Picosecond pulsed laser ablation of silicon single crystal. in SPIG 2022 : 31st Summer School and International Symposium on the Physics of Ionized Gases : Contributed papers and abstracts. 2022;102:81-81.
https://hdl.handle.net/21.15107/rcub_vinar_12095 .

Popović, D. M., Kushima, A., Zekić, A. A., Kasalica, B., Stašić, Jelena, Ciganović, Jovan, Bogdanović, M., Trtica, Milan, "Picosecond pulsed laser ablation of silicon single crystal" in SPIG 2022 : 31st Summer School and International Symposium on the Physics of Ionized Gases : Contributed papers and abstracts, 102 (2022):81-81,
https://hdl.handle.net/21.15107/rcub_vinar_12095 .

TY  - CONF
AU  - Trtica, Milan
AU  - Stašić, Jelena
AU  - Chen, Xizhang
AU  - Limpouch, Jiri
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12096
AB  - The behavior of Oxide Dispersion Strengthened (ODS) steel with addition of hafnium, as well as AISI 316L steel, at high laser intensity of ~1013 W/cm2  in ambiences of air and vacuum, was studied. Irradiation source was Ti:Sapphire laser operating at 804 nm and pulse length of ~65 fs. Morphological and chemical studies were considered, thus that: (i) given laser intensity induced damages on both steels with the damage being more prominent on AISI 316L steel; (ii) various surface features were present, such as coral-like structure and Laser Induced Periodic Surface Structures (LIPSS), with LIPSS being dominant on the surface; (iii) the interaction was accompanied by generation of plasma above the target, and (iv) chemical analysis has shown that surface elemental content also depends on the ambience used.
C3  - SPIG 2022 : 31st Summer School and International Symposium on the Physics of Ionized Gases : Contributed papers and abstracts
T1  - ODS+Hf and AISI 316L steel surface variations at high laser intensity, 1013 W/cm2, in air and vacuum: comparative study
VL  - 102
SP  - 145
EP  - 148
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12096
ER  - 

@conference{
author = "Trtica, Milan and Stašić, Jelena and Chen, Xizhang and Limpouch, Jiri",
year = "2022",
abstract = "The behavior of Oxide Dispersion Strengthened (ODS) steel with addition of hafnium, as well as AISI 316L steel, at high laser intensity of ~1013 W/cm2  in ambiences of air and vacuum, was studied. Irradiation source was Ti:Sapphire laser operating at 804 nm and pulse length of ~65 fs. Morphological and chemical studies were considered, thus that: (i) given laser intensity induced damages on both steels with the damage being more prominent on AISI 316L steel; (ii) various surface features were present, such as coral-like structure and Laser Induced Periodic Surface Structures (LIPSS), with LIPSS being dominant on the surface; (iii) the interaction was accompanied by generation of plasma above the target, and (iv) chemical analysis has shown that surface elemental content also depends on the ambience used.",
journal = "SPIG 2022 : 31st Summer School and International Symposium on the Physics of Ionized Gases : Contributed papers and abstracts",
title = "ODS+Hf and AISI 316L steel surface variations at high laser intensity, 1013 W/cm2, in air and vacuum: comparative study",
volume = "102",
pages = "145-148",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12096"
}

Trtica, M., Stašić, J., Chen, X.,& Limpouch, J.. (2022). ODS+Hf and AISI 316L steel surface variations at high laser intensity, 1013 W/cm2, in air and vacuum: comparative study. in SPIG 2022 : 31st Summer School and International Symposium on the Physics of Ionized Gases : Contributed papers and abstracts, 102, 145-148.
https://hdl.handle.net/21.15107/rcub_vinar_12096

Trtica M, Stašić J, Chen X, Limpouch J. ODS+Hf and AISI 316L steel surface variations at high laser intensity, 1013 W/cm2, in air and vacuum: comparative study. in SPIG 2022 : 31st Summer School and International Symposium on the Physics of Ionized Gases : Contributed papers and abstracts. 2022;102:145-148.
https://hdl.handle.net/21.15107/rcub_vinar_12096 .

Trtica, Milan, Stašić, Jelena, Chen, Xizhang, Limpouch, Jiri, "ODS+Hf and AISI 316L steel surface variations at high laser intensity, 1013 W/cm2, in air and vacuum: comparative study" in SPIG 2022 : 31st Summer School and International Symposium on the Physics of Ionized Gases : Contributed papers and abstracts, 102 (2022):145-148,
https://hdl.handle.net/21.15107/rcub_vinar_12096 .

TY  - JOUR
AU  - Zhao, Senlin
AU  - Xin, Dongqun
AU  - Chen, Xizhang
AU  - Stašić, Jelena
AU  - Trtica, Milan
AU  - Siddiquee, Arshad Noor
AU  - Mohan, Sanjay
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10292
AB  - AlCoxCrFeNi (x = 2.2, 2.8) high entropy alloys (HEAs) were successfully prepared by multi-layer and multi-channel laser melting deposition (LMD). The tensile properties of the LMD-fabricated AlCoxCrFeNi HEAs were investigated. The phase evolution of these alloys was examined by X-ray diffraction and compared with existing models. The microstructure of the alloys was characterized using scanning electron microscopy and electron backscatter diffraction. It is found that Co element can promote the phase transformation from BCC phase to FCC phase in the as-deposited AlCoxCrFeNi HEAs, and the volume fraction of FCC phase increases from 51.4% to 74.6% as the Co content increases from 36.2 at% to 40.8 at%. With the increase of Co content, the grain size of BCC phase in the alloys decreases and a larger amount of fine needle-like BCC phase appears in the FCC matrix. Tensile testing shows that higher Co content in the deposited AlCoxCrFeNi alloy can enhance its plasticity without significantly compromising its ultimate strength. As the Co content increases, the fracture strain increases from 5.9% to 15.4%, while the yield strength reduces from 450 MPa to 360 MPa and the ultimate tensile strength increases from 734 MPa to 739 MPa. The variations in tensile properties of the AlCoxCrFeNi alloy result from phase structure changes and microstructure evolution. Through this research, it is demonstrated that enhancement of the tensile properties of the LMD-fabricated AlCoCrFeNi HEAs can be realized by increasing the content of Co element.
T2  - Journal of Alloys and Compounds
T1  - Microstructure and enhanced tensile properties of AlCoxCrFeNi high entropy alloys with high Co content fabricated by laser melting deposition
VL  - 917
SP  - 165403
DO  - 10.1016/j.jallcom.2022.165403
ER  - 

@article{
author = "Zhao, Senlin and Xin, Dongqun and Chen, Xizhang and Stašić, Jelena and Trtica, Milan and Siddiquee, Arshad Noor and Mohan, Sanjay",
year = "2022",
abstract = "AlCoxCrFeNi (x = 2.2, 2.8) high entropy alloys (HEAs) were successfully prepared by multi-layer and multi-channel laser melting deposition (LMD). The tensile properties of the LMD-fabricated AlCoxCrFeNi HEAs were investigated. The phase evolution of these alloys was examined by X-ray diffraction and compared with existing models. The microstructure of the alloys was characterized using scanning electron microscopy and electron backscatter diffraction. It is found that Co element can promote the phase transformation from BCC phase to FCC phase in the as-deposited AlCoxCrFeNi HEAs, and the volume fraction of FCC phase increases from 51.4% to 74.6% as the Co content increases from 36.2 at% to 40.8 at%. With the increase of Co content, the grain size of BCC phase in the alloys decreases and a larger amount of fine needle-like BCC phase appears in the FCC matrix. Tensile testing shows that higher Co content in the deposited AlCoxCrFeNi alloy can enhance its plasticity without significantly compromising its ultimate strength. As the Co content increases, the fracture strain increases from 5.9% to 15.4%, while the yield strength reduces from 450 MPa to 360 MPa and the ultimate tensile strength increases from 734 MPa to 739 MPa. The variations in tensile properties of the AlCoxCrFeNi alloy result from phase structure changes and microstructure evolution. Through this research, it is demonstrated that enhancement of the tensile properties of the LMD-fabricated AlCoCrFeNi HEAs can be realized by increasing the content of Co element.",
journal = "Journal of Alloys and Compounds",
title = "Microstructure and enhanced tensile properties of AlCoxCrFeNi high entropy alloys with high Co content fabricated by laser melting deposition",
volume = "917",
pages = "165403",
doi = "10.1016/j.jallcom.2022.165403"
}

Zhao, S., Xin, D., Chen, X., Stašić, J., Trtica, M., Siddiquee, A. N.,& Mohan, S.. (2022). Microstructure and enhanced tensile properties of AlCoxCrFeNi high entropy alloys with high Co content fabricated by laser melting deposition. in Journal of Alloys and Compounds, 917, 165403.
https://doi.org/10.1016/j.jallcom.2022.165403

Zhao S, Xin D, Chen X, Stašić J, Trtica M, Siddiquee AN, Mohan S. Microstructure and enhanced tensile properties of AlCoxCrFeNi high entropy alloys with high Co content fabricated by laser melting deposition. in Journal of Alloys and Compounds. 2022;917:165403.
doi:10.1016/j.jallcom.2022.165403 .

