TY  - JOUR
AU  - Milovanović, Dubravka
AU  - Rajčić, Boris
AU  - Ranković, Dragan
AU  - Stankov, Biljana
AU  - Čekada, Miha
AU  - Ciganović, Jovan
AU  - Đurđević-Milošević, Dragica
AU  - Stević, Zoran
AU  - Kuzmanović, Miroslav
AU  - Šibalija, Tatjana
AU  - Petronić, Sanja
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12723
AB  - This paper presents a study and comparison of surface effects induced by picosecond and nanosecond laser modification of a Ti6Al4V alloy surface under different ambient conditions: air and argon- and nitrogen-rich atmospheres. Detailed surface characterization was performed for all experimental conditions. Damage threshold fluences for picosecond and nanosecond laser irradiation in all three ambient conditions were determined. The observed surface features were a resolidified pool of molten material, craters, hydrodynamic effects and parallel periodic surface structures. Laser-induced periodic surface structures are formed by multi-mode-beam nanosecond laser action and picosecond laser action. Crown-like structures at crater rims are specific features for picosecond Nd:YAG laser action in argon-rich ambient conditions. Elemental analysis of the surfaces indicated nitride compound formation only in the nitrogen-rich ambient conditions. The constituents of the formed plasma were also investigated. Exploring the impact of process control parameters on output responses has been undertaken within the context of laser modification under different environmental conditions. Parametric optimization of the nanosecond laser modification was carried out by implementing an advanced method based on Taguchi’s parametric design and multivariate statistical techniques, and optimal settings are proposed for each atmosphere.
T2  - Micromachines
T1  - Microstructure Formations Resulting from Nanosecond and Picosecond Laser Irradiation of a Ti-Based Alloy under Controlled Atmospheric Conditions and Optimization of the Irradiation Process
VL  - 15
IS  - 1
SP  - 5
DO  - 10.3390/mi15010005
ER  - 

@article{
author = "Milovanović, Dubravka and Rajčić, Boris and Ranković, Dragan and Stankov, Biljana and Čekada, Miha and Ciganović, Jovan and Đurđević-Milošević, Dragica and Stević, Zoran and Kuzmanović, Miroslav and Šibalija, Tatjana and Petronić, Sanja",
year = "2024",
abstract = "This paper presents a study and comparison of surface effects induced by picosecond and nanosecond laser modification of a Ti6Al4V alloy surface under different ambient conditions: air and argon- and nitrogen-rich atmospheres. Detailed surface characterization was performed for all experimental conditions. Damage threshold fluences for picosecond and nanosecond laser irradiation in all three ambient conditions were determined. The observed surface features were a resolidified pool of molten material, craters, hydrodynamic effects and parallel periodic surface structures. Laser-induced periodic surface structures are formed by multi-mode-beam nanosecond laser action and picosecond laser action. Crown-like structures at crater rims are specific features for picosecond Nd:YAG laser action in argon-rich ambient conditions. Elemental analysis of the surfaces indicated nitride compound formation only in the nitrogen-rich ambient conditions. The constituents of the formed plasma were also investigated. Exploring the impact of process control parameters on output responses has been undertaken within the context of laser modification under different environmental conditions. Parametric optimization of the nanosecond laser modification was carried out by implementing an advanced method based on Taguchi’s parametric design and multivariate statistical techniques, and optimal settings are proposed for each atmosphere.",
journal = "Micromachines",
title = "Microstructure Formations Resulting from Nanosecond and Picosecond Laser Irradiation of a Ti-Based Alloy under Controlled Atmospheric Conditions and Optimization of the Irradiation Process",
volume = "15",
number = "1",
pages = "5",
doi = "10.3390/mi15010005"
}

Milovanović, D., Rajčić, B., Ranković, D., Stankov, B., Čekada, M., Ciganović, J., Đurđević-Milošević, D., Stević, Z., Kuzmanović, M., Šibalija, T.,& Petronić, S.. (2024). Microstructure Formations Resulting from Nanosecond and Picosecond Laser Irradiation of a Ti-Based Alloy under Controlled Atmospheric Conditions and Optimization of the Irradiation Process. in Micromachines, 15(1), 5.
https://doi.org/10.3390/mi15010005

Milovanović D, Rajčić B, Ranković D, Stankov B, Čekada M, Ciganović J, Đurđević-Milošević D, Stević Z, Kuzmanović M, Šibalija T, Petronić S. Microstructure Formations Resulting from Nanosecond and Picosecond Laser Irradiation of a Ti-Based Alloy under Controlled Atmospheric Conditions and Optimization of the Irradiation Process. in Micromachines. 2024;15(1):5.
doi:10.3390/mi15010005 .

Milovanović, Dubravka, Rajčić, Boris, Ranković, Dragan, Stankov, Biljana, Čekada, Miha, Ciganović, Jovan, Đurđević-Milošević, Dragica, Stević, Zoran, Kuzmanović, Miroslav, Šibalija, Tatjana, Petronić, Sanja, "Microstructure Formations Resulting from Nanosecond and Picosecond Laser Irradiation of a Ti-Based Alloy under Controlled Atmospheric Conditions and Optimization of the Irradiation Process" in Micromachines, 15, no. 1 (2024):5,
https://doi.org/10.3390/mi15010005 . .

TY  - JOUR
AU  - Petrović, Jelena
AU  - Ranković, Dragan
AU  - Kuzmanović, Miroslav M.
AU  - Savović, Jelena
AU  - Kiris, Vasili
AU  - Nevar, Alena
AU  - Nedelko, Mikhail
AU  - Tarasenko, Nikolai
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10658
AB  - Time-integrated optical emission analysis of laser-induced plasma on Teflon is presented. Plasma was induced under atmospheric pressure air using transversely excited atmospheric CO2 laser pulses. Teflon is a C-based polymer that is, among other things, interesting as a substrate for laser-induced breakdown spectroscopy analysis of liquid samples. This study aimed to determine the optimal experimental conditions for obtaining neutral and ionized C spectral lines and C2 and CN molecular band emission suitable for spectrochemical purposes. Evaluation of plasma parameters was done using several spectroscopic techniques. Stark profiles of appropriate C ionic lines were used to determine electron number density. The ratio of the integral intensity of ionic-to-atomic C spectral lines was used to determine the ionization temperature. A spectral emission of C2 Swan and CN violet bands system was used to determine the temperature of the colder, peripheral parts of plasma. We critically analyzed the use of molecular emission bands as a tool for plasma diagnostics and suggested methods for possible improvements.
T2  - Plasma Science and Technology
T1  - Diagnostics of laser-induced plasma on carbon-based polymer material using atomic and molecular emission spectra
VL  - 25
IS  - 4
SP  - 045507
DO  - 10.1088/2058-6272/aca30f
ER  - 

@article{
author = "Petrović, Jelena and Ranković, Dragan and Kuzmanović, Miroslav M. and Savović, Jelena and Kiris, Vasili and Nevar, Alena and Nedelko, Mikhail and Tarasenko, Nikolai",
year = "2023",
abstract = "Time-integrated optical emission analysis of laser-induced plasma on Teflon is presented. Plasma was induced under atmospheric pressure air using transversely excited atmospheric CO2 laser pulses. Teflon is a C-based polymer that is, among other things, interesting as a substrate for laser-induced breakdown spectroscopy analysis of liquid samples. This study aimed to determine the optimal experimental conditions for obtaining neutral and ionized C spectral lines and C2 and CN molecular band emission suitable for spectrochemical purposes. Evaluation of plasma parameters was done using several spectroscopic techniques. Stark profiles of appropriate C ionic lines were used to determine electron number density. The ratio of the integral intensity of ionic-to-atomic C spectral lines was used to determine the ionization temperature. A spectral emission of C2 Swan and CN violet bands system was used to determine the temperature of the colder, peripheral parts of plasma. We critically analyzed the use of molecular emission bands as a tool for plasma diagnostics and suggested methods for possible improvements.",
journal = "Plasma Science and Technology",
title = "Diagnostics of laser-induced plasma on carbon-based polymer material using atomic and molecular emission spectra",
volume = "25",
number = "4",
pages = "045507",
doi = "10.1088/2058-6272/aca30f"
}

Petrović, J., Ranković, D., Kuzmanović, M. M., Savović, J., Kiris, V., Nevar, A., Nedelko, M.,& Tarasenko, N.. (2023). Diagnostics of laser-induced plasma on carbon-based polymer material using atomic and molecular emission spectra. in Plasma Science and Technology, 25(4), 045507.
https://doi.org/10.1088/2058-6272/aca30f

Petrović J, Ranković D, Kuzmanović MM, Savović J, Kiris V, Nevar A, Nedelko M, Tarasenko N. Diagnostics of laser-induced plasma on carbon-based polymer material using atomic and molecular emission spectra. in Plasma Science and Technology. 2023;25(4):045507.
doi:10.1088/2058-6272/aca30f .

