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Proceedings Paper

Structure, dynamics and optical properties of multicomponent plasma produced near a surface by pulsed CO2 and excimer lasers
Author(s): Vladimir N. Anisimov; Vladimir Yu. Baranov; V. A. Vorobiev; Oleg N. Derkach; Mikhail F. Kanevskii; Dmitrii D. Malyuta; V. I. Nevmerzhitsky; I. V. Novobrantsev; Andrey Yu. Sebrant; Maria A. Stepanova
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Paper Abstract

Results of the experimental studies of dynamics and optical properties of laser-induced plasmas are presented. Lasers with microsecond pulse width at (lambda) equals 0.308 and 10.6 micrometers were used. Spatially and temporally resolved plasma emission spectroscopy and laser beam absorption measurements were used to reveal plasma plume structure. It has been shown that in the case of low absorption at the plasma front, a two component plasma is formed with gas plasma temperature above 3 eV and electron number density in both gas and target vapor plasma in the range 1018 - 3 (DOT) 1019 cm-3. Comparison of the experimental data with computer model predictions is presented.

Paper Details

Date Published: 1 April 1994
PDF: 9 pages
Proc. SPIE 2257, Russia National Conference: Industrial Lasers and Laser Material Processing, (1 April 1994); doi: 10.1117/12.171661
Show Author Affiliations
Vladimir N. Anisimov, Moscow Institute of Physics and Technology (Russia)
Vladimir Yu. Baranov, Moscow Institute of Physics and Technology (Russia)
V. A. Vorobiev, Moscow Institute of Physics and Technology (Russia)
Oleg N. Derkach, Moscow Institute of Physics and Technology (Russia)
Mikhail F. Kanevskii, Moscow Institute of Physics and Technology (Russia)
Dmitrii D. Malyuta, Moscow Institute of Physics and Technology (Russia)
V. I. Nevmerzhitsky, Moscow Institute of Physics and Technology (Russia)
I. V. Novobrantsev, Moscow Institute of Physics and Technology (Russia)
Andrey Yu. Sebrant, Moscow Institute of Physics and Technology (Russia)
Maria A. Stepanova, Moscow Institute of Physics and Technology (Russia)


Published in SPIE Proceedings Vol. 2257:
Russia National Conference: Industrial Lasers and Laser Material Processing
Vladislav Ya. Panchenko; Vladimir S. Golubev, Editor(s)

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