Zhao, Senlin, Xin, Dongqun, Chen, Xizhang, Stašić, Jelena, Trtica, Milan, Siddiquee, Arshad Noor, Mohan, Sanjay, "Microstructure and enhanced tensile properties of AlCoxCrFeNi high entropy alloys with high Co content fabricated by laser melting deposition" in Journal of Alloys and Compounds, 917 (2022):165403,
https://doi.org/10.1016/j.jallcom.2022.165403 . .

TY  - JOUR
AU  - Zhou, Chao
AU  - Zhang, Youzhi
AU  - Stašić, Jelena
AU  - Liang, Yu
AU  - Chen, Xizhang
AU  - Trtica, Milan
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10541
AB  - High-entropy alloys (HEAs) have received much attention since presented in 2004. Machine learning (ML) can accelerate the research of new HEAs. At present, among the ML research methods used to predict the properties of HEAs, alloys are manufactured mainly by the melt-casting method. The existing ML methods do not use the process parameters of the manufacturing process as input features. Unlike the melt-casting method, additive manufacturing (AM) has promising applications with its ability to prototype and manufacture complex-shaped parts rapidly. The AM process parameters can significantly affect the performance of HEAs. The process parameters are a critical factor that must be considered for ML. Therefore, an ML method dependent on AM process parameters is proposed to predict the hardness of HEAs. The prediction results of six commonly used ML models are compared. The dependence of ML on process parameters is investigated. Four new HEAs are manufactured based on AM to verify the reliability of ML prediction results. The experimental results show that adding process parameters to ML improves the prediction accuracy by 4%. The prediction accuracy of ML reaches 89%, and the average prediction error for new HEAs is 3.83%.
T2  - Advanced Engineering Materials
T1  - Hardness Predicting of Additively Manufactured High-Entropy Alloys Based on Fabrication Parameter-Dependent Machine Learning
SP  - 2201369
DO  - 10.1002/adem.202201369
ER  - 

@article{
author = "Zhou, Chao and Zhang, Youzhi and Stašić, Jelena and Liang, Yu and Chen, Xizhang and Trtica, Milan",
year = "2022",
abstract = "High-entropy alloys (HEAs) have received much attention since presented in 2004. Machine learning (ML) can accelerate the research of new HEAs. At present, among the ML research methods used to predict the properties of HEAs, alloys are manufactured mainly by the melt-casting method. The existing ML methods do not use the process parameters of the manufacturing process as input features. Unlike the melt-casting method, additive manufacturing (AM) has promising applications with its ability to prototype and manufacture complex-shaped parts rapidly. The AM process parameters can significantly affect the performance of HEAs. The process parameters are a critical factor that must be considered for ML. Therefore, an ML method dependent on AM process parameters is proposed to predict the hardness of HEAs. The prediction results of six commonly used ML models are compared. The dependence of ML on process parameters is investigated. Four new HEAs are manufactured based on AM to verify the reliability of ML prediction results. The experimental results show that adding process parameters to ML improves the prediction accuracy by 4%. The prediction accuracy of ML reaches 89%, and the average prediction error for new HEAs is 3.83%.",
journal = "Advanced Engineering Materials",
title = "Hardness Predicting of Additively Manufactured High-Entropy Alloys Based on Fabrication Parameter-Dependent Machine Learning",
pages = "2201369",
doi = "10.1002/adem.202201369"
}

Zhou, C., Zhang, Y., Stašić, J., Liang, Y., Chen, X.,& Trtica, M.. (2022). Hardness Predicting of Additively Manufactured High-Entropy Alloys Based on Fabrication Parameter-Dependent Machine Learning. in Advanced Engineering Materials, 2201369.
https://doi.org/10.1002/adem.202201369

Zhou C, Zhang Y, Stašić J, Liang Y, Chen X, Trtica M. Hardness Predicting of Additively Manufactured High-Entropy Alloys Based on Fabrication Parameter-Dependent Machine Learning. in Advanced Engineering Materials. 2022;:2201369.
doi:10.1002/adem.202201369 .

Zhou, Chao, Zhang, Youzhi, Stašić, Jelena, Liang, Yu, Chen, Xizhang, Trtica, Milan, "Hardness Predicting of Additively Manufactured High-Entropy Alloys Based on Fabrication Parameter-Dependent Machine Learning" in Advanced Engineering Materials (2022):2201369,
https://doi.org/10.1002/adem.202201369 . .

TY  - CONF
AU  - Marković, M.
AU  - Ranković, D.
AU  - Savić-Biserčić, Marjetka
AU  - Trtica, Milan
AU  - Savović, Jelena
AU  - Kuzmanović, M.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10666
AB  - The application of laser-induced breakdown spectroscopy (LIBS) for the elemental analysis of pig shoulder bone samples is reported. Measurements were performed using a compact laboratory-made TEA CO2 laser with low pulse energy. The recorded spectra consisted of well-defined lines of atoms and single charged ions of Ca, Mg, P, and other constituent elements, with a good signal-to-noise ratio suitable for spectrochemical analysis. Based on the ICP quantitative analysis of the bone sample, the limits of detection of LIBS analysis were estimated for Mg (16 ppm) and Na (940 ppm). Plasma parameters, temperature, and electron number density were determined by measuring Stark widths and relative intensities of the C and Mg ionic and atomic spectral lines.
C3  - PHYSICAL CHEMISTRY 2021 : 15th international conference on fundamental and applied aspects of physical chemistry
T1  - Optical spectroscopy of plasma induced by irradiation of animal bone with TEA CO2 laser
SP  - 25
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10666
ER  - 

@conference{
author = "Marković, M. and Ranković, D. and Savić-Biserčić, Marjetka and Trtica, Milan and Savović, Jelena and Kuzmanović, M.",
year = "2021",
abstract = "The application of laser-induced breakdown spectroscopy (LIBS) for the elemental analysis of pig shoulder bone samples is reported. Measurements were performed using a compact laboratory-made TEA CO2 laser with low pulse energy. The recorded spectra consisted of well-defined lines of atoms and single charged ions of Ca, Mg, P, and other constituent elements, with a good signal-to-noise ratio suitable for spectrochemical analysis. Based on the ICP quantitative analysis of the bone sample, the limits of detection of LIBS analysis were estimated for Mg (16 ppm) and Na (940 ppm). Plasma parameters, temperature, and electron number density were determined by measuring Stark widths and relative intensities of the C and Mg ionic and atomic spectral lines.",
journal = "PHYSICAL CHEMISTRY 2021 : 15th international conference on fundamental and applied aspects of physical chemistry",
title = "Optical spectroscopy of plasma induced by irradiation of animal bone with TEA CO2 laser",
pages = "25",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10666"
}

Marković, M., Ranković, D., Savić-Biserčić, M., Trtica, M., Savović, J.,& Kuzmanović, M.. (2021). Optical spectroscopy of plasma induced by irradiation of animal bone with TEA CO2 laser. in PHYSICAL CHEMISTRY 2021 : 15th international conference on fundamental and applied aspects of physical chemistry, 25.
https://hdl.handle.net/21.15107/rcub_vinar_10666

Marković M, Ranković D, Savić-Biserčić M, Trtica M, Savović J, Kuzmanović M. Optical spectroscopy of plasma induced by irradiation of animal bone with TEA CO2 laser. in PHYSICAL CHEMISTRY 2021 : 15th international conference on fundamental and applied aspects of physical chemistry. 2021;:25.
https://hdl.handle.net/21.15107/rcub_vinar_10666 .

Marković, M., Ranković, D., Savić-Biserčić, Marjetka, Trtica, Milan, Savović, Jelena, Kuzmanović, M., "Optical spectroscopy of plasma induced by irradiation of animal bone with TEA CO2 laser" in PHYSICAL CHEMISTRY 2021 : 15th international conference on fundamental and applied aspects of physical chemistry (2021):25,
https://hdl.handle.net/21.15107/rcub_vinar_10666 .

TY  - CONF
AU  - Trtica, Milan
AU  - Stašić, Jelena
AU  - Limpouch, Jiri
AU  - Gavrilov, P.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12097
AB  - Nuclear fusion (NF) as a source of clean energy is of interest to many governments, research groups, etc., nowadays. In order for NF to be applied in full capacity, certain problems related to plasma physics and reactor technology should be overcome [1]. In the main, there are two approaches at this moment, the first one based on magnetic confinement and the second one based on inertial confinement fusion, i.e. laser concept. Focusing only on the reactor technology, it is of high importance, among other, to apply the reactor materials (RM) possessing high resistance to thermal and radiation (including electromagnetic) flux [2]. In this context, the behavior of fusion RM, particularly potential plasma facing materials (PFM), will be observed. In nuclear reactor, the PFM are exposed to various fluxes such as the neutrons, alfa-particles, electromagnetic, thermal, hydrogen isotopes. These high thermal as well as electromagnetic fluxes can be, in one approximation, simulated by high-intensity laser radiation [3, 4]. Examples of high intensity femtosecond laser – material interaction will be presented in this work. The materials, i.e. candidates for PFM like tungsten, oxide dispersion strengthened (ODS) steel, will be investigated under the action of high laser intensity of the order of 1014 W/cm2  [5, 6]. Also, the presence of hydrogen isotopes in PFM will be analyzed.
C3  - AMPL-2021 : 15TH International conference Pulsed Lasers and Laser Applications : Book of abstracts
T1  - Ultrashort laser - fusion material interaction
VL  - 102
SP  - 6
EP  - 7
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12097
ER  - 