Petrović, Jelena, Ranković, Dragan, Kuzmanović, Miroslav M., Savović, Jelena, Kiris, Vasili, Nevar, Alena, Nedelko, Mikhail, Tarasenko, Nikolai, "Diagnostics of laser-induced plasma on carbon-based polymer material using atomic and molecular emission spectra" in Plasma Science and Technology, 25, no. 4 (2023):045507,
https://doi.org/10.1088/2058-6272/aca30f . .

TY  - CONF
AU  - Spasojević, Jelena
AU  - Vukoje, Ivana
AU  - Nikolić, Nikolina
AU  - Milošević, Milica
AU  - Ranković, Dragan
AU  - Radosavljević, Aleksandra
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12196
AB  - In recent years, drug delivery systems have been one of the most investigated solutions for safer and more efficient therapy. Among many investigated materials, hydrogels with incorporated drugs and/or active substances can be produced in different ways to meet the criteria of biocompatibility, non-toxicity, continuous drug delivery, etc. In our previous work, the Ag- P(NiPAAm/IA) hydrogel nanocomposites were produced by radiolytic method, which enabled the synthesis and sterilization of materials in one technological step. Because of silver ions release, these hydrogel nanocomposites showed good antibacterial potential against both gram- positive and gram-negative bacteria. In this study, we go a step forward and investigate the silver release mechanism by fitting experimentally obtained data with several commonly used kinetics models of drug release.
PB  - Szeged : University of Szeged
C3  - 29th International Symposium on Analytical and Environmental Problems : Proceedings
T1  - Kinetic aspects of silver ions release from Ag-poly(N-isopropylacrylamide/itaconic acid) hydrogel nanocomposites
SP  - 303
EP  - 307
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12196
ER  - 

@conference{
author = "Spasojević, Jelena and Vukoje, Ivana and Nikolić, Nikolina and Milošević, Milica and Ranković, Dragan and Radosavljević, Aleksandra",
year = "2023",
abstract = "In recent years, drug delivery systems have been one of the most investigated solutions for safer and more efficient therapy. Among many investigated materials, hydrogels with incorporated drugs and/or active substances can be produced in different ways to meet the criteria of biocompatibility, non-toxicity, continuous drug delivery, etc. In our previous work, the Ag- P(NiPAAm/IA) hydrogel nanocomposites were produced by radiolytic method, which enabled the synthesis and sterilization of materials in one technological step. Because of silver ions release, these hydrogel nanocomposites showed good antibacterial potential against both gram- positive and gram-negative bacteria. In this study, we go a step forward and investigate the silver release mechanism by fitting experimentally obtained data with several commonly used kinetics models of drug release.",
publisher = "Szeged : University of Szeged",
journal = "29th International Symposium on Analytical and Environmental Problems : Proceedings",
title = "Kinetic aspects of silver ions release from Ag-poly(N-isopropylacrylamide/itaconic acid) hydrogel nanocomposites",
pages = "303-307",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12196"
}

Spasojević, J., Vukoje, I., Nikolić, N., Milošević, M., Ranković, D.,& Radosavljević, A.. (2023). Kinetic aspects of silver ions release from Ag-poly(N-isopropylacrylamide/itaconic acid) hydrogel nanocomposites. in 29th International Symposium on Analytical and Environmental Problems : Proceedings
Szeged : University of Szeged., 303-307.
https://hdl.handle.net/21.15107/rcub_vinar_12196

Spasojević J, Vukoje I, Nikolić N, Milošević M, Ranković D, Radosavljević A. Kinetic aspects of silver ions release from Ag-poly(N-isopropylacrylamide/itaconic acid) hydrogel nanocomposites. in 29th International Symposium on Analytical and Environmental Problems : Proceedings. 2023;:303-307.
https://hdl.handle.net/21.15107/rcub_vinar_12196 .

Spasojević, Jelena, Vukoje, Ivana, Nikolić, Nikolina, Milošević, Milica, Ranković, Dragan, Radosavljević, Aleksandra, "Kinetic aspects of silver ions release from Ag-poly(N-isopropylacrylamide/itaconic acid) hydrogel nanocomposites" in 29th International Symposium on Analytical and Environmental Problems : Proceedings (2023):303-307,
https://hdl.handle.net/21.15107/rcub_vinar_12196 .

TY  - JOUR
AU  - Petrović, Jelena
AU  - Savović, Jelena
AU  - Ranković, Dragan
AU  - Kuzmanović, Miroslav M.
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10167
AB  - This work presents a study of the applicability of laser-induced breakdown spectroscopy based on infrared transversally excited atmospheric CO2 pulsed laser for quantitative analysis of main inorganic elements in lignite coals. Calibration standards were prepared by mixing and pelleting an appropriate amount of rock reference material and graphite. Time-integrated spatially resolved measurements of analyte spectra of standard samples were used to construct univariate calibration curves of Al, Si, Ca, Fe and Mg. The spectral intensities of analytical lines were normalized by the carbon spectral line to compensate for the shot-to-shot fluctuation of plasma parameters. The obtained curves of growth have good linearity in a wide range of concentrations (up to 1% for Al and 3% for Si). Correlation coefficients were in the range of 0.955–0.993, depending on the element. Measured limits of detection (from 2.4 to 25 ppm for analyzed metals and 61 ppm for Si) are low enough to control the coal combustion process in power plants. The Stark-broadening and the Boltzmann plot method were used to determine apparent values of excitation temperatures and electron number densities. A relatively small but measurable influence of the concentration of metal elements on the plasma parameters was observed, which should be considered in quantitative analysis of coal samples with higher inorganic elements content.
T2  - Plasma Chemistry and Plasma Processing
T1  - Quantitative Analysis of Coal by Laser-Induced Breakdown Spectroscopy Using TEA CO2 Laser as the Excitation Source
DO  - 10.1007/s11090-022-10234-6
ER  - 

@article{
author = "Petrović, Jelena and Savović, Jelena and Ranković, Dragan and Kuzmanović, Miroslav M.",
year = "2022",
abstract = "This work presents a study of the applicability of laser-induced breakdown spectroscopy based on infrared transversally excited atmospheric CO2 pulsed laser for quantitative analysis of main inorganic elements in lignite coals. Calibration standards were prepared by mixing and pelleting an appropriate amount of rock reference material and graphite. Time-integrated spatially resolved measurements of analyte spectra of standard samples were used to construct univariate calibration curves of Al, Si, Ca, Fe and Mg. The spectral intensities of analytical lines were normalized by the carbon spectral line to compensate for the shot-to-shot fluctuation of plasma parameters. The obtained curves of growth have good linearity in a wide range of concentrations (up to 1% for Al and 3% for Si). Correlation coefficients were in the range of 0.955–0.993, depending on the element. Measured limits of detection (from 2.4 to 25 ppm for analyzed metals and 61 ppm for Si) are low enough to control the coal combustion process in power plants. The Stark-broadening and the Boltzmann plot method were used to determine apparent values of excitation temperatures and electron number densities. A relatively small but measurable influence of the concentration of metal elements on the plasma parameters was observed, which should be considered in quantitative analysis of coal samples with higher inorganic elements content.",
journal = "Plasma Chemistry and Plasma Processing",
title = "Quantitative Analysis of Coal by Laser-Induced Breakdown Spectroscopy Using TEA CO2 Laser as the Excitation Source",
doi = "10.1007/s11090-022-10234-6"
}

Petrović, J., Savović, J., Ranković, D.,& Kuzmanović, M. M.. (2022). Quantitative Analysis of Coal by Laser-Induced Breakdown Spectroscopy Using TEA CO2 Laser as the Excitation Source. in Plasma Chemistry and Plasma Processing.
https://doi.org/10.1007/s11090-022-10234-6

Petrović J, Savović J, Ranković D, Kuzmanović MM. Quantitative Analysis of Coal by Laser-Induced Breakdown Spectroscopy Using TEA CO2 Laser as the Excitation Source. in Plasma Chemistry and Plasma Processing. 2022;.
doi:10.1007/s11090-022-10234-6 .

