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Proceedings Paper

Visible Spectroscopy Of Laser Produced Plasma
Author(s): Michel Autric; Patrick Vigliano; Dominique Astic; Philippe Bournot; Daniel Dufresne
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Paper Abstract

In the frame of work of these studies of material hardening using intense shock wave produced during laser material interaction, the knowledge of thermal coupling requires determination of plasma characteristics. Optical emission spectra (3800-7100 Å) of 10,6 μm TEA pulsed CO2 laser produced plasma on aluminum and carbon targets have been studied. CO2 laser laser radiation intensities of 108-109 W/cm las ing for about 1.6 to 8 μs induced plasma formation on aluminum and carbon targets situated in vacuum chamber (10-5 Torr). Spatial and temporal evolution of emission spectra are obtained with a map of different plasma states. Absorption lines, continuum and emission lines were found to predominate successively the spectrum as we get closer to the target.

Paper Details

Date Published: 24 March 1989
PDF: 11 pages
Proc. SPIE 1020, High Power CO2 Laser Systems and Applications, (24 March 1989); doi: 10.1117/12.950054
Show Author Affiliations
Michel Autric, Institute Of Fluid Mechanics (France)
Patrick Vigliano, Institute Of Fluid Mechanics (France)
Dominique Astic, Institute Of Fluid Mechanics (France)
Philippe Bournot, Institute Of Fluid Mechanics (France)
Daniel Dufresne, Institute Of Fluid Mechanics (France)

Published in SPIE Proceedings Vol. 1020:
High Power CO2 Laser Systems and Applications
A. Quenzer, Editor(s)

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