@conference{
author = "Trtica, Milan and Stašić, Jelena and Limpouch, Jiri and Gavrilov, P.",
year = "2021",
abstract = "Nuclear fusion (NF) as a source of clean energy is of interest to many governments, research groups, etc., nowadays. In order for NF to be applied in full capacity, certain problems related to plasma physics and reactor technology should be overcome [1]. In the main, there are two approaches at this moment, the first one based on magnetic confinement and the second one based on inertial confinement fusion, i.e. laser concept. Focusing only on the reactor technology, it is of high importance, among other, to apply the reactor materials (RM) possessing high resistance to thermal and radiation (including electromagnetic) flux [2]. In this context, the behavior of fusion RM, particularly potential plasma facing materials (PFM), will be observed. In nuclear reactor, the PFM are exposed to various fluxes such as the neutrons, alfa-particles, electromagnetic, thermal, hydrogen isotopes. These high thermal as well as electromagnetic fluxes can be, in one approximation, simulated by high-intensity laser radiation [3, 4]. Examples of high intensity femtosecond laser – material interaction will be presented in this work. The materials, i.e. candidates for PFM like tungsten, oxide dispersion strengthened (ODS) steel, will be investigated under the action of high laser intensity of the order of 1014 W/cm2  [5, 6]. Also, the presence of hydrogen isotopes in PFM will be analyzed.",
journal = "AMPL-2021 : 15TH International conference Pulsed Lasers and Laser Applications : Book of abstracts",
title = "Ultrashort laser - fusion material interaction",
volume = "102",
pages = "6-7",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12097"
}

Trtica, M., Stašić, J., Limpouch, J.,& Gavrilov, P.. (2021). Ultrashort laser - fusion material interaction. in AMPL-2021 : 15TH International conference Pulsed Lasers and Laser Applications : Book of abstracts, 102, 6-7.
https://hdl.handle.net/21.15107/rcub_vinar_12097

Trtica M, Stašić J, Limpouch J, Gavrilov P. Ultrashort laser - fusion material interaction. in AMPL-2021 : 15TH International conference Pulsed Lasers and Laser Applications : Book of abstracts. 2021;102:6-7.
https://hdl.handle.net/21.15107/rcub_vinar_12097 .

Trtica, Milan, Stašić, Jelena, Limpouch, Jiri, Gavrilov, P., "Ultrashort laser - fusion material interaction" in AMPL-2021 : 15TH International conference Pulsed Lasers and Laser Applications : Book of abstracts, 102 (2021):6-7,
https://hdl.handle.net/21.15107/rcub_vinar_12097 .

TY  - CONF
AU  - Stašić, Jelena
AU  - Trtica, Milan
AU  - Batani, D.
AU  - Benocci, R.
AU  - Narayanan, V.
AU  - Žekić, A.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10912
AB  - The study deals with morphological effects on the silver target irradiated with ultrashort laser pulses in liquid (water). Synthesis of metal nanostructures (NS) by laser ablation in liquid is a relatively new method with benefits including clean production, without the use of additional chemicals necessary in conventional techniques, obtaining of pure particles with no surfactants, and good stability of the colloid. There are fewer studies, however, concerning the effects on the target itself during the laser action, and this type of research could lead to a better understanding of the physics involved and therefore better control of the process by linking the induced morphological features with NS synthesis results – yield, size distribution, etc. Also, reports on the laser ablation parameters of silver in liquid environment are scarce and significant for every particular set of parameters (laser pulse length, other laser parameters, liquid type). In this work, Ag target was irradiated with laser pulses 40 ps long, at 1064 nm wavelength and 10 Hz repetition rate. Irradiation time was 5 min, and pulse energies ranged from 0.5 mJ to around 22 mJ. Submicron particles were synthesized for all energies above 1 mJ and their size varied from tens of nanometers to ~200 nm. Optimum results were obtained for energies ~14- 17 mJ. Ablation depths were in the range of 30 to 100 µm for the above mentioned energy range. Damage threshold fluence was determined to be around 0.7 J/cm2 . Surface features were distinctly different than in air with sponge-like structure.
PB  - Belgrade : Institute of Physics Belgrade
C3  - PHOTONICA2021 : 8th International School and Conference on Photonics and HEMMAGINERO workshop : Abstracts of Tutorial, Keynote, Invited Lectures, Progress Reports and Contributed Papers; August 23-27, 2021; Belgrade
T1  - Morphological study of silver in the conditions of ultrashort laser ablation in liquid
SP  - 149
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10912
ER  - 

@conference{
author = "Stašić, Jelena and Trtica, Milan and Batani, D. and Benocci, R. and Narayanan, V. and Žekić, A.",
year = "2021",
abstract = "The study deals with morphological effects on the silver target irradiated with ultrashort laser pulses in liquid (water). Synthesis of metal nanostructures (NS) by laser ablation in liquid is a relatively new method with benefits including clean production, without the use of additional chemicals necessary in conventional techniques, obtaining of pure particles with no surfactants, and good stability of the colloid. There are fewer studies, however, concerning the effects on the target itself during the laser action, and this type of research could lead to a better understanding of the physics involved and therefore better control of the process by linking the induced morphological features with NS synthesis results – yield, size distribution, etc. Also, reports on the laser ablation parameters of silver in liquid environment are scarce and significant for every particular set of parameters (laser pulse length, other laser parameters, liquid type). In this work, Ag target was irradiated with laser pulses 40 ps long, at 1064 nm wavelength and 10 Hz repetition rate. Irradiation time was 5 min, and pulse energies ranged from 0.5 mJ to around 22 mJ. Submicron particles were synthesized for all energies above 1 mJ and their size varied from tens of nanometers to ~200 nm. Optimum results were obtained for energies ~14- 17 mJ. Ablation depths were in the range of 30 to 100 µm for the above mentioned energy range. Damage threshold fluence was determined to be around 0.7 J/cm2 . Surface features were distinctly different than in air with sponge-like structure.",
publisher = "Belgrade : Institute of Physics Belgrade",
journal = "PHOTONICA2021 : 8th International School and Conference on Photonics and HEMMAGINERO workshop : Abstracts of Tutorial, Keynote, Invited Lectures, Progress Reports and Contributed Papers; August 23-27, 2021; Belgrade",
title = "Morphological study of silver in the conditions of ultrashort laser ablation in liquid",
pages = "149",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10912"
}

Stašić, J., Trtica, M., Batani, D., Benocci, R., Narayanan, V.,& Žekić, A.. (2021). Morphological study of silver in the conditions of ultrashort laser ablation in liquid. in PHOTONICA2021 : 8th International School and Conference on Photonics and HEMMAGINERO workshop : Abstracts of Tutorial, Keynote, Invited Lectures, Progress Reports and Contributed Papers; August 23-27, 2021; Belgrade
Belgrade : Institute of Physics Belgrade., 149.
https://hdl.handle.net/21.15107/rcub_vinar_10912

Stašić J, Trtica M, Batani D, Benocci R, Narayanan V, Žekić A. Morphological study of silver in the conditions of ultrashort laser ablation in liquid. in PHOTONICA2021 : 8th International School and Conference on Photonics and HEMMAGINERO workshop : Abstracts of Tutorial, Keynote, Invited Lectures, Progress Reports and Contributed Papers; August 23-27, 2021; Belgrade. 2021;:149.
https://hdl.handle.net/21.15107/rcub_vinar_10912 .

Stašić, Jelena, Trtica, Milan, Batani, D., Benocci, R., Narayanan, V., Žekić, A., "Morphological study of silver in the conditions of ultrashort laser ablation in liquid" in PHOTONICA2021 : 8th International School and Conference on Photonics and HEMMAGINERO workshop : Abstracts of Tutorial, Keynote, Invited Lectures, Progress Reports and Contributed Papers; August 23-27, 2021; Belgrade (2021):149,
https://hdl.handle.net/21.15107/rcub_vinar_10912 .

TY  - JOUR
AU  - Trtica, Milan
AU  - Stašić, Jelena
AU  - Limpouch, Jiri
AU  - Gavrilov, Peter T.
AU  - Chen, X.
AU  - Ciganović, Jovan
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8608
AB  - The behavior of 16Cr3Al ODS steel (oxide dispersion strengthened steel), widely employed structural fusion material, under high-intensity laser radiation with intensity up to 10(14)W/cm(2) was investigated in air, helium and vacuum surrounding. Employed system was 65 fs laser at 804 nm, with applied pulse energy up to 5.25 mJ. Morphological effects were studied - cracking, crater parameters (depth, cross-section), LIPSS (laser-induced periodic surface structures) formation at the crater periphery, hydrodynamic effects, as well as chemical variations on the surface. Ablation thresholds were also determined for all three ambiences (for 100 applied pulses), and they were 0.30 J/cm(2), 0.23 J/cm(2) and 0.39 J/cm(2) in air, helium and vacuum, respectively. Plasma occurred in all experiments and it was most prominent in vacuum due to strongest laser-material coupling.
T2  - Fusion Engineering and Design
T1  - Surface behavior of 16Cr3Al ODS steel—Effects of high laser intensity 1014 W/cm2 in ambiences of air, helium and vacuum
VL  - 150
SP  - 111360
DO  - 10.1016/j.fusengdes.2019.111360
ER  - 

