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Investigation of low-temperature plasmas formed in low-density gases surrounding laser-produced plasmas

Mateusz Majszyk
Mateusz Majszyk
, 
Andrzej Bartnik
Andrzej Bartnik
, 
Wojciech Skrzeczanowski
Wojciech Skrzeczanowski
, 
Tomasz Fok
Tomasz Fok
, 
Łukasz Węgrzyński
Łukasz Węgrzyński
, 
Mirosław Szczurek
Mirosław Szczurek
 et 
Henryk Fiedorowicz
Henryk Fiedorowicz
   | 03 avr. 2023
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Article Category: ORIGINAL PAPER
Publié en ligne: 03 avr. 2023
Pages: 11 - 17
Reçu: 06 oct. 2022
Accepté: 05 déc. 2022
DOI: https://doi.org/10.2478/nuka-2023-0002
Mots clés
© 2023 Mateusz Majszyk et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Fig. 1.

Schematic view of the experimental system for time–space measurements using an optical streak camera and spectral measurements using an echelle spectrometer for a laser-produced plasma.
Schematic view of the experimental system for time–space measurements using an optical streak camera and spectral measurements using an echelle spectrometer for a laser-produced plasma.

Fig. 2.

A special system for mixing noble and molecular gases.
A special system for mixing noble and molecular gases.

Fig. 3.

Spatial–temporal distribution for argon laser-produced plasma. The observation area was 6.6 mm above the LPP source: (a) low-vacuum environment (5 × 10−1 mbar), (b) low argon ambient pressure (~1.3 mbar).
Spatial–temporal distribution for argon laser-produced plasma. The observation area was 6.6 mm above the LPP source: (a) low-vacuum environment (5 × 10−1 mbar), (b) low argon ambient pressure (~1.3 mbar).

Fig. 4.

The spatial–temporal distribution of the intensity obtained from the streak camera for a height of 6.6 mm above the LPP source and at different pressures. The chamber was filled with nitrogen, and the pressure in the chamber was (a) 2.5 mbar, (b) 5 mbar, and (c) 10 mbar.
The spatial–temporal distribution of the intensity obtained from the streak camera for a height of 6.6 mm above the LPP source and at different pressures. The chamber was filled with nitrogen, and the pressure in the chamber was (a) 2.5 mbar, (b) 5 mbar, and (c) 10 mbar.

Fig. 5.

Spatial–temporal distribution in different time scales and heights: (a) height of 2.8 mm (time scale of 200 ns), (b) 6.6 mm (1 μs), and (c) 8.5 mm (2 μs).
Spatial–temporal distribution in different time scales and heights: (a) height of 2.8 mm (time scale of 200 ns), (b) 6.6 mm (1 μs), and (c) 8.5 mm (2 μs).

Fig. 6.

Spectra from XeF transitions D(2Π1/2) – X(2∑) and B(2Π1/2) – X(2∑) area located 6 mm above the LPP source and observed in different moments of the radiation propagation process: (a) start of the process, (b) 100 ns after the start of the process, and (c) 200 ns after the start of the process.
Spectra from XeF transitions D(2Π1/2) – X(2∑) and B(2Π1/2) – X(2∑) area located 6 mm above the LPP source and observed in different moments of the radiation propagation process: (a) start of the process, (b) 100 ns after the start of the process, and (c) 200 ns after the start of the process.

Fig. 7.

Spectra from KF transitions D(2Π1/2) – X(2∑) and B(2∑1/2) – X(2∑) for a mixture of gases 2% SF6, 18% Xe, and 80% He. The investigated region was located 6 mm above the LPP source and observed at differenent moments of the radiation propagation process: (a) start of the process, (b) 50 ns after the start of the process, (c) 100 ns later, (d) 150 ns after the start of the process, and (e) 200 ns after the start of the process.
Spectra from KF transitions D(2Π1/2) – X(2∑) and B(2∑1/2) – X(2∑) for a mixture of gases 2% SF6, 18% Xe, and 80% He. The investigated region was located 6 mm above the LPP source and observed at differenent moments of the radiation propagation process: (a) start of the process, (b) 50 ns after the start of the process, (c) 100 ns later, (d) 150 ns after the start of the process, and (e) 200 ns after the start of the process.

Fig. 8.

Comparison of the spectrum obtained from the simulation in the PGOPHER program (right) with the measurement made with the echelle spectrometer for the states (left) for CN molecules.
Comparison of the spectrum obtained from the simulation in the PGOPHER program (right) with the measurement made with the echelle spectrometer for the states (left) for CN molecules.

Fig. 9.

Spectra showing the duration of the formation processes of the CN molecule: (a) start of the process, (b) 53 μs later, and (c) 63 μs later.
Spectra showing the duration of the formation processes of the CN molecule: (a) start of the process, (b) 53 μs later, and (c) 63 μs later.
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