Visible Spectroscopy Of Laser Produced Plasma

Michel Autric; Patrick Vigliano; Dominique Astic; Philippe Bournot; Daniel Dufresne

doi:10.1117/12.950054

24 March 1989 Visible Spectroscopy Of Laser Produced Plasma

Michel Autric, Patrick Vigliano, Dominique Astic, Philippe Bournot, Daniel Dufresne

Proceedings Volume 1020, High Power CO2 Laser Systems and Applications; (1989) https://doi.org/10.1117/12.950054
Event: 1988 International Congress on Optical Science and Engineering, 1988, Hamburg, Germany

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.

Citation Download Citation

Michel Autric, Patrick Vigliano, Dominique Astic, Philippe Bournot, and Daniel Dufresne "Visible Spectroscopy Of Laser Produced Plasma", Proc. SPIE 1020, High Power CO2 Laser Systems and Applications, (24 March 1989); https://doi.org/10.1117/12.950054

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