@article{
author = "Trtica, Milan and Stašić, Jelena and Limpouch, Jiri and Gavrilov, Peter T. and Chen, X. and Ciganović, Jovan",
year = "2020",
abstract = "The behavior of 16Cr3Al ODS steel (oxide dispersion strengthened steel), widely employed structural fusion material, under high-intensity laser radiation with intensity up to 10(14)W/cm(2) was investigated in air, helium and vacuum surrounding. Employed system was 65 fs laser at 804 nm, with applied pulse energy up to 5.25 mJ. Morphological effects were studied - cracking, crater parameters (depth, cross-section), LIPSS (laser-induced periodic surface structures) formation at the crater periphery, hydrodynamic effects, as well as chemical variations on the surface. Ablation thresholds were also determined for all three ambiences (for 100 applied pulses), and they were 0.30 J/cm(2), 0.23 J/cm(2) and 0.39 J/cm(2) in air, helium and vacuum, respectively. Plasma occurred in all experiments and it was most prominent in vacuum due to strongest laser-material coupling.",
journal = "Fusion Engineering and Design",
title = "Surface behavior of 16Cr3Al ODS steel—Effects of high laser intensity 1014 W/cm2 in ambiences of air, helium and vacuum",
volume = "150",
pages = "111360",
doi = "10.1016/j.fusengdes.2019.111360"
}

Trtica, M., Stašić, J., Limpouch, J., Gavrilov, P. T., Chen, X.,& Ciganović, J.. (2020). Surface behavior of 16Cr3Al ODS steel—Effects of high laser intensity 1014 W/cm2 in ambiences of air, helium and vacuum. in Fusion Engineering and Design, 150, 111360.
https://doi.org/10.1016/j.fusengdes.2019.111360

Trtica M, Stašić J, Limpouch J, Gavrilov PT, Chen X, Ciganović J. Surface behavior of 16Cr3Al ODS steel—Effects of high laser intensity 1014 W/cm2 in ambiences of air, helium and vacuum. in Fusion Engineering and Design. 2020;150:111360.
doi:10.1016/j.fusengdes.2019.111360 .

Trtica, Milan, Stašić, Jelena, Limpouch, Jiri, Gavrilov, Peter T., Chen, X., Ciganović, Jovan, "Surface behavior of 16Cr3Al ODS steel—Effects of high laser intensity 1014 W/cm2 in ambiences of air, helium and vacuum" in Fusion Engineering and Design, 150 (2020):111360,
https://doi.org/10.1016/j.fusengdes.2019.111360 . .

TY  - JOUR
AU  - Kuzmanović, Miroslav M.
AU  - Ranković, Dragan
AU  - Trtica, Milan
AU  - Ciganović, Jovan
AU  - Petrović, Jelena
AU  - Savović, Jelena
PY  - 2019
UR  - https://linkinghub.elsevier.com/retrieve/pii/S0584854719300849
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8204
AB  - Optical emission studies of graphite plasma induced by infrared (IR) Transversely Excited Atmospheric carbon dioxide (TEA CO2) laser pulses in ambient air at atmospheric pressure are reported. The plasma was induced at relatively low-irradiance, up to 40 MW cm−2, and the plasma emission was recorded using time-integrated LIBS measurements. The time profile of the 160 mJ laser pulse is composed of a short, 100 ns long initial spike, and a long 2 μs tail. About 60 mJ is contained in the initial pulse, and the 100-mJ tail contribution is favorable for extended plasma absorption that promotes creation of long-lasting highly-excited plasma. With laser pulse focused behind the target surface, recorded spectra consisted of intensive, sharp atomic and single charged ionic spectral lines of carbon, and trace elements, e.g. Ca, Cu, V, Si, and Ti. Good signal to background ratios obtained indicate potential application in the analysis of impurities in graphite, and also elemental analysis of other materials with high carbon content. The average electron number density was determined from Stark-broadened emission profile of C I 247.9 nm line, and the line intensity ratio of CII 250.9 nm/C I 247.9 nm line pair was used for estimation of ionization temperature. Depending on the applied fluence, electron density was in the range 2.6–4.8 × 1017 cm−3, and ionization temperature between 19,000 and 22,000 K. Beside line spectra, intensive and well-developed band spectra of diatomic molecules C2 (Swan system), and CN (violet system) were obtained. Pulse energy threshold for observation of molecular emission was 50 mJ. From the spectroscopic studies of the emission bands, the rotational and vibrational temperatures were estimated by comparing the experimental and simulated emission spectra. Vibrational and rotational temperatures deduced from Δν = 0 sequences of the Swan system of C2 were 3100 K and 3850 K, respectively. The most intense band of the CN violet system showed strong self-absorption and led to overestimated temperature values, Tvib = Trot = 4900 K. © 2019 Elsevier B.V.
T2  - Spectrochimica Acta. Part B: Atomic Spectroscopy
T1  - Optical emission of graphite plasma generated in ambient air using low-irradiance carbon dioxide laser pulses
VL  - 157
SP  - 37
EP  - 46
DO  - 10.1016/j.sab.2019.05.006
ER  - 

@article{
author = "Kuzmanović, Miroslav M. and Ranković, Dragan and Trtica, Milan and Ciganović, Jovan and Petrović, Jelena and Savović, Jelena",
year = "2019",
abstract = "Optical emission studies of graphite plasma induced by infrared (IR) Transversely Excited Atmospheric carbon dioxide (TEA CO2) laser pulses in ambient air at atmospheric pressure are reported. The plasma was induced at relatively low-irradiance, up to 40 MW cm−2, and the plasma emission was recorded using time-integrated LIBS measurements. The time profile of the 160 mJ laser pulse is composed of a short, 100 ns long initial spike, and a long 2 μs tail. About 60 mJ is contained in the initial pulse, and the 100-mJ tail contribution is favorable for extended plasma absorption that promotes creation of long-lasting highly-excited plasma. With laser pulse focused behind the target surface, recorded spectra consisted of intensive, sharp atomic and single charged ionic spectral lines of carbon, and trace elements, e.g. Ca, Cu, V, Si, and Ti. Good signal to background ratios obtained indicate potential application in the analysis of impurities in graphite, and also elemental analysis of other materials with high carbon content. The average electron number density was determined from Stark-broadened emission profile of C I 247.9 nm line, and the line intensity ratio of CII 250.9 nm/C I 247.9 nm line pair was used for estimation of ionization temperature. Depending on the applied fluence, electron density was in the range 2.6–4.8 × 1017 cm−3, and ionization temperature between 19,000 and 22,000 K. Beside line spectra, intensive and well-developed band spectra of diatomic molecules C2 (Swan system), and CN (violet system) were obtained. Pulse energy threshold for observation of molecular emission was 50 mJ. From the spectroscopic studies of the emission bands, the rotational and vibrational temperatures were estimated by comparing the experimental and simulated emission spectra. Vibrational and rotational temperatures deduced from Δν = 0 sequences of the Swan system of C2 were 3100 K and 3850 K, respectively. The most intense band of the CN violet system showed strong self-absorption and led to overestimated temperature values, Tvib = Trot = 4900 K. © 2019 Elsevier B.V.",
journal = "Spectrochimica Acta. Part B: Atomic Spectroscopy",
title = "Optical emission of graphite plasma generated in ambient air using low-irradiance carbon dioxide laser pulses",
volume = "157",
pages = "37-46",
doi = "10.1016/j.sab.2019.05.006"
}

Kuzmanović, M. M., Ranković, D., Trtica, M., Ciganović, J., Petrović, J.,& Savović, J.. (2019). Optical emission of graphite plasma generated in ambient air using low-irradiance carbon dioxide laser pulses. in Spectrochimica Acta. Part B: Atomic Spectroscopy, 157, 37-46.
https://doi.org/10.1016/j.sab.2019.05.006

Kuzmanović MM, Ranković D, Trtica M, Ciganović J, Petrović J, Savović J. Optical emission of graphite plasma generated in ambient air using low-irradiance carbon dioxide laser pulses. in Spectrochimica Acta. Part B: Atomic Spectroscopy. 2019;157:37-46.
doi:10.1016/j.sab.2019.05.006 .

Kuzmanović, Miroslav M., Ranković, Dragan, Trtica, Milan, Ciganović, Jovan, Petrović, Jelena, Savović, Jelena, "Optical emission of graphite plasma generated in ambient air using low-irradiance carbon dioxide laser pulses" in Spectrochimica Acta. Part B: Atomic Spectroscopy, 157 (2019):37-46,
https://doi.org/10.1016/j.sab.2019.05.006 . .

