Analysis of copper surface features obtained using TEA CO2 laser at reduced air pressure
Нема приказа
Аутори
Momčilović, MilošTrtica, Milan
Ciganović, Jovan
Savović, Jelena
Stašić, Jelena
Kuzmanović, Miroslav M.
Чланак у часопису
Метаподаци
Приказ свих података о документуАпстракт
Interaction of a transversely excited atmospheric (TEA) CO2 laser with rough copper surface, at reduced air pressure, was studied. Optical pulse duration of the laser employed was similar to 2 mu s, with the initial spike FWHM of similar to 100 ns. Laser energy density of similar to 32 J/cm(2) (intensity similar to 10(8) W/cm(2)) was above the plasma ignition threshold. Morphological features of the copper can be summarized as follows: (i) superficial damages, which take crater-shaped form at a higher number of accumulated laser pulses, (ii) development of melt pools with visible bubbles inside the damage region, (iii) formation of solid droplets at near periphery, and (iv) presence of halo effect at the irradiated surface. The laser induced surface changes were influenced by the target plasma formation. The formation of plasma influenced the laser-target interaction in two opposite ways: trough absorption of laser energy by the plasma, i. e. trough the effect of plasma shielding, and ...trough energy transfer from the plasma to the sample. Optical emission spectra were compared for laser induced plasma originated by a single and by cumulative laser pulses. It was found that plasma dimensions and emission intensities have a strong correlation with the number of accumulated laser pulses. Enhancement of both atomic and ionic copper lines was registered when laser induced plasma originated from a single pulse. Chemical analysis of the surface showed a tendency of copper content increase and oxygen content reduction when going from non-irradiated region to the central irradiated region. In the central damage zone, nearly pure copper was present which can be advantageous for some applications due to considerably lower contamination. (C) 2013 Elsevier B.V. All rights reserved.
Кључне речи:
Copper laser modification / ns TEA CO2 laser / Laser induced plasma / Reduced air pressureИзвор:
Applied Surface Science, 2013, 270, 486-494Финансирање / пројекти:
- Ефекти дејства ласерског зрачења и плазме на савремене материјале при њиховој синтези, модификацији и анализи (RS-MESTD-Basic Research (BR or ON)-172019)
- European Scientific Foundation Project Super-Intense Laser-Matter Interactions (SILMI)
DOI: 10.1016/j.apsusc.2013.01.067
ISSN: 0169-4332
WoS: 000316790200074
Scopus: 2-s2.0-84875231231
Колекције
Институција/група
VinčaTY - JOUR AU - Momčilović, Miloš AU - Trtica, Milan AU - Ciganović, Jovan AU - Savović, Jelena AU - Stašić, Jelena AU - Kuzmanović, Miroslav M. PY - 2013 UR - https://vinar.vin.bg.ac.rs/handle/123456789/5387 AB - Interaction of a transversely excited atmospheric (TEA) CO2 laser with rough copper surface, at reduced air pressure, was studied. Optical pulse duration of the laser employed was similar to 2 mu s, with the initial spike FWHM of similar to 100 ns. Laser energy density of similar to 32 J/cm(2) (intensity similar to 10(8) W/cm(2)) was above the plasma ignition threshold. Morphological features of the copper can be summarized as follows: (i) superficial damages, which take crater-shaped form at a higher number of accumulated laser pulses, (ii) development of melt pools with visible bubbles inside the damage region, (iii) formation of solid droplets at near periphery, and (iv) presence of halo effect at the irradiated surface. The laser induced surface changes were influenced by the target plasma formation. The formation of plasma influenced the laser-target interaction in two opposite ways: trough absorption of laser energy by the plasma, i. e. trough the effect of plasma shielding, and trough energy transfer from the plasma to the sample. Optical emission spectra were compared for laser induced plasma originated by a single and by cumulative laser pulses. It was found that plasma dimensions and emission intensities have a strong correlation with the number of accumulated laser pulses. Enhancement of both atomic and ionic copper lines was registered when laser induced plasma originated from a single pulse. Chemical analysis of the surface showed a tendency of copper content increase and oxygen content reduction when going from non-irradiated region to the central irradiated region. In the central damage zone, nearly pure copper was present which can be advantageous for some applications due to considerably lower contamination. (C) 2013 Elsevier B.V. All rights reserved. T2 - Applied Surface Science T1 - Analysis of copper surface features obtained using TEA CO2 laser at reduced air pressure VL - 270 SP - 486 EP - 494 DO - 10.1016/j.apsusc.2013.01.067 ER -
@article{ author = "Momčilović, Miloš and Trtica, Milan and Ciganović, Jovan and Savović, Jelena and Stašić, Jelena and Kuzmanović, Miroslav M.", year = "2013", abstract = "Interaction of a transversely excited atmospheric (TEA) CO2 laser with rough copper surface, at reduced air pressure, was studied. Optical pulse duration of the laser employed was similar to 2 mu s, with the initial spike FWHM of similar to 100 ns. Laser energy density of similar to 32 J/cm(2) (intensity similar to 10(8) W/cm(2)) was above the plasma ignition threshold. Morphological features of the copper can be summarized as follows: (i) superficial damages, which take crater-shaped form at a higher number of accumulated laser pulses, (ii) development of melt pools with visible bubbles inside the damage region, (iii) formation of solid droplets at near periphery, and (iv) presence of halo effect at the irradiated surface. The laser induced surface changes were influenced by the target plasma formation. The formation of plasma influenced the laser-target interaction in two opposite ways: trough absorption of laser energy by the plasma, i. e. trough the effect of plasma shielding, and trough energy transfer from the plasma to the sample. Optical emission spectra were compared for laser induced plasma originated by a single and by cumulative laser pulses. It was found that plasma dimensions and emission intensities have a strong correlation with the number of accumulated laser pulses. Enhancement of both atomic and ionic copper lines was registered when laser induced plasma originated from a single pulse. Chemical analysis of the surface showed a tendency of copper content increase and oxygen content reduction when going from non-irradiated region to the central irradiated region. In the central damage zone, nearly pure copper was present which can be advantageous for some applications due to considerably lower contamination. (C) 2013 Elsevier B.V. All rights reserved.", journal = "Applied Surface Science", title = "Analysis of copper surface features obtained using TEA CO2 laser at reduced air pressure", volume = "270", pages = "486-494", doi = "10.1016/j.apsusc.2013.01.067" }
Momčilović, M., Trtica, M., Ciganović, J., Savović, J., Stašić, J.,& Kuzmanović, M. M.. (2013). Analysis of copper surface features obtained using TEA CO2 laser at reduced air pressure. in Applied Surface Science, 270, 486-494. https://doi.org/10.1016/j.apsusc.2013.01.067
Momčilović M, Trtica M, Ciganović J, Savović J, Stašić J, Kuzmanović MM. Analysis of copper surface features obtained using TEA CO2 laser at reduced air pressure. in Applied Surface Science. 2013;270:486-494. doi:10.1016/j.apsusc.2013.01.067 .
Momčilović, Miloš, Trtica, Milan, Ciganović, Jovan, Savović, Jelena, Stašić, Jelena, Kuzmanović, Miroslav M., "Analysis of copper surface features obtained using TEA CO2 laser at reduced air pressure" in Applied Surface Science, 270 (2013):486-494, https://doi.org/10.1016/j.apsusc.2013.01.067 . .