Petrović, Jelena, Savović, Jelena, Ranković, Dragan, Kuzmanović, Miroslav M., "Quantitative Analysis of Coal by Laser-Induced Breakdown Spectroscopy Using TEA CO2 Laser as the Excitation Source" in Plasma Chemistry and Plasma Processing (2022),
https://doi.org/10.1007/s11090-022-10234-6 . .

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  - JOUR
AU  - Kiris, Vasili
AU  - Savović, Jelena
AU  - Nevar, Alena
AU  - Kuzmanović, Miroslav M.
AU  - Nedelko, Mikhail
AU  - Ranković, Dragan
AU  - Tarasenko, Nikolai
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10059
AB  - The analytical potential of LIBS for the analysis of liquid solutions was evaluated using two experimental setups, one based on a TEA CO2 laser and the other in which Nd:YAG laser was used. Polytetrafluoroethylene (PTFE) was used as a substrate on which a 10 μL drop of analyte solutions with different concentrations of analyte elements, Be, Cr, Ni, Co, Pb, Tl, and V, were deposited and dried. The samples were deposited either directly on the PTFE or over the pre-deposited layer of copper oxide nanoparticles to study the influence of nanoparticles (NPs) on the ablation and plasma excitation. The obtained results imply that the presence of Cu oxide NPs does not significantly affect the analytical performance of LIBS based on TEA CO2 laser for analysis of solutions. At the same time, it was shown that plasma created by TEA CO2 laser radiation efficiently excited ablated material, making metal elements detectable in the sub-ppm concentration range. On the other hand, Cu oxide NPs significantly influence the formation and the analytical properties of plasma induced by Nd:YAG laser. Without the presence of NPs, the intensities of analyte lines were very low, unsuitable for spectrochemical analysis. At the optimal surface concentration of NPs, 0.36 mg/cm2, the intensity of analyte lines was increased more than ten times. Limits of detection of Be and Cr were 5.3 ppb and 33 ppb, with good linearity of curves of growth.
T2  - Spectrochimica Acta. Part B: Atomic Spectroscopy
T1  - Laser-induced breakdown spectroscopy analysis of water solutions deposited on PTFE surface: Influence of copper oxide nanoparticles and NELIBS effect
VL  - 187
SP  - 106333
DO  - 10.1016/j.sab.2021.106333
ER  - 

@article{
author = "Kiris, Vasili and Savović, Jelena and Nevar, Alena and Kuzmanović, Miroslav M. and Nedelko, Mikhail and Ranković, Dragan and Tarasenko, Nikolai",
year = "2022",
abstract = "The analytical potential of LIBS for the analysis of liquid solutions was evaluated using two experimental setups, one based on a TEA CO2 laser and the other in which Nd:YAG laser was used. Polytetrafluoroethylene (PTFE) was used as a substrate on which a 10 μL drop of analyte solutions with different concentrations of analyte elements, Be, Cr, Ni, Co, Pb, Tl, and V, were deposited and dried. The samples were deposited either directly on the PTFE or over the pre-deposited layer of copper oxide nanoparticles to study the influence of nanoparticles (NPs) on the ablation and plasma excitation. The obtained results imply that the presence of Cu oxide NPs does not significantly affect the analytical performance of LIBS based on TEA CO2 laser for analysis of solutions. At the same time, it was shown that plasma created by TEA CO2 laser radiation efficiently excited ablated material, making metal elements detectable in the sub-ppm concentration range. On the other hand, Cu oxide NPs significantly influence the formation and the analytical properties of plasma induced by Nd:YAG laser. Without the presence of NPs, the intensities of analyte lines were very low, unsuitable for spectrochemical analysis. At the optimal surface concentration of NPs, 0.36 mg/cm2, the intensity of analyte lines was increased more than ten times. Limits of detection of Be and Cr were 5.3 ppb and 33 ppb, with good linearity of curves of growth.",
journal = "Spectrochimica Acta. Part B: Atomic Spectroscopy",
title = "Laser-induced breakdown spectroscopy analysis of water solutions deposited on PTFE surface: Influence of copper oxide nanoparticles and NELIBS effect",
volume = "187",
pages = "106333",
doi = "10.1016/j.sab.2021.106333"
}

Kiris, V., Savović, J., Nevar, A., Kuzmanović, M. M., Nedelko, M., Ranković, D.,& Tarasenko, N.. (2022). Laser-induced breakdown spectroscopy analysis of water solutions deposited on PTFE surface: Influence of copper oxide nanoparticles and NELIBS effect. in Spectrochimica Acta. Part B: Atomic Spectroscopy, 187, 106333.
https://doi.org/10.1016/j.sab.2021.106333

Kiris V, Savović J, Nevar A, Kuzmanović MM, Nedelko M, Ranković D, Tarasenko N. Laser-induced breakdown spectroscopy analysis of water solutions deposited on PTFE surface: Influence of copper oxide nanoparticles and NELIBS effect. in Spectrochimica Acta. Part B: Atomic Spectroscopy. 2022;187:106333.
doi:10.1016/j.sab.2021.106333 .

Kiris, Vasili, Savović, Jelena, Nevar, Alena, Kuzmanović, Miroslav M., Nedelko, Mikhail, Ranković, Dragan, Tarasenko, Nikolai, "Laser-induced breakdown spectroscopy analysis of water solutions deposited on PTFE surface: Influence of copper oxide nanoparticles and NELIBS effect" in Spectrochimica Acta. Part B: Atomic Spectroscopy, 187 (2022):106333,
https://doi.org/10.1016/j.sab.2021.106333 . .

TY  - JOUR
AU  - Kuzmanović, Miroslav M.
AU  - Stancalie, Andrei
AU  - Milovanović, Dubravka S.
AU  - Staicu, Angela
AU  - Damjanović-Vasilić, Ljiljana S.
AU  - Ranković, Dragan
AU  - Savović, Jelena
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9644
AB  - The aim of this study was to demonstrate the potential of Laser-Induced Breakdown Spectroscopy (LIBS) in the analysis of pottery shards, which are commonly the most abundant artefacts recovered at archaeological sites. The analytical capability of LIBS in identification of elements characteristic to inorganic pigments used for decoration was assessed. Based on the specific elements detected in the LIBS spectra of glazes, correlations between the elemental composition of the glaze and the colours of the glazed surface were established. The results were in accordance with the previously reported Energy Dispersive X-ray Fluorescence (EDXRF) and Raman analyses of some of the samples, and with the presently performed XRF analysis. Two important parameters for plasma characterization, temperature and electron number density, were estimated from the spectral data. A potential use of LIBS for depth profiling was also investigated by analysing the silicon to aluminium intensity ratio as a function of the number of laser shots applied. Profilometry analysis of the damages created on the glazed surfaces by laser shots was used to estimate the average ablation depth and ablated mass.
T2  - Optics & Laser Technology
T1  - Analysis of lead-based archaeological pottery glazes by laser induced breakdown spectroscopy
VL  - 134
SP  - 106599
DO  - 10.1016/j.optlastec.2020.106599
ER  - 

