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 . .