TY  - JOUR
AU  - Momčilović, Miloš
AU  - Živković, Sanja
AU  - Kuzmanović, Miroslav M.
AU  - Ciganović, Jovan
AU  - Ranković, Dragan
AU  - Trtica, Milan
AU  - Savović, Jelena
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8158
AB  - Time-integrated optical emission spectroscopy was applied for the analysis of emission spectra, and determination of electron densities and excitation temperatures of basalt plasma induced by 10.6 micron laser radiation. The plasma was studied in air, argon and carbon dioxide, under pressure of 10, 50, and 100 mbar. The plasma emission intensity was found to be strongly dependent on the nature of the ambient gas and its pressure. The highest emission intensities and signal to noise ratios were obtained in argon. Depending on the composition and pressure of the surrounding atmosphere, the values of plasma temperature varied between 14,400 K (air at 10 mbar) and 17,100 K (carbon dioxide at 100 mbar). Similarly, the electron number density varied between 3 × 1016 cm−3 (10 mbar air) and 1.6 × 1017 cm−3 (100 mbar CO2). The observed behavior was correlated with the properties of the studied gases, in particular, their mass, thermal conductivity and ionization energy, and the role of the ambient gas in controlling the efficiency of laser-target coupling, laser-plasma interaction and plasma shielding. © 2019, Springer Science+Business Media, LLC, part of Springer Nature.
T2  - Plasma Chemistry and Plasma Processing
T1  - The Effect of Background Gas on the Excitation Temperature and Electron Number Density of Basalt Plasma Induced by 10.6 Micron Laser Radiation
VL  - 39
IS  - 4
SP  - 985
EP  - 1000
DO  - 10.1007/s11090-019-09987-4
ER  - 

@article{
author = "Momčilović, Miloš and Živković, Sanja and Kuzmanović, Miroslav M. and Ciganović, Jovan and Ranković, Dragan and Trtica, Milan and Savović, Jelena",
year = "2019",
abstract = "Time-integrated optical emission spectroscopy was applied for the analysis of emission spectra, and determination of electron densities and excitation temperatures of basalt plasma induced by 10.6 micron laser radiation. The plasma was studied in air, argon and carbon dioxide, under pressure of 10, 50, and 100 mbar. The plasma emission intensity was found to be strongly dependent on the nature of the ambient gas and its pressure. The highest emission intensities and signal to noise ratios were obtained in argon. Depending on the composition and pressure of the surrounding atmosphere, the values of plasma temperature varied between 14,400 K (air at 10 mbar) and 17,100 K (carbon dioxide at 100 mbar). Similarly, the electron number density varied between 3 × 1016 cm−3 (10 mbar air) and 1.6 × 1017 cm−3 (100 mbar CO2). The observed behavior was correlated with the properties of the studied gases, in particular, their mass, thermal conductivity and ionization energy, and the role of the ambient gas in controlling the efficiency of laser-target coupling, laser-plasma interaction and plasma shielding. © 2019, Springer Science+Business Media, LLC, part of Springer Nature.",
journal = "Plasma Chemistry and Plasma Processing",
title = "The Effect of Background Gas on the Excitation Temperature and Electron Number Density of Basalt Plasma Induced by 10.6 Micron Laser Radiation",
volume = "39",
number = "4",
pages = "985-1000",
doi = "10.1007/s11090-019-09987-4"
}

Momčilović, M., Živković, S., Kuzmanović, M. M., Ciganović, J., Ranković, D., Trtica, M.,& Savović, J.. (2019). The Effect of Background Gas on the Excitation Temperature and Electron Number Density of Basalt Plasma Induced by 10.6 Micron Laser Radiation. in Plasma Chemistry and Plasma Processing, 39(4), 985-1000.
https://doi.org/10.1007/s11090-019-09987-4

Momčilović M, Živković S, Kuzmanović MM, Ciganović J, Ranković D, Trtica M, Savović J. The Effect of Background Gas on the Excitation Temperature and Electron Number Density of Basalt Plasma Induced by 10.6 Micron Laser Radiation. in Plasma Chemistry and Plasma Processing. 2019;39(4):985-1000.
doi:10.1007/s11090-019-09987-4 .

Momčilović, Miloš, Živković, Sanja, Kuzmanović, Miroslav M., Ciganović, Jovan, Ranković, Dragan, Trtica, Milan, Savović, Jelena, "The Effect of Background Gas on the Excitation Temperature and Electron Number Density of Basalt Plasma Induced by 10.6 Micron Laser Radiation" in Plasma Chemistry and Plasma Processing, 39, no. 4 (2019):985-1000,
https://doi.org/10.1007/s11090-019-09987-4 . .

TY  - JOUR
AU  - Tarasenko, Nikolai V.
AU  - Kiris, Vasilii V.
AU  - Tarasenka, Natalie N.
AU  - Nevar, Alena A.
AU  - Kuzmanović, Miroslav M.
AU  - Ranković, Dragan
AU  - Savović, Jelena
AU  - Trtica, Milan
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8374
AB  - Gold and copper oxide nanoparticles (NPs) were synthesized using pulsed Nd:YAG laser ablation in liquids (acetone and distilled water). The possibility of emission increasing from laser-induced plasma after the deposition of the prepared NPs on a glass surface promising for spectroscopic analysis of transparent samples was demonstrated.
T2  - International Journal of Nanoscience
T1  - Laser-Assisted Fabrication of Nanoparticles in Liquids and Their Application for Improving Analytical Performance of LIBS
VL  - 18
IS  - 03n04
SP  - 1940048
DO  - 10.1142/S0219581X19400489
ER  - 

@article{
author = "Tarasenko, Nikolai V. and Kiris, Vasilii V. and Tarasenka, Natalie N. and Nevar, Alena A. and Kuzmanović, Miroslav M. and Ranković, Dragan and Savović, Jelena and Trtica, Milan",
year = "2019",
abstract = "Gold and copper oxide nanoparticles (NPs) were synthesized using pulsed Nd:YAG laser ablation in liquids (acetone and distilled water). The possibility of emission increasing from laser-induced plasma after the deposition of the prepared NPs on a glass surface promising for spectroscopic analysis of transparent samples was demonstrated.",
journal = "International Journal of Nanoscience",
title = "Laser-Assisted Fabrication of Nanoparticles in Liquids and Their Application for Improving Analytical Performance of LIBS",
volume = "18",
number = "03n04",
pages = "1940048",
doi = "10.1142/S0219581X19400489"
}

Tarasenko, N. V., Kiris, V. V., Tarasenka, N. N., Nevar, A. A., Kuzmanović, M. M., Ranković, D., Savović, J.,& Trtica, M.. (2019). Laser-Assisted Fabrication of Nanoparticles in Liquids and Their Application for Improving Analytical Performance of LIBS. in International Journal of Nanoscience, 18(03n04), 1940048.
https://doi.org/10.1142/S0219581X19400489

Tarasenko NV, Kiris VV, Tarasenka NN, Nevar AA, Kuzmanović MM, Ranković D, Savović J, Trtica M. Laser-Assisted Fabrication of Nanoparticles in Liquids and Their Application for Improving Analytical Performance of LIBS. in International Journal of Nanoscience. 2019;18(03n04):1940048.
doi:10.1142/S0219581X19400489 .

Tarasenko, Nikolai V., Kiris, Vasilii V., Tarasenka, Natalie N., Nevar, Alena A., Kuzmanović, Miroslav M., Ranković, Dragan, Savović, Jelena, Trtica, Milan, "Laser-Assisted Fabrication of Nanoparticles in Liquids and Their Application for Improving Analytical Performance of LIBS" in International Journal of Nanoscience, 18, no. 03n04 (2019):1940048,
https://doi.org/10.1142/S0219581X19400489 . .

TY  - CONF
AU  - Trtica, Milan
AU  - Stašić, Jelena
AU  - Batani, D.
AU  - Benocci, R.
AU  - Narayanan, V.
AU  - Ciganović, Jovan
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11886
AB  - Titanium target was irradiated by picosecond lasers with pulse length of 40 ps i.e. 150 ps in air and water environment. The goal was studying of the induced surface features in both ambiences, as well as synthesis of Ti-based nanoparticles in liquid. Morphologies of the target at both pulse lengths were studied by standard techniques, e.g. scanning electron microscope (SEM) and profilometry, while chemical analysis of the surface was done by energy-dispersive spectrometry (EDS). Interaction ps laser-Ti depends on a number of parameters – laser parameters, condition of the target surface, working ambience, etc. Irradiation conditions in this work were as follows: τ = 40/150 ps, wavelength 1064 nm, pulse frequency 10 Hz, pulse energy 2-20 mJ, pulse count 3000-9000, irradiation in focusing regime. Generally, induced features differ in air and water surrounding – damage is more diffuse in water, with characteristic wavy surface. In both media laser-induced periodic surface structures (LIPSS) are observed on the damage periphery, however they appear at lower pulse count in water. Irradiation of Ti in water led to creation of nanoparticles (NPs) in most cases as established by UV-Vis spectrophotometry, while their size distribution was determined by DLS (dynamic light scattering) analysis. These were, as expected, Ti-oxide NPs as laser ablation in water always leads to formation of oxide particles except in case of noble metals. The size and shape of NPs obtained using laser ablation in liquid (LAL) method depends strongly on the liquid medium used, as well as laser parameters. In our case NPs were spherical, sized from few tens to few hundreds of nanometers, with occurrence of smaller particles in case of 150 ps laser. With further optimization of conditions obtaining of smaller NPs can be expected.
PB  - Belgrade : Vinča Institute of Nuclear Sciences, University of Belgrade
C3  - PHOTONICA2019 : 7th International School and Conference on Photonics & Machine Learning with Photonics Symposium : Book of abstracts
T1  - Titanium target irradiation by picosecond laser in air and water – surface morphology and synthesis of nanoparticles
SP  - 163
EP  - 163
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11886
ER  - 