@article{
author = "Kuzmanović, Miroslav M. and Stancalie, Andrei and Milovanović, Dubravka S. and Staicu, Angela and Damjanović-Vasilić, Ljiljana S. and Ranković, Dragan and Savović, Jelena",
year = "2021",
abstract = "The aim of this study was to demonstrate the potential of Laser-Induced Breakdown Spectroscopy (LIBS) in the analysis of pottery shards, which are commonly the most abundant artefacts recovered at archaeological sites. The analytical capability of LIBS in identification of elements characteristic to inorganic pigments used for decoration was assessed. Based on the specific elements detected in the LIBS spectra of glazes, correlations between the elemental composition of the glaze and the colours of the glazed surface were established. The results were in accordance with the previously reported Energy Dispersive X-ray Fluorescence (EDXRF) and Raman analyses of some of the samples, and with the presently performed XRF analysis. Two important parameters for plasma characterization, temperature and electron number density, were estimated from the spectral data. A potential use of LIBS for depth profiling was also investigated by analysing the silicon to aluminium intensity ratio as a function of the number of laser shots applied. Profilometry analysis of the damages created on the glazed surfaces by laser shots was used to estimate the average ablation depth and ablated mass.",
journal = "Optics & Laser Technology",
title = "Analysis of lead-based archaeological pottery glazes by laser induced breakdown spectroscopy",
volume = "134",
pages = "106599",
doi = "10.1016/j.optlastec.2020.106599"
}

Kuzmanović, M. M., Stancalie, A., Milovanović, D. S., Staicu, A., Damjanović-Vasilić, L. S., Ranković, D.,& Savović, J.. (2021). Analysis of lead-based archaeological pottery glazes by laser induced breakdown spectroscopy. in Optics & Laser Technology, 134, 106599.
https://doi.org/10.1016/j.optlastec.2020.106599

Kuzmanović MM, Stancalie A, Milovanović DS, Staicu A, Damjanović-Vasilić LS, Ranković D, Savović J. Analysis of lead-based archaeological pottery glazes by laser induced breakdown spectroscopy. in Optics & Laser Technology. 2021;134:106599.
doi:10.1016/j.optlastec.2020.106599 .

Kuzmanović, Miroslav M., Stancalie, Andrei, Milovanović, Dubravka S., Staicu, Angela, Damjanović-Vasilić, Ljiljana S., Ranković, Dragan, Savović, Jelena, "Analysis of lead-based archaeological pottery glazes by laser induced breakdown spectroscopy" in Optics & Laser Technology, 134 (2021):106599,
https://doi.org/10.1016/j.optlastec.2020.106599 . .

TY  - JOUR
AU  - Jakovljević, Ksenija
AU  - Mišljenović, Tomica
AU  - Savović, Jelena
AU  - Ranković, Dragan
AU  - Ranđelović, Dragana
AU  - Mihailović, Nevena
AU  - Jovanović, Slobodan
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8746
AB  - The purpose of this study was to examine the accumulation potential of spontaneously developed Tussilago farfara populations colonizing sites with different levels of anthropogenic pollution. Physical characteristics of the soil are presented, together with the concentrations of macroelements and microelements (Ca, Mg, Fe, S, Al, Pb, Zn, Cu, Cd, Mn, As, Sb, Ag, Ti, and Sr) in both soil and plants. The biological concentration, accumulation, and translocation factors were used to assess the potential for heavy metal accumulation. Considerable differences were found among assessions from unevenly contaminated habitats, particularly in comparison with an unpolluted site. In line with the ore’s characteristics, substrate samples from polluted sites were heavily contaminated with Pb, Zn, As, and Sb. Increased levels of microelements were also detected in plant samples from flotation tailings. Despite active absorption of Zn, Cu, Cd, Mn, and Sr by the plants from mining sites, the detected quantities of these elements in all samples were below the hyperaccumulation threshold. However, the obtained results indicate that the use of T. farfara from such sites in traditional medicine could pose a risk to human health due to accumulation of several toxic elements in the plant’s aboveground tissues. Additionally, as a successful primary colonizer and stabilizer of technogenic substrates, T. farfara has an important role in the initial phases of revegetation of highly contaminated sites. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.
T2  - Environmental Science and Pollution Research
T1  - Accumulation of trace elements in Tussilago farfara colonizing post-flotation tailing sites in Serbia
VL  - 27
IS  - 4
SP  - 4089
EP  - 4103
DO  - 10.1007/s11356-019-07010-z
ER  - 

@article{
author = "Jakovljević, Ksenija and Mišljenović, Tomica and Savović, Jelena and Ranković, Dragan and Ranđelović, Dragana and Mihailović, Nevena and Jovanović, Slobodan",
year = "2020",
abstract = "The purpose of this study was to examine the accumulation potential of spontaneously developed Tussilago farfara populations colonizing sites with different levels of anthropogenic pollution. Physical characteristics of the soil are presented, together with the concentrations of macroelements and microelements (Ca, Mg, Fe, S, Al, Pb, Zn, Cu, Cd, Mn, As, Sb, Ag, Ti, and Sr) in both soil and plants. The biological concentration, accumulation, and translocation factors were used to assess the potential for heavy metal accumulation. Considerable differences were found among assessions from unevenly contaminated habitats, particularly in comparison with an unpolluted site. In line with the ore’s characteristics, substrate samples from polluted sites were heavily contaminated with Pb, Zn, As, and Sb. Increased levels of microelements were also detected in plant samples from flotation tailings. Despite active absorption of Zn, Cu, Cd, Mn, and Sr by the plants from mining sites, the detected quantities of these elements in all samples were below the hyperaccumulation threshold. However, the obtained results indicate that the use of T. farfara from such sites in traditional medicine could pose a risk to human health due to accumulation of several toxic elements in the plant’s aboveground tissues. Additionally, as a successful primary colonizer and stabilizer of technogenic substrates, T. farfara has an important role in the initial phases of revegetation of highly contaminated sites. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.",
journal = "Environmental Science and Pollution Research",
title = "Accumulation of trace elements in Tussilago farfara colonizing post-flotation tailing sites in Serbia",
volume = "27",
number = "4",
pages = "4089-4103",
doi = "10.1007/s11356-019-07010-z"
}

Jakovljević, K., Mišljenović, T., Savović, J., Ranković, D., Ranđelović, D., Mihailović, N.,& Jovanović, S.. (2020). Accumulation of trace elements in Tussilago farfara colonizing post-flotation tailing sites in Serbia. in Environmental Science and Pollution Research, 27(4), 4089-4103.
https://doi.org/10.1007/s11356-019-07010-z

Jakovljević K, Mišljenović T, Savović J, Ranković D, Ranđelović D, Mihailović N, Jovanović S. Accumulation of trace elements in Tussilago farfara colonizing post-flotation tailing sites in Serbia. in Environmental Science and Pollution Research. 2020;27(4):4089-4103.
doi:10.1007/s11356-019-07010-z .

Jakovljević, Ksenija, Mišljenović, Tomica, Savović, Jelena, Ranković, Dragan, Ranđelović, Dragana, Mihailović, Nevena, Jovanović, Slobodan, "Accumulation of trace elements in Tussilago farfara colonizing post-flotation tailing sites in Serbia" in Environmental Science and Pollution Research, 27, no. 4 (2020):4089-4103,
https://doi.org/10.1007/s11356-019-07010-z . .

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  - JOUR
AU  - Savović, Jelena
AU  - Stoiljković, Milovan
AU  - Kuzmanović, Miroslav M.
AU  - Momčilović, Miloš
AU  - Ciganović, Jovan
AU  - Ranković, Dragan
AU  - Živković, Sanja
AU  - Trtica, Milan
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1013
AB  - The present work studies the possibility of using pulsed Transversely Excited Atmospheric (TEA) carbon dioxide laser as an energy source for laser-induced breakdown spectroscopy (LIBS) analysis of rocks under simulated Martian atmospheric conditions. Irradiation of a basaltic rock sample with the laser intensity of 56 MW cm(-2), in carbon-dioxide gas at a pressure of 9 mbar, created target plasma with favorable conditions for excitation of all elements usually found in geological samples. Detection limits of minor constituents (Ba, Cr, Cu, Mn, Ni, Sr, V, and Zr) were in the 3 ppm-30 ppm range depending on the element. The precision varied between 5% and 25% for concentration levels of 1% to 10 ppm, respectively. Generally, the proposed relatively simple TEA CO2 laser-LIBS system provides good sensitivity for geological studies under reduced CO2 pressure. (C) 2016 Elsevier B.V. All rights reserved.
PB  - Elsevier
T2  - Spectrochimica Acta. Part B: Atomic Spectroscopy
T1  - The feasibility of TEA CO2 laser-induced plasma for spectrochemical analysis of geological samples in simulated Martian conditions
VL  - 118
SP  - 127
EP  - 136
DO  - 10.1016/j.sab.2016.02.020
ER  - 

