The experimental estimation of temporal and power parameters of the near-surface laser plasma forming

2020 ◽  
Author(s):  
Vladislav A. Baydachenko ◽  
Vladimir N. Khramov ◽  
Dmitry V. Sin'ko
Keyword(s):  
Laser Plasma ◽  
Near Surface ◽  
Experimental Estimation ◽  
Surface Laser

Research of a radiation spectrum of a near-surface laser plasma

2007 ◽  
Author(s):  
Boris V. Anikeev ◽  
Evgeny V. Khaydukov ◽  
Vladimir N. Khramov ◽  
Andrey V. Sevost'yanov ◽  
Rimma Sh. Zatrudina
Keyword(s):  
Laser Plasma ◽  
Radiation Spectrum ◽  
Near Surface ◽  
Surface Laser

Investigation of a near-surface laser plasma by the method of intraresonator laser spectroscopy

1990 ◽  
Vol 53 (6) ◽  
pp. 1259-1266
Author(s):  
V. S. Burakov ◽  
V. P. Lopasov ◽  
P. A. Naumenkov ◽  
S. N. Raikov
Keyword(s):  
Laser Spectroscopy ◽  
Laser Plasma ◽  
Near Surface ◽  
Surface Laser

Detection of the gamma decay of an isomeric low-lying181Ta level excited in a high-temperature near-surface laser plasma

1999 ◽  
Vol 29 (3) ◽  
pp. 191-192 ◽  
Author(s):  
Anatolii V Andreev ◽  
Roman V Volkov ◽  
Vyacheslav M Gordienko ◽  
Aleksandr M Dykhne ◽  
Pavel M Mikheev ◽  
...  
Keyword(s):  
High Temperature ◽  
Laser Plasma ◽  
Near Surface ◽  
Surface Laser ◽  
Gamma Decay

Intracavity spectroscopy measurements of atom and ion densities in near-surface laser plasma

1991 ◽  
Author(s):  
Victor S. Burakov ◽  
V. P. Lopasov ◽  
P. A. Naumenkov ◽  
S. N. Raikov
Keyword(s):  
Laser Plasma ◽  
Near Surface ◽  
Intracavity Spectroscopy ◽  
Surface Laser

Surface Laser Plasma in Laser Treatment of Materials in High Pressure Gases

1991 ◽  
Vol 236 ◽  
Author(s):  
A. Smirnov ◽  
C. Dupuy ◽  
G. Flamant
Keyword(s):  
High Pressure ◽  
Laser Treatment ◽  
Laser Plasma ◽  
Holographic Interferometry ◽  
Aerosol Particles ◽  
Optical Breakdown ◽  
Plasma Generation ◽  
Additional Information ◽  
Surface Laser ◽  
Condensation Front

AbstractUsing holographic interferometry the surface laser plasma generation in high pressure gases has been investigated. Additional information about the generation of surface cover laser plasma, optical breakdown in the presence of aerosol particles and condensation front forming in high pressure gases is given.

scholarly journals The spatial density distribution of the ion flux in the laser-plasma source for deposition of nanocoating on substrates of increased size

2021 ◽  
pp. 81-87
Author(s):  
Victor K. Goncharov ◽  
Michail V. Puzyrev ◽  
Valery Yu. Stupakevich ◽  
Nikita I. Shulhan
Keyword(s):  
Flux Density ◽  
Laser Plasma ◽  
Vacuum Chamber ◽  
Target Material ◽  
Plasma Source ◽  
Secondary Emission ◽  
Ion Flux ◽  
Spatial Density ◽  
Laser Target ◽  
Near Surface

The present work is devoted to the experimental determination of the uniformity of the ion flux density on a substrate with an increased size (~200 cm2 ) in order to form nanostructures by the laser-plasma method. The system for deposition of nanostructures consists of an erosion laser torch of the target material and a substrate located in a vacuum chamber. For smooth adjustment of the parameters of the deposited particles on the substrate, a grid is located between the laser target and the substrate, on which a negative potential is applied relative to the laser target. As a result, a particle stream is formed after the grid, consisting mainly of ions, whose energy can be reliably and smoothly controlled by applying a positive potential to the grid in relation to the substrate. Experiments have shown that the uniformity of the density of ion fluxes on a substrate of increased size (~200 cm2 ) in a laser-plasma source for nanocoating can be increased by applying an accelerating potential to the substrate in relation to the grid. The minimum difference between the ion flux density in the center of the target and at its edge can be reduced to ~5 %. As a result, it is technologically possible to clean the surface of the substrate with ions of the laser target material (secondary emission), create a pseudodiffusion layer of the target material in the near-surface region of the substrate, and apply the laser target material to the substrate. At the same time, all these operations can be performed sequentially without depressurising the vacuum chamber. This allows obtaining coating with good adhesion on substrates of increased size.

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