@conference{
author = "Trtica, Milan and Stašić, Jelena and Batani, D. and Benocci, R. and Narayanan, V. and Ciganović, Jovan",
year = "2019",
abstract = "Titanium target was irradiated by picosecond lasers with pulse length of 40 ps i.e. 150 ps in air and water environment. The goal was studying of the induced surface features in both ambiences, as well as synthesis of Ti-based nanoparticles in liquid. Morphologies of the target at both pulse lengths were studied by standard techniques, e.g. scanning electron microscope (SEM) and profilometry, while chemical analysis of the surface was done by energy-dispersive spectrometry (EDS). Interaction ps laser-Ti depends on a number of parameters – laser parameters, condition of the target surface, working ambience, etc. Irradiation conditions in this work were as follows: τ = 40/150 ps, wavelength 1064 nm, pulse frequency 10 Hz, pulse energy 2-20 mJ, pulse count 3000-9000, irradiation in focusing regime. Generally, induced features differ in air and water surrounding – damage is more diffuse in water, with characteristic wavy surface. In both media laser-induced periodic surface structures (LIPSS) are observed on the damage periphery, however they appear at lower pulse count in water. Irradiation of Ti in water led to creation of nanoparticles (NPs) in most cases as established by UV-Vis spectrophotometry, while their size distribution was determined by DLS (dynamic light scattering) analysis. These were, as expected, Ti-oxide NPs as laser ablation in water always leads to formation of oxide particles except in case of noble metals. The size and shape of NPs obtained using laser ablation in liquid (LAL) method depends strongly on the liquid medium used, as well as laser parameters. In our case NPs were spherical, sized from few tens to few hundreds of nanometers, with occurrence of smaller particles in case of 150 ps laser. With further optimization of conditions obtaining of smaller NPs can be expected.",
publisher = "Belgrade : Vinča Institute of Nuclear Sciences, University of Belgrade",
journal = "PHOTONICA2019 : 7th International School and Conference on Photonics & Machine Learning with Photonics Symposium : Book of abstracts",
title = "Titanium target irradiation by picosecond laser in air and water – surface morphology and synthesis of nanoparticles",
pages = "163-163",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11886"
}

Trtica, M., Stašić, J., Batani, D., Benocci, R., Narayanan, V.,& Ciganović, J.. (2019). Titanium target irradiation by picosecond laser in air and water – surface morphology and synthesis of nanoparticles. in PHOTONICA2019 : 7th International School and Conference on Photonics & Machine Learning with Photonics Symposium : Book of abstracts
Belgrade : Vinča Institute of Nuclear Sciences, University of Belgrade., 163-163.
https://hdl.handle.net/21.15107/rcub_vinar_11886

Trtica M, Stašić J, Batani D, Benocci R, Narayanan V, Ciganović J. Titanium target irradiation by picosecond laser in air and water – surface morphology and synthesis of nanoparticles. in PHOTONICA2019 : 7th International School and Conference on Photonics & Machine Learning with Photonics Symposium : Book of abstracts. 2019;:163-163.
https://hdl.handle.net/21.15107/rcub_vinar_11886 .

Trtica, Milan, Stašić, Jelena, Batani, D., Benocci, R., Narayanan, V., Ciganović, Jovan, "Titanium target irradiation by picosecond laser in air and water – surface morphology and synthesis of nanoparticles" in PHOTONICA2019 : 7th International School and Conference on Photonics & Machine Learning with Photonics Symposium : Book of abstracts (2019):163-163,
https://hdl.handle.net/21.15107/rcub_vinar_11886 .

TY  - JOUR
AU  - Trtica, Milan
AU  - Limpouch, Jiri
AU  - Stašić, Jelena
AU  - Gavrilov, Peter T.
PY  - 2019
UR  - https://linkinghub.elsevier.com/retrieve/pii/S0169433218324929
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7871
AB  - The present study deals with modification of tungsten surface with high-intensity (∼1015 W/cm2) femtosecond laser in air and vacuum surrounding. Specific findings include: (a) the applied intensities produce crater-like damages with depth ∼31.0 μm in vacuum and ∼7.2 μm in air; (b) peripheral region of the damages is diffuse in air atmosphere unlike vacuum where it is more sharply defined; (c) hydrodynamic features, while present in vacuum, are dramatically reduced in air; (d) characteristic chemical surface changes occur at the surface, and (e) plasma forms in front of the target in both surroundings. The obtained results imply that the employed intensities, in a certain sense, can be used for simulation of some processes in the fusion reactor and for highly precise material removal and tungsten surface processing (by fine tuning of given fs laser parameters). © 2018 Elsevier B.V.
T2  - Applied Surface Science
T1  - Femtosecond laser-assisted surface modification of tungsten with 1015 W/cm2 intensity in air and vacuum ambience
VL  - 464
SP  - 99
EP  - 107
DO  - 10.1016/j.apsusc.2018.09.074
ER  - 

@article{
author = "Trtica, Milan and Limpouch, Jiri and Stašić, Jelena and Gavrilov, Peter T.",
year = "2019",
abstract = "The present study deals with modification of tungsten surface with high-intensity (∼1015 W/cm2) femtosecond laser in air and vacuum surrounding. Specific findings include: (a) the applied intensities produce crater-like damages with depth ∼31.0 μm in vacuum and ∼7.2 μm in air; (b) peripheral region of the damages is diffuse in air atmosphere unlike vacuum where it is more sharply defined; (c) hydrodynamic features, while present in vacuum, are dramatically reduced in air; (d) characteristic chemical surface changes occur at the surface, and (e) plasma forms in front of the target in both surroundings. The obtained results imply that the employed intensities, in a certain sense, can be used for simulation of some processes in the fusion reactor and for highly precise material removal and tungsten surface processing (by fine tuning of given fs laser parameters). © 2018 Elsevier B.V.",
journal = "Applied Surface Science",
title = "Femtosecond laser-assisted surface modification of tungsten with 1015 W/cm2 intensity in air and vacuum ambience",
volume = "464",
pages = "99-107",
doi = "10.1016/j.apsusc.2018.09.074"
}

Trtica, M., Limpouch, J., Stašić, J.,& Gavrilov, P. T.. (2019). Femtosecond laser-assisted surface modification of tungsten with 1015 W/cm2 intensity in air and vacuum ambience. in Applied Surface Science, 464, 99-107.
https://doi.org/10.1016/j.apsusc.2018.09.074

Trtica M, Limpouch J, Stašić J, Gavrilov PT. Femtosecond laser-assisted surface modification of tungsten with 1015 W/cm2 intensity in air and vacuum ambience. in Applied Surface Science. 2019;464:99-107.
doi:10.1016/j.apsusc.2018.09.074 .

Trtica, Milan, Limpouch, Jiri, Stašić, Jelena, Gavrilov, Peter T., "Femtosecond laser-assisted surface modification of tungsten with 1015 W/cm2 intensity in air and vacuum ambience" in Applied Surface Science, 464 (2019):99-107,
https://doi.org/10.1016/j.apsusc.2018.09.074 . .

TY  - JOUR
AU  - Trtica, Milan
AU  - Radak, Bojan
AU  - Milovanović, Dubravka S.
AU  - Kuzmanović, Miroslav M.
AU  - Savović, Jelena
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7809
AB  - Among numerous existing and developing techniques for the detection of air pollution, laser-based optical methods (LBM) are possibly the most promising ones. Unique sensing capabilities of LBM include high speed of analysis, high selectivity, sensitivity and accuracy, low detection limits, and remote detection. This paper gives a brief review of several laser-based systems for optical sensing of gas-phase chemical agents: laser intra-cavity, photoacoustic and laser-induced breakdown spectroscopy, and remote sensing based on differential absorption. For each method, a brief description of the principles of operation is given, and its analytical capabilities are outlined.
T2  - The European Physical Journal Plus
T1  - Laser-based optical techniques for the detection of chemical agents
VL  - 133
IS  - 7
SP  - 268
DO  - 10.1140/epjp/i2018-12145-4
ER  - 

@article{
author = "Trtica, Milan and Radak, Bojan and Milovanović, Dubravka S. and Kuzmanović, Miroslav M. and Savović, Jelena",
year = "2018",
abstract = "Among numerous existing and developing techniques for the detection of air pollution, laser-based optical methods (LBM) are possibly the most promising ones. Unique sensing capabilities of LBM include high speed of analysis, high selectivity, sensitivity and accuracy, low detection limits, and remote detection. This paper gives a brief review of several laser-based systems for optical sensing of gas-phase chemical agents: laser intra-cavity, photoacoustic and laser-induced breakdown spectroscopy, and remote sensing based on differential absorption. For each method, a brief description of the principles of operation is given, and its analytical capabilities are outlined.",
journal = "The European Physical Journal Plus",
title = "Laser-based optical techniques for the detection of chemical agents",
volume = "133",
number = "7",
pages = "268",
doi = "10.1140/epjp/i2018-12145-4"
}

Trtica, M., Radak, B., Milovanović, D. S., Kuzmanović, M. M.,& Savović, J.. (2018). Laser-based optical techniques for the detection of chemical agents. in The European Physical Journal Plus, 133(7), 268.
https://doi.org/10.1140/epjp/i2018-12145-4

Trtica M, Radak B, Milovanović DS, Kuzmanović MM, Savović J. Laser-based optical techniques for the detection of chemical agents. in The European Physical Journal Plus. 2018;133(7):268.
doi:10.1140/epjp/i2018-12145-4 .