@article{
author = "Savović, Jelena and Stoiljković, Milovan and Kuzmanović, Miroslav M. and Momčilović, Miloš and Ciganović, Jovan and Ranković, Dragan and Živković, Sanja and Trtica, Milan",
year = "2016",
abstract = "The present work studies the possibility of using pulsed Transversely Excited Atmospheric (TEA) carbon dioxide laser as an energy source for laser-induced breakdown spectroscopy (LIBS) analysis of rocks under simulated Martian atmospheric conditions. Irradiation of a basaltic rock sample with the laser intensity of 56 MW cm(-2), in carbon-dioxide gas at a pressure of 9 mbar, created target plasma with favorable conditions for excitation of all elements usually found in geological samples. Detection limits of minor constituents (Ba, Cr, Cu, Mn, Ni, Sr, V, and Zr) were in the 3 ppm-30 ppm range depending on the element. The precision varied between 5% and 25% for concentration levels of 1% to 10 ppm, respectively. Generally, the proposed relatively simple TEA CO2 laser-LIBS system provides good sensitivity for geological studies under reduced CO2 pressure. (C) 2016 Elsevier B.V. All rights reserved.",
publisher = "Elsevier",
journal = "Spectrochimica Acta. Part B: Atomic Spectroscopy",
title = "The feasibility of TEA CO2 laser-induced plasma for spectrochemical analysis of geological samples in simulated Martian conditions",
volume = "118",
pages = "127-136",
doi = "10.1016/j.sab.2016.02.020"
}

Savović, J., Stoiljković, M., Kuzmanović, M. M., Momčilović, M., Ciganović, J., Ranković, D., Živković, S.,& Trtica, M.. (2016). The feasibility of TEA CO2 laser-induced plasma for spectrochemical analysis of geological samples in simulated Martian conditions. in Spectrochimica Acta. Part B: Atomic Spectroscopy
Elsevier., 118, 127-136.
https://doi.org/10.1016/j.sab.2016.02.020

Savović J, Stoiljković M, Kuzmanović MM, Momčilović M, Ciganović J, Ranković D, Živković S, Trtica M. The feasibility of TEA CO2 laser-induced plasma for spectrochemical analysis of geological samples in simulated Martian conditions. in Spectrochimica Acta. Part B: Atomic Spectroscopy. 2016;118:127-136.
doi:10.1016/j.sab.2016.02.020 .

Savović, Jelena, Stoiljković, Milovan, Kuzmanović, Miroslav M., Momčilović, Miloš, Ciganović, Jovan, Ranković, Dragan, Živković, Sanja, Trtica, Milan, "The feasibility of TEA CO2 laser-induced plasma for spectrochemical analysis of geological samples in simulated Martian conditions" in Spectrochimica Acta. Part B: Atomic Spectroscopy, 118 (2016):127-136,
https://doi.org/10.1016/j.sab.2016.02.020 . .

TY  - CONF
AU  - Ranković, Dragan
AU  - Kuzmanović, Miroslav M.
AU  - Savović, Jelena
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9170
AB  - The studied plasma source was a wall stabilized directcurrent arc burning in argon    at    atmospheric    pressure, originally    designed    for    elemental spectrochemical  analysis.The  influence  of oxygenaddition  (1 -20  %)  on the  electron  density  of  mixed  gas  plasmawas investigated  for  two  initial plasma  compositions,  i.e.argon  gas  with  water  aerosol  and and  argon  with water  aerosol  containing  0.5  %  KCl.  The  electron  number  densitieswerecalculated  from  themeasured Stark profiles  of  Hβspectral  line. The  results have  shown  that the  addition  of  oxygenhas  weak  influence  on  electron number density  in  the  studied  central  plasma  zones.  Similar  trends  were observed  regardless  of  the  presence  or  absence  of  easily  ionized  element (potassium).
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2016 : 13th international conference on fundamental and applied aspects of physical chemistry
T1  - The electron number density of argon-oxygen atmospheric pressure plasma
SP  - 147
EP  - 150
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9170
ER  - 

@conference{
author = "Ranković, Dragan and Kuzmanović, Miroslav M. and Savović, Jelena",
year = "2016",
abstract = "The studied plasma source was a wall stabilized directcurrent arc burning in argon    at    atmospheric    pressure, originally    designed    for    elemental spectrochemical  analysis.The  influence  of oxygenaddition  (1 -20  %)  on the  electron  density  of  mixed  gas  plasmawas investigated  for  two  initial plasma  compositions,  i.e.argon  gas  with  water  aerosol  and and  argon  with water  aerosol  containing  0.5  %  KCl.  The  electron  number  densitieswerecalculated  from  themeasured Stark profiles  of  Hβspectral  line. The  results have  shown  that the  addition  of  oxygenhas  weak  influence  on  electron number density  in  the  studied  central  plasma  zones.  Similar  trends  were observed  regardless  of  the  presence  or  absence  of  easily  ionized  element (potassium).",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2016 : 13th international conference on fundamental and applied aspects of physical chemistry",
title = "The electron number density of argon-oxygen atmospheric pressure plasma",
pages = "147-150",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9170"
}

Ranković, D., Kuzmanović, M. M.,& Savović, J.. (2016). The electron number density of argon-oxygen atmospheric pressure plasma. in Physical chemistry 2016 : 13th international conference on fundamental and applied aspects of physical chemistry
Society of Physical Chemists of Serbia., 147-150.
https://hdl.handle.net/21.15107/rcub_vinar_9170

Ranković D, Kuzmanović MM, Savović J. The electron number density of argon-oxygen atmospheric pressure plasma. in Physical chemistry 2016 : 13th international conference on fundamental and applied aspects of physical chemistry. 2016;:147-150.
https://hdl.handle.net/21.15107/rcub_vinar_9170 .

Ranković, Dragan, Kuzmanović, Miroslav M., Savović, Jelena, "The electron number density of argon-oxygen atmospheric pressure plasma" in Physical chemistry 2016 : 13th international conference on fundamental and applied aspects of physical chemistry (2016):147-150,
https://hdl.handle.net/21.15107/rcub_vinar_9170 .

TY  - JOUR
AU  - Momčilović, Miloš
AU  - Kuzmanović, Miroslav M.
AU  - Ranković, Dragan
AU  - Ciganović, Jovan
AU  - Stoiljković, Milovan
AU  - Savović, Jelena
AU  - Trtica, Milan
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/779
AB  - Spatially resolved, time-integrated optical emission spectroscopy was applied for investigation of copper plasma produced by a nanosecond infrared (IR) transversely excited atmospheric (TEA) CO2 laser, operating at 10.6 gm. The effect of surrounding air pressure, in the pressure range 0.1 to 1013 mbar, on plasma formation and its characteristics was investigated. A linear dependence of intensity threshold for plasma formation on logarithm of air pressure was found. Lowering of the air pressure reduces the extent of gas breakdown, enabling better laser-target coupling and thus increases ablation. Optimum air pressure for target plasma formation was 0.1 mbar. Under that pressure, the induced plasma consisted of two clearly distinguished and spatially separated regions. The maximum intensity of emission, with sharp and well-resolved spectral lines and negligibly low background emission, was obtained from a plasma zone 8 mm from the target surface. The estimated excitation temperature in this zone was around 7000 K. The favorable signal to background ratio obtained in this plasma region indicates possible analytical application of TEA CO2 laser produced copper plasma. Detection limits of trace elements present in the Cu sample were on the order of 10 ppm (parts per million). Time-resolved measurements of spatially selected plasma zones were used to find a correlation between the observed spatial position and time delay.
T2  - Applied Spectroscopy
T1  - Optical Emission Studies of Copper Plasma Induced Using Infrared Transversely Excited Atmospheric (IR TEA) Carbon Dioxide Laser Pulses
VL  - 69
IS  - 4
SP  - 419
EP  - 429
DO  - 10.1366/14-07584
ER  - 

@article{
author = "Momčilović, Miloš and Kuzmanović, Miroslav M. and Ranković, Dragan and Ciganović, Jovan and Stoiljković, Milovan and Savović, Jelena and Trtica, Milan",
year = "2015",
abstract = "Spatially resolved, time-integrated optical emission spectroscopy was applied for investigation of copper plasma produced by a nanosecond infrared (IR) transversely excited atmospheric (TEA) CO2 laser, operating at 10.6 gm. The effect of surrounding air pressure, in the pressure range 0.1 to 1013 mbar, on plasma formation and its characteristics was investigated. A linear dependence of intensity threshold for plasma formation on logarithm of air pressure was found. Lowering of the air pressure reduces the extent of gas breakdown, enabling better laser-target coupling and thus increases ablation. Optimum air pressure for target plasma formation was 0.1 mbar. Under that pressure, the induced plasma consisted of two clearly distinguished and spatially separated regions. The maximum intensity of emission, with sharp and well-resolved spectral lines and negligibly low background emission, was obtained from a plasma zone 8 mm from the target surface. The estimated excitation temperature in this zone was around 7000 K. The favorable signal to background ratio obtained in this plasma region indicates possible analytical application of TEA CO2 laser produced copper plasma. Detection limits of trace elements present in the Cu sample were on the order of 10 ppm (parts per million). Time-resolved measurements of spatially selected plasma zones were used to find a correlation between the observed spatial position and time delay.",
journal = "Applied Spectroscopy",
title = "Optical Emission Studies of Copper Plasma Induced Using Infrared Transversely Excited Atmospheric (IR TEA) Carbon Dioxide Laser Pulses",
volume = "69",
number = "4",
pages = "419-429",
doi = "10.1366/14-07584"
}

Momčilović, M., Kuzmanović, M. M., Ranković, D., Ciganović, J., Stoiljković, M., Savović, J.,& Trtica, M.. (2015). Optical Emission Studies of Copper Plasma Induced Using Infrared Transversely Excited Atmospheric (IR TEA) Carbon Dioxide Laser Pulses. in Applied Spectroscopy, 69(4), 419-429.
https://doi.org/10.1366/14-07584

Momčilović M, Kuzmanović MM, Ranković D, Ciganović J, Stoiljković M, Savović J, Trtica M. Optical Emission Studies of Copper Plasma Induced Using Infrared Transversely Excited Atmospheric (IR TEA) Carbon Dioxide Laser Pulses. in Applied Spectroscopy. 2015;69(4):419-429.
doi:10.1366/14-07584 .

Momčilović, Miloš, Kuzmanović, Miroslav M., Ranković, Dragan, Ciganović, Jovan, Stoiljković, Milovan, Savović, Jelena, Trtica, Milan, "Optical Emission Studies of Copper Plasma Induced Using Infrared Transversely Excited Atmospheric (IR TEA) Carbon Dioxide Laser Pulses" in Applied Spectroscopy, 69, no. 4 (2015):419-429,
https://doi.org/10.1366/14-07584 . .

TY  - JOUR
AU  - Momčilović, Miloš
AU  - Ciganović, Jovan
AU  - Ranković, Dragan
AU  - Jovanović, Uroš D.
AU  - Stoiljković, Milovan
AU  - Savović, Jelena
AU  - Trtica, Milan
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/867
AB  - The applicability of a nanosecond infrared (IR) transversely excited atmospheric (TEA) CO2 laser, operating at 10.6 mu m and 100 ns pulse length (initial spike), induced plasma under reduced air pressure for spectrochemical analysis of bronze and brass samples was investigated. The plasma consisted of two clearly distinguished and spatially separated regions and expanded to a distance of about 10 mm from the surface. The elemental composition of the samples was determined using a time-integrated space-resolved laser-induced plasma spectroscopic (TISR-LIPS) technique. Sharp and well-resolved spectral lines mostly atomic, and negligibly low background emission, were obtained from a plasma region 7 mm from the target surface. Good signal to background and signal to noise ratios were obtained. The estimated detection limits for the trace elements Mg, Fe, Al and Ca were in the order of 10 ppm in bronze and around 50 ppm in brass. Damage on the investigated samples induced by TEA CO2 laser radiation was negligible.
T2  - Journal of the Serbian Chemical Society
T1  - Analytical capability of the plasma induced by IR TEA CO2 laser pulses on copper-based alloys
VL  - 80
IS  - 12
SP  - 1505
EP  - 1513
DO  - 10.2298/JSC150416061M
ER  - 

@article{
author = "Momčilović, Miloš and Ciganović, Jovan and Ranković, Dragan and Jovanović, Uroš D. and Stoiljković, Milovan and Savović, Jelena and Trtica, Milan",
year = "2015",
abstract = "The applicability of a nanosecond infrared (IR) transversely excited atmospheric (TEA) CO2 laser, operating at 10.6 mu m and 100 ns pulse length (initial spike), induced plasma under reduced air pressure for spectrochemical analysis of bronze and brass samples was investigated. The plasma consisted of two clearly distinguished and spatially separated regions and expanded to a distance of about 10 mm from the surface. The elemental composition of the samples was determined using a time-integrated space-resolved laser-induced plasma spectroscopic (TISR-LIPS) technique. Sharp and well-resolved spectral lines mostly atomic, and negligibly low background emission, were obtained from a plasma region 7 mm from the target surface. Good signal to background and signal to noise ratios were obtained. The estimated detection limits for the trace elements Mg, Fe, Al and Ca were in the order of 10 ppm in bronze and around 50 ppm in brass. Damage on the investigated samples induced by TEA CO2 laser radiation was negligible.",
journal = "Journal of the Serbian Chemical Society",
title = "Analytical capability of the plasma induced by IR TEA CO2 laser pulses on copper-based alloys",
volume = "80",
number = "12",
pages = "1505-1513",
doi = "10.2298/JSC150416061M"
}

Momčilović, M., Ciganović, J., Ranković, D., Jovanović, U. D., Stoiljković, M., Savović, J.,& Trtica, M.. (2015). Analytical capability of the plasma induced by IR TEA CO2 laser pulses on copper-based alloys. in Journal of the Serbian Chemical Society, 80(12), 1505-1513.
https://doi.org/10.2298/JSC150416061M

Momčilović M, Ciganović J, Ranković D, Jovanović UD, Stoiljković M, Savović J, Trtica M. Analytical capability of the plasma induced by IR TEA CO2 laser pulses on copper-based alloys. in Journal of the Serbian Chemical Society. 2015;80(12):1505-1513.
doi:10.2298/JSC150416061M .

Momčilović, Miloš, Ciganović, Jovan, Ranković, Dragan, Jovanović, Uroš D., Stoiljković, Milovan, Savović, Jelena, Trtica, Milan, "Analytical capability of the plasma induced by IR TEA CO2 laser pulses on copper-based alloys" in Journal of the Serbian Chemical Society, 80, no. 12 (2015):1505-1513,
https://doi.org/10.2298/JSC150416061M . .

TY  - JOUR
AU  - Ranković, Dragan
AU  - Kuzmanović, Miroslav M.
AU  - Pavlović, Mirjana S.
AU  - Stoiljković, Milovan
AU  - Savović, Jelena
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/774
AB  - The effect of nitrogen addition (1-20 %) on atmospheric argon DC arc plasma parameters was investigated. Nitrogen was added to three initial plasma gas compositions: pure argon gas, argon gas with water aerosol, and argon gas with water aerosol containing 0.5 % KCl. Admixtures of nitrogen from 1 up to 10 % (in the case of Ar-N-2-water aerosol plasma) or up to 5 % (in the presence of 0.5 % KCl) produced a more contracted discharge, with larger gradients of electron number density and temperature, as compared to plasma without molecular gas addition. The opposite effect was observed in gas mixtures with 20 % of nitrogen. In that case, the arc core was expanded, and the radial profile of electron density and temperature became flatter as compared to the case of pure argon plasma. The changes in the radial structure of the discharge could be explained by increased thermal conductivity of mixed gas plasma and the presence of molecular ions. Increasing nitrogen content brings plasma closer to thermal equilibrium. To evaluate the effect of nitrogen upon analytic performance of the arc source, limits of detection (LODs) were measured for Zn, Cu, Li, and Rb. In plasma without KCl, the addition of nitrogen resulted in lowering of LODs for Cu, Li and Rb, while the opposite was observed for Zn. In the presence of KCl the addition of nitrogen had little or no effect on LODs for Cu, Li and Rb, while detection limits for Zn were increased.
T2  - Plasma Chemistry and Plasma Processing
T1  - Properties of Argon-Nitrogen Atmospheric Pressure DC Arc Plasma
VL  - 35
IS  - 6
SP  - 1071
EP  - 1095
DO  - 10.1007/s11090-015-9637-6
ER  - 