Trtica, Milan, Radak, Bojan, Milovanović, Dubravka S., Kuzmanović, Miroslav M., Savović, Jelena, "Laser-based optical techniques for the detection of chemical agents" in The European Physical Journal Plus, 133, no. 7 (2018):268,
https://doi.org/10.1140/epjp/i2018-12145-4 . .

TY  - JOUR
AU  - Trtica, Milan
AU  - Stašić, Jelena
AU  - Batani, Dimitri
AU  - Benocci, R.
AU  - Narayanan, V.
AU  - Ciganović, Jovan
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1828
AB  - A study of the surface modification of titanium CP grade 2 implant/target with high intensity picosecond (Nd:YAG) laser, operating at 1064 nm wavelength and pulse duration of 40 ps, in gaseous (air) and liquid (water) medium, is presented. The exposure of Ti to a laser pulse energy of 17 mJ in both media - gaseous and liquid, induced specific surface features and phenomena: (i) enhancement of the implant surface roughness (higher in water). In this context, the damage depth is more prominent in water (as high as 40 mu m) vs. air (similar to 14 mu m). Also, the appearance of laser induced periodic surface structures (LIPSS) is recorded in both media, at periphery area, while in water they are registered at lower pulse count; (ii) variation of chemical surface content depending on the applied medium. Thus, in the central irradiation region, the oxygen was absent in air while its concentration was relatively high (6.44 wt%) in case of water; (iii) possibility of direct collection of synthesized titanium based nanoparticles in water environment, and (iv) formation of the plasma above the sample in both mediums, more volumetrically confined in water. These investigations showed that surface structuring and observed phenomena are in strong correlation with the medium used. The liquid - water seems like the medium of choice in regard to titanium implant biocompatibility and bio-activity (the water is a favorable medium for build-up of the oxide layer which affects bioactivity). The process of laser interaction with titanium implant targets was accompanied by the formation of plasma plume, which provides the additional sterilizing effect facilitating contaminant-free conditions. (C) 2017 Elsevier B.V. All rights reserved.
T2  - Applied Surface Science
T1  - Laser-assisted surface modification of Ti-implant in air and water environment
VL  - 428
SP  - 669
EP  - 675
DO  - 10.1016/j.apsusc.2017.09.185
ER  - 

@article{
author = "Trtica, Milan and Stašić, Jelena and Batani, Dimitri and Benocci, R. and Narayanan, V. and Ciganović, Jovan",
year = "2018",
abstract = "A study of the surface modification of titanium CP grade 2 implant/target with high intensity picosecond (Nd:YAG) laser, operating at 1064 nm wavelength and pulse duration of 40 ps, in gaseous (air) and liquid (water) medium, is presented. The exposure of Ti to a laser pulse energy of 17 mJ in both media - gaseous and liquid, induced specific surface features and phenomena: (i) enhancement of the implant surface roughness (higher in water). In this context, the damage depth is more prominent in water (as high as 40 mu m) vs. air (similar to 14 mu m). Also, the appearance of laser induced periodic surface structures (LIPSS) is recorded in both media, at periphery area, while in water they are registered at lower pulse count; (ii) variation of chemical surface content depending on the applied medium. Thus, in the central irradiation region, the oxygen was absent in air while its concentration was relatively high (6.44 wt%) in case of water; (iii) possibility of direct collection of synthesized titanium based nanoparticles in water environment, and (iv) formation of the plasma above the sample in both mediums, more volumetrically confined in water. These investigations showed that surface structuring and observed phenomena are in strong correlation with the medium used. The liquid - water seems like the medium of choice in regard to titanium implant biocompatibility and bio-activity (the water is a favorable medium for build-up of the oxide layer which affects bioactivity). The process of laser interaction with titanium implant targets was accompanied by the formation of plasma plume, which provides the additional sterilizing effect facilitating contaminant-free conditions. (C) 2017 Elsevier B.V. All rights reserved.",
journal = "Applied Surface Science",
title = "Laser-assisted surface modification of Ti-implant in air and water environment",
volume = "428",
pages = "669-675",
doi = "10.1016/j.apsusc.2017.09.185"
}

Trtica, M., Stašić, J., Batani, D., Benocci, R., Narayanan, V.,& Ciganović, J.. (2018). Laser-assisted surface modification of Ti-implant in air and water environment. in Applied Surface Science, 428, 669-675.
https://doi.org/10.1016/j.apsusc.2017.09.185

Trtica M, Stašić J, Batani D, Benocci R, Narayanan V, Ciganović J. Laser-assisted surface modification of Ti-implant in air and water environment. in Applied Surface Science. 2018;428:669-675.
doi:10.1016/j.apsusc.2017.09.185 .

Trtica, Milan, Stašić, Jelena, Batani, Dimitri, Benocci, R., Narayanan, V., Ciganović, Jovan, "Laser-assisted surface modification of Ti-implant in air and water environment" in Applied Surface Science, 428 (2018):669-675,
https://doi.org/10.1016/j.apsusc.2017.09.185 . .

TY  - JOUR
AU  - Živković, Sanja
AU  - Savović, Jelena
AU  - Trtica, Milan
AU  - Mutić, Jelena J.
AU  - Momčilović, Miloš
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1426
AB  - The applicability of nanosecond infrared Transversely Excited Atmospheric (TEA) CO2 laser induced plasma for spectrochemical analysis of aluminum alloys was investigated. The plasma was generated by focusing a pulsed TEA CO2 laser that emits at 10.6 mu m on the Al target in ambient air at atmospheric pressure. The temporal profile of the laser pulse is composed of a 100 ns peak followed by a slowly decaying tail of about 2 mu s. The output pulse energy was approximately 160 mJ, thus the peak output power was estimated to be around 1.6 MW. Time-Integrated Space-Resolved Laser Induced Breakdown Spectroscopy (TISR-LIBS) was employed to obtain the emission spectra. The maximum intensity of emission, with sharp and well resolved spectral lines that were almost free of the background continuum, was obtained from plasma region 2 mm from the target surface. Linear calibration curves for Mg, Cr, Cu and Fe were obtained using aluminum alloy spectrochemical standards. The limits of detection for the investigated elements were in the 2-73 ppm range. Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES) was used as a reference technique to estimate the accuracy of LIBS determination by use of control samples with known compositions. Comparison of the obtained results with those available in the literature confirms that LIBS system based on TEA CO2 laser, in combination with TISR spectral measurements, can be successfully applied to qualitative and quantitative determinations of minor elements in aluminum based alloys. (C) 2017 Elsevier B.V. All rights reserved.
T2  - Journal of Alloys and Compounds
T1  - Elemental analysis of aluminum alloys by Laser Induced Breakdown Spectroscopy based on TEA CO2 laser
VL  - 700
SP  - 175
EP  - 184
DO  - 10.1016/j.jallcom.2017.01.060
ER  - 

@article{
author = "Živković, Sanja and Savović, Jelena and Trtica, Milan and Mutić, Jelena J. and Momčilović, Miloš",
year = "2017",
abstract = "The applicability of nanosecond infrared Transversely Excited Atmospheric (TEA) CO2 laser induced plasma for spectrochemical analysis of aluminum alloys was investigated. The plasma was generated by focusing a pulsed TEA CO2 laser that emits at 10.6 mu m on the Al target in ambient air at atmospheric pressure. The temporal profile of the laser pulse is composed of a 100 ns peak followed by a slowly decaying tail of about 2 mu s. The output pulse energy was approximately 160 mJ, thus the peak output power was estimated to be around 1.6 MW. Time-Integrated Space-Resolved Laser Induced Breakdown Spectroscopy (TISR-LIBS) was employed to obtain the emission spectra. The maximum intensity of emission, with sharp and well resolved spectral lines that were almost free of the background continuum, was obtained from plasma region 2 mm from the target surface. Linear calibration curves for Mg, Cr, Cu and Fe were obtained using aluminum alloy spectrochemical standards. The limits of detection for the investigated elements were in the 2-73 ppm range. Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES) was used as a reference technique to estimate the accuracy of LIBS determination by use of control samples with known compositions. Comparison of the obtained results with those available in the literature confirms that LIBS system based on TEA CO2 laser, in combination with TISR spectral measurements, can be successfully applied to qualitative and quantitative determinations of minor elements in aluminum based alloys. (C) 2017 Elsevier B.V. All rights reserved.",
journal = "Journal of Alloys and Compounds",
title = "Elemental analysis of aluminum alloys by Laser Induced Breakdown Spectroscopy based on TEA CO2 laser",
volume = "700",
pages = "175-184",
doi = "10.1016/j.jallcom.2017.01.060"
}

Živković, S., Savović, J., Trtica, M., Mutić, J. J.,& Momčilović, M.. (2017). Elemental analysis of aluminum alloys by Laser Induced Breakdown Spectroscopy based on TEA CO2 laser. in Journal of Alloys and Compounds, 700, 175-184.
https://doi.org/10.1016/j.jallcom.2017.01.060

Živković S, Savović J, Trtica M, Mutić JJ, Momčilović M. Elemental analysis of aluminum alloys by Laser Induced Breakdown Spectroscopy based on TEA CO2 laser. in Journal of Alloys and Compounds. 2017;700:175-184.
doi:10.1016/j.jallcom.2017.01.060 .