@article{
author = "Ranković, Dragan and Kuzmanović, Miroslav M. and Pavlović, Mirjana S. and Stoiljković, Milovan and Savović, Jelena",
year = "2015",
abstract = "The effect of nitrogen addition (1-20 %) on atmospheric argon DC arc plasma parameters was investigated. Nitrogen was added to three initial plasma gas compositions: pure argon gas, argon gas with water aerosol, and argon gas with water aerosol containing 0.5 % KCl. Admixtures of nitrogen from 1 up to 10 % (in the case of Ar-N-2-water aerosol plasma) or up to 5 % (in the presence of 0.5 % KCl) produced a more contracted discharge, with larger gradients of electron number density and temperature, as compared to plasma without molecular gas addition. The opposite effect was observed in gas mixtures with 20 % of nitrogen. In that case, the arc core was expanded, and the radial profile of electron density and temperature became flatter as compared to the case of pure argon plasma. The changes in the radial structure of the discharge could be explained by increased thermal conductivity of mixed gas plasma and the presence of molecular ions. Increasing nitrogen content brings plasma closer to thermal equilibrium. To evaluate the effect of nitrogen upon analytic performance of the arc source, limits of detection (LODs) were measured for Zn, Cu, Li, and Rb. In plasma without KCl, the addition of nitrogen resulted in lowering of LODs for Cu, Li and Rb, while the opposite was observed for Zn. In the presence of KCl the addition of nitrogen had little or no effect on LODs for Cu, Li and Rb, while detection limits for Zn were increased.",
journal = "Plasma Chemistry and Plasma Processing",
title = "Properties of Argon-Nitrogen Atmospheric Pressure DC Arc Plasma",
volume = "35",
number = "6",
pages = "1071-1095",
doi = "10.1007/s11090-015-9637-6"
}

Ranković, D., Kuzmanović, M. M., Pavlović, M. S., Stoiljković, M.,& Savović, J.. (2015). Properties of Argon-Nitrogen Atmospheric Pressure DC Arc Plasma. in Plasma Chemistry and Plasma Processing, 35(6), 1071-1095.
https://doi.org/10.1007/s11090-015-9637-6

Ranković D, Kuzmanović MM, Pavlović MS, Stoiljković M, Savović J. Properties of Argon-Nitrogen Atmospheric Pressure DC Arc Plasma. in Plasma Chemistry and Plasma Processing. 2015;35(6):1071-1095.
doi:10.1007/s11090-015-9637-6 .

Ranković, Dragan, Kuzmanović, Miroslav M., Pavlović, Mirjana S., Stoiljković, Milovan, Savović, Jelena, "Properties of Argon-Nitrogen Atmospheric Pressure DC Arc Plasma" in Plasma Chemistry and Plasma Processing, 35, no. 6 (2015):1071-1095,
https://doi.org/10.1007/s11090-015-9637-6 . .

TY  - CONF
AU  - Momčilović, Milan Z.
AU  - Ranković, Dragan
AU  - Kuzmanović, Miroslav M.
AU  - Ciganović, Jovan
AU  - Stoiljković, Milovan
AU  - Savović, Jelena
AU  - Trtica, Milan
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9185
AB  - Spatially-resolved time-integrated optical emission spectroscopy was
applied for investigation of copper plasma produced by a nanosecond
Infrared (IR) Transversely Excited Atmospheric (TEA) CO2 laser, operating
at 10.6 µm. The maximum intensity of emission, with sharp and well
resolved spectral lines, and negligibly low background emission, was
obtained from a plasma zone 8 mm from the target surface. The favorable
signal to background ratio obtained in this plasma region, indicate possible
analytical application of TEA CO2 produced copper plasma. Detection
limits of trace elements present in the Cu sample were in the order of
10 ppm.
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry
T1  - Analytical capability of plasma induced by IR TEA CO2 laser pulses on copper target
VL  - B-16-P
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9185
ER  - 

@conference{
author = "Momčilović, Milan Z. and Ranković, Dragan and Kuzmanović, Miroslav M. and Ciganović, Jovan and Stoiljković, Milovan and Savović, Jelena and Trtica, Milan",
year = "2014",
abstract = "Spatially-resolved time-integrated optical emission spectroscopy was
applied for investigation of copper plasma produced by a nanosecond
Infrared (IR) Transversely Excited Atmospheric (TEA) CO2 laser, operating
at 10.6 µm. The maximum intensity of emission, with sharp and well
resolved spectral lines, and negligibly low background emission, was
obtained from a plasma zone 8 mm from the target surface. The favorable
signal to background ratio obtained in this plasma region, indicate possible
analytical application of TEA CO2 produced copper plasma. Detection
limits of trace elements present in the Cu sample were in the order of
10 ppm.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry",
title = "Analytical capability of plasma induced by IR TEA CO2 laser pulses on copper target",
volume = "B-16-P",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9185"
}

Momčilović, M. Z., Ranković, D., Kuzmanović, M. M., Ciganović, J., Stoiljković, M., Savović, J.,& Trtica, M.. (2014). Analytical capability of plasma induced by IR TEA CO2 laser pulses on copper target. in Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry
Society of Physical Chemists of Serbia., B-16-P.
https://hdl.handle.net/21.15107/rcub_vinar_9185

Momčilović MZ, Ranković D, Kuzmanović MM, Ciganović J, Stoiljković M, Savović J, Trtica M. Analytical capability of plasma induced by IR TEA CO2 laser pulses on copper target. in Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry. 2014;B-16-P.
https://hdl.handle.net/21.15107/rcub_vinar_9185 .

Momčilović, Milan Z., Ranković, Dragan, Kuzmanović, Miroslav M., Ciganović, Jovan, Stoiljković, Milovan, Savović, Jelena, Trtica, Milan, "Analytical capability of plasma induced by IR TEA CO2 laser pulses on copper target" in Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry, B-16-P (2014),
https://hdl.handle.net/21.15107/rcub_vinar_9185 .

TY  - CONF
AU  - Ranković, Dragan
AU  - Kuzmanović, Miroslav M.
AU  - Gaković, Biljana M.
AU  - Pavlović, Mirjana S.
AU  - Stoiljković, Milovan
AU  - Savović, Jelena
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9265
AB  - In this study, the influence of nitrogen gas addition on argon plasma electron
number density was investigated. The plasma source is a wall stabilized direct
current arc burning in argon at atmospheric pressure with continual water aerosol
supply. To the argon gas carrying water aerosol a variable amounts (4, 8 and 11%)
of nitrogen was added. The addition of the molecular gas was carried out by
increasing the flow rate of the N2 and decreasing that of Ar, so that the total flow
rate of the mixed gas was constant 2.7 Lmin-1. The arc was operating in the current
intensity range 4 to 11 A. The electron number density was calculated from the
measured Stark profiles of Hβ 486.13 nm spectral line at the arc axis, for different
arc currents. The radial distribution of electron number density was obtained from
the measured radial profiles of Hβ line. The addition of the molecular gas to the
argon plasma resulted in considerable changes in electron number density.
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2012 : 11th international conference on fundamental and applied aspects of physical chemistry
T1  - The electron number density of argon-nitrogen atmospheric pressure plasma
VL  - 1
SP  - 79
EP  - 81
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9265
ER  - 

@conference{
author = "Ranković, Dragan and Kuzmanović, Miroslav M. and Gaković, Biljana M. and Pavlović, Mirjana S. and Stoiljković, Milovan and Savović, Jelena",
year = "2012",
abstract = "In this study, the influence of nitrogen gas addition on argon plasma electron
number density was investigated. The plasma source is a wall stabilized direct
current arc burning in argon at atmospheric pressure with continual water aerosol
supply. To the argon gas carrying water aerosol a variable amounts (4, 8 and 11%)
of nitrogen was added. The addition of the molecular gas was carried out by
increasing the flow rate of the N2 and decreasing that of Ar, so that the total flow
rate of the mixed gas was constant 2.7 Lmin-1. The arc was operating in the current
intensity range 4 to 11 A. The electron number density was calculated from the
measured Stark profiles of Hβ 486.13 nm spectral line at the arc axis, for different
arc currents. The radial distribution of electron number density was obtained from
the measured radial profiles of Hβ line. The addition of the molecular gas to the
argon plasma resulted in considerable changes in electron number density.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2012 : 11th international conference on fundamental and applied aspects of physical chemistry",
title = "The electron number density of argon-nitrogen atmospheric pressure plasma",
volume = "1",
pages = "79-81",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9265"
}

Ranković, D., Kuzmanović, M. M., Gaković, B. M., Pavlović, M. S., Stoiljković, M.,& Savović, J.. (2012). The electron number density of argon-nitrogen atmospheric pressure plasma. in Physical chemistry 2012 : 11th international conference on fundamental and applied aspects of physical chemistry
Society of Physical Chemists of Serbia., 1, 79-81.
https://hdl.handle.net/21.15107/rcub_vinar_9265

Ranković D, Kuzmanović MM, Gaković BM, Pavlović MS, Stoiljković M, Savović J. The electron number density of argon-nitrogen atmospheric pressure plasma. in Physical chemistry 2012 : 11th international conference on fundamental and applied aspects of physical chemistry. 2012;1:79-81.
https://hdl.handle.net/21.15107/rcub_vinar_9265 .

Ranković, Dragan, Kuzmanović, Miroslav M., Gaković, Biljana M., Pavlović, Mirjana S., Stoiljković, Milovan, Savović, Jelena, "The electron number density of argon-nitrogen atmospheric pressure plasma" in Physical chemistry 2012 : 11th international conference on fundamental and applied aspects of physical chemistry, 1 (2012):79-81,
https://hdl.handle.net/21.15107/rcub_vinar_9265 .

TY  - CONF
AU  - Momčilović, Milan Z.
AU  - Ranković, Dragan
AU  - Kuzmanović, Bojana
AU  - Kuzmanović, Miroslav M.
AU  - Trtica, Milan
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9285
AB  - A study of visible (VIS) optical emission of Cu-plasma, induced by infrared (IR)
Transversely Excited Atmospheric (TEA) CO2 laser, was carried out. Irradiation of
the Cu-target with laser fluence of 8.2 J/cm2
 at low air pressure resulted in the
appearance of intensive plasma over the target. The type, number and intensity of
the emission Cu-spectral lines strongly depend on the observing plasma location
with respect to the target surface. “Primary” plasma gives the largest number of
spectral lines. Also, in contrary to other plasma locations, some ionic lines were
detected from this region. “Secondary” plasma, as a rule, gives the atomic lines.
This region of plasma is very favourable for possible analytical applications (e.g.
quantitative analysis).
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2010 : 10th international conference on fundamental and applied aspects of physical chemistry
T1  - Optical emission measurement of plasma generated by infrared laser beam with Cu target
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9285
ER  - 

@conference{
author = "Momčilović, Milan Z. and Ranković, Dragan and Kuzmanović, Bojana and Kuzmanović, Miroslav M. and Trtica, Milan",
year = "2010",
abstract = "A study of visible (VIS) optical emission of Cu-plasma, induced by infrared (IR)
Transversely Excited Atmospheric (TEA) CO2 laser, was carried out. Irradiation of
the Cu-target with laser fluence of 8.2 J/cm2
 at low air pressure resulted in the
appearance of intensive plasma over the target. The type, number and intensity of
the emission Cu-spectral lines strongly depend on the observing plasma location
with respect to the target surface. “Primary” plasma gives the largest number of
spectral lines. Also, in contrary to other plasma locations, some ionic lines were
detected from this region. “Secondary” plasma, as a rule, gives the atomic lines.
This region of plasma is very favourable for possible analytical applications (e.g.
quantitative analysis).",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2010 : 10th international conference on fundamental and applied aspects of physical chemistry",
title = "Optical emission measurement of plasma generated by infrared laser beam with Cu target",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9285"
}

Momčilović, M. Z., Ranković, D., Kuzmanović, B., Kuzmanović, M. M.,& Trtica, M.. (2010). Optical emission measurement of plasma generated by infrared laser beam with Cu target. in Physical chemistry 2010 : 10th international conference on fundamental and applied aspects of physical chemistry
Society of Physical Chemists of Serbia..
https://hdl.handle.net/21.15107/rcub_vinar_9285

Momčilović MZ, Ranković D, Kuzmanović B, Kuzmanović MM, Trtica M. Optical emission measurement of plasma generated by infrared laser beam with Cu target. in Physical chemistry 2010 : 10th international conference on fundamental and applied aspects of physical chemistry. 2010;.
https://hdl.handle.net/21.15107/rcub_vinar_9285 .

Momčilović, Milan Z., Ranković, Dragan, Kuzmanović, Bojana, Kuzmanović, Miroslav M., Trtica, Milan, "Optical emission measurement of plasma generated by infrared laser beam with Cu target" in Physical chemistry 2010 : 10th international conference on fundamental and applied aspects of physical chemistry (2010),
https://hdl.handle.net/21.15107/rcub_vinar_9285 .

TY  - CONF
AU  - Savović, Jelena
AU  - Ranković, Dragan
AU  - Stoiljković, Milovan
AU  - Kuzmanović, Miroslav M.
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9356
AB  - Spatial distribution of delayed responses of argon and hydrogen spectral line and continuum intensity to square power modulation was investigated in order to get better insight into the processes occurring in argon dc arc plasma. The power was abruptly changed between stationary values, 9 and 3.5 A. For these currents steady state radial distributions of electron number density, temperature and emission intensity were measured. On part of the discharge, radial profiles the power drop and the power jump are both accompanied by intensity peaks which may be explained by displacement of the arc core axis and change in the arc core diameter during the power modulation.
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2008 : 9th international conference on fundamental and applied aspects of physical chemistry
T1  - A spectroscopic investigation of stabilized dc argon arc by power modulation technique
VL  - 1
SP  - 83
EP  - 85
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9356
ER  - 

@conference{
author = "Savović, Jelena and Ranković, Dragan and Stoiljković, Milovan and Kuzmanović, Miroslav M.",
year = "2008",
abstract = "Spatial distribution of delayed responses of argon and hydrogen spectral line and continuum intensity to square power modulation was investigated in order to get better insight into the processes occurring in argon dc arc plasma. The power was abruptly changed between stationary values, 9 and 3.5 A. For these currents steady state radial distributions of electron number density, temperature and emission intensity were measured. On part of the discharge, radial profiles the power drop and the power jump are both accompanied by intensity peaks which may be explained by displacement of the arc core axis and change in the arc core diameter during the power modulation.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2008 : 9th international conference on fundamental and applied aspects of physical chemistry",
title = "A spectroscopic investigation of stabilized dc argon arc by power modulation technique",
volume = "1",
pages = "83-85",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9356"
}

Savović, J., Ranković, D., Stoiljković, M.,& Kuzmanović, M. M.. (2008). A spectroscopic investigation of stabilized dc argon arc by power modulation technique. in Physical chemistry 2008 : 9th international conference on fundamental and applied aspects of physical chemistry
Society of Physical Chemists of Serbia., 1, 83-85.
https://hdl.handle.net/21.15107/rcub_vinar_9356

Savović J, Ranković D, Stoiljković M, Kuzmanović MM. A spectroscopic investigation of stabilized dc argon arc by power modulation technique. in Physical chemistry 2008 : 9th international conference on fundamental and applied aspects of physical chemistry. 2008;1:83-85.
https://hdl.handle.net/21.15107/rcub_vinar_9356 .

Savović, Jelena, Ranković, Dragan, Stoiljković, Milovan, Kuzmanović, Miroslav M., "A spectroscopic investigation of stabilized dc argon arc by power modulation technique" in Physical chemistry 2008 : 9th international conference on fundamental and applied aspects of physical chemistry, 1 (2008):83-85,
https://hdl.handle.net/21.15107/rcub_vinar_9356 .