Živković, Sanja, Savović, Jelena, Trtica, Milan, Mutić, Jelena J., Momčilović, Miloš, "Elemental analysis of aluminum alloys by Laser Induced Breakdown Spectroscopy based on TEA CO2 laser" in Journal of Alloys and Compounds, 700 (2017):175-184,
https://doi.org/10.1016/j.jallcom.2017.01.060 . .

TY  - JOUR
AU  - Živković, Sanja
AU  - Momčilović, Miloš
AU  - Staicu, Angela
AU  - Mutić, Jelena J.
AU  - Trtica, Milan
AU  - Savović, Jelena
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1427
AB  - The aim of this study was to develop a simple laser induced breakdown spectroscopy (LIBS) method for quantitative elemental analysis of powdered biological materials based on laboratory prepared calibration samples. The analysis was done using ungated single pulse LIBS in ambient air at atmospheric pressure. Transversely-Excited Atmospheric pressure (TEA) CO2 laser was used as an energy source for plasma generation on samples. The material used for the analysis was a blue-green alga Spirulina, widely used in food and pharmaceutical industries and also in a few biotechnological applications. To demonstrate the analytical potential of this particular LIBS system the obtained spectra were compared to the spectra obtained using a commercial LIBS system based on pulsed Nd:YAG laser. A single sample of known concentration was used to estimate detection limits for Ba, Ca, Fe, Mg, Mn, Si and Sr and compare detection power of these two LIES systems. TEA CO2 laser based LIES was also applied for quantitative analysis of the elements in powder Spirulina samples. Analytical curves for Ba, Fe, Mg, Mn and Sr were constructed using laboratory produced matrix-matched calibration samples. Inductively coupled plasma optical emission spectroscopy (ICP-OES) was used as the reference technique for elemental quantification, and reasonably well agreement between ICP and LIBS data was obtained. Results confirm that, in respect to its sensitivity and precision, TEA CO2 laser based LIBS can be successfully applied for quantitative analysis of macro and micro-elements in algal samples. The fact that nearly all classes of materials can be prepared as powders implies that the proposed method could be easily extended to a quantitative analysis of different kinds of materials, organic, biological or inorganic. (C) 2017 Elsevier B.V. All rights reserved.
T2  - Spectrochimica Acta. Part B: Atomic Spectroscopy
T1  - Spectrochemical analysis of powdered biological samples using transversely excited atmospheric carbon dioxide laser plasma excitation
VL  - 128
SP  - 22
EP  - 29
DO  - 10.1016/j.sab.2016.12.009
ER  - 

@article{
author = "Živković, Sanja and Momčilović, Miloš and Staicu, Angela and Mutić, Jelena J. and Trtica, Milan and Savović, Jelena",
year = "2017",
abstract = "The aim of this study was to develop a simple laser induced breakdown spectroscopy (LIBS) method for quantitative elemental analysis of powdered biological materials based on laboratory prepared calibration samples. The analysis was done using ungated single pulse LIBS in ambient air at atmospheric pressure. Transversely-Excited Atmospheric pressure (TEA) CO2 laser was used as an energy source for plasma generation on samples. The material used for the analysis was a blue-green alga Spirulina, widely used in food and pharmaceutical industries and also in a few biotechnological applications. To demonstrate the analytical potential of this particular LIBS system the obtained spectra were compared to the spectra obtained using a commercial LIBS system based on pulsed Nd:YAG laser. A single sample of known concentration was used to estimate detection limits for Ba, Ca, Fe, Mg, Mn, Si and Sr and compare detection power of these two LIES systems. TEA CO2 laser based LIES was also applied for quantitative analysis of the elements in powder Spirulina samples. Analytical curves for Ba, Fe, Mg, Mn and Sr were constructed using laboratory produced matrix-matched calibration samples. Inductively coupled plasma optical emission spectroscopy (ICP-OES) was used as the reference technique for elemental quantification, and reasonably well agreement between ICP and LIBS data was obtained. Results confirm that, in respect to its sensitivity and precision, TEA CO2 laser based LIBS can be successfully applied for quantitative analysis of macro and micro-elements in algal samples. The fact that nearly all classes of materials can be prepared as powders implies that the proposed method could be easily extended to a quantitative analysis of different kinds of materials, organic, biological or inorganic. (C) 2017 Elsevier B.V. All rights reserved.",
journal = "Spectrochimica Acta. Part B: Atomic Spectroscopy",
title = "Spectrochemical analysis of powdered biological samples using transversely excited atmospheric carbon dioxide laser plasma excitation",
volume = "128",
pages = "22-29",
doi = "10.1016/j.sab.2016.12.009"
}

Živković, S., Momčilović, M., Staicu, A., Mutić, J. J., Trtica, M.,& Savović, J.. (2017). Spectrochemical analysis of powdered biological samples using transversely excited atmospheric carbon dioxide laser plasma excitation. in Spectrochimica Acta. Part B: Atomic Spectroscopy, 128, 22-29.
https://doi.org/10.1016/j.sab.2016.12.009

Živković S, Momčilović M, Staicu A, Mutić JJ, Trtica M, Savović J. Spectrochemical analysis of powdered biological samples using transversely excited atmospheric carbon dioxide laser plasma excitation. in Spectrochimica Acta. Part B: Atomic Spectroscopy. 2017;128:22-29.
doi:10.1016/j.sab.2016.12.009 .

Živković, Sanja, Momčilović, Miloš, Staicu, Angela, Mutić, Jelena J., Trtica, Milan, Savović, Jelena, "Spectrochemical analysis of powdered biological samples using transversely excited atmospheric carbon dioxide laser plasma excitation" in Spectrochimica Acta. Part B: Atomic Spectroscopy, 128 (2017):22-29,
https://doi.org/10.1016/j.sab.2016.12.009 . .

TY  - JOUR
AU  - Savović, Jelena
AU  - Momčilović, Miloš
AU  - Živković, Sanja
AU  - Stancalie, Andrei
AU  - Trtica, Milan
AU  - Kuzmanović, Miroslav M.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1638
AB  - We present a study of the plasma generated by transversely excited atmospheric (TEA) CO2 laser irradiation of a basalt sample. The plasma was induced in air at atmospheric pressure. The same sample was also analyzed using a commercial LIBS system based on Nd:YAG laser and time-gated detection. The main plasma parameters, temperature, and electron number density were determined and analytical capabilities of the two systems compared. Despite differences in laser wavelength, pulse duration, applied fluence, and signal detection scheme, the two systems are comparable in terms of element detectability and limits of detection. In both cases, all elements usually present in geological samples were identified. The estimated limits of detection for most elements were below 100 ppm, while for Cu, Cr, and Sr they were around or below 10 ppm. The obtained results led to the conclusion that simple, cost- effective TEA CO2 LIBS system can find applications for geological explorations.
T2  - Journal of Chemistry
T1  - LIBS Analysis of Geomaterials: Comparative Study of Basalt Plasma Induced by TEA CO2 and Nd:YAG Laser in Air at Atmospheric Pressure
DO  - 10.1155/2017/9513438
ER  - 

@article{
author = "Savović, Jelena and Momčilović, Miloš and Živković, Sanja and Stancalie, Andrei and Trtica, Milan and Kuzmanović, Miroslav M.",
year = "2017",
abstract = "We present a study of the plasma generated by transversely excited atmospheric (TEA) CO2 laser irradiation of a basalt sample. The plasma was induced in air at atmospheric pressure. The same sample was also analyzed using a commercial LIBS system based on Nd:YAG laser and time-gated detection. The main plasma parameters, temperature, and electron number density were determined and analytical capabilities of the two systems compared. Despite differences in laser wavelength, pulse duration, applied fluence, and signal detection scheme, the two systems are comparable in terms of element detectability and limits of detection. In both cases, all elements usually present in geological samples were identified. The estimated limits of detection for most elements were below 100 ppm, while for Cu, Cr, and Sr they were around or below 10 ppm. The obtained results led to the conclusion that simple, cost- effective TEA CO2 LIBS system can find applications for geological explorations.",
journal = "Journal of Chemistry",
title = "LIBS Analysis of Geomaterials: Comparative Study of Basalt Plasma Induced by TEA CO2 and Nd:YAG Laser in Air at Atmospheric Pressure",
doi = "10.1155/2017/9513438"
}

Savović, J., Momčilović, M., Živković, S., Stancalie, A., Trtica, M.,& Kuzmanović, M. M.. (2017). LIBS Analysis of Geomaterials: Comparative Study of Basalt Plasma Induced by TEA CO2 and Nd:YAG Laser in Air at Atmospheric Pressure. in Journal of Chemistry.
https://doi.org/10.1155/2017/9513438

Savović J, Momčilović M, Živković S, Stancalie A, Trtica M, Kuzmanović MM. LIBS Analysis of Geomaterials: Comparative Study of Basalt Plasma Induced by TEA CO2 and Nd:YAG Laser in Air at Atmospheric Pressure. in Journal of Chemistry. 2017;.
doi:10.1155/2017/9513438 .

Savović, Jelena, Momčilović, Miloš, Živković, Sanja, Stancalie, Andrei, Trtica, Milan, Kuzmanović, Miroslav M., "LIBS Analysis of Geomaterials: Comparative Study of Basalt Plasma Induced by TEA CO2 and Nd:YAG Laser in Air at Atmospheric Pressure" in Journal of Chemistry (2017),
https://doi.org/10.1155/2017/9513438 . .