Spectroscopic measurements of plasmas temperature and density during high-energy pulsed laser-materials interaction processes

Dominique Astic; Patrick Vigliano; Michel L. Autric; Georges Inglesakis; Prat Christophe

doi:10.1117/12.25886

1 February 1991 Spectroscopic measurements of plasmas temperature and density during high-energy pulsed laser-materials interaction processes

Dominique Astic, Patrick Vigliano, Michel L. Autric, Georges Inglesakis, Prat Christophe

Author Affiliations +

Proceedings Volume 1397, 8th Intl Symp on Gas Flow and Chemical Lasers; (1991) https://doi.org/10.1117/12.25886
Event: Eighth International Symposium on Gas-Flow and Chemical Lasers, 1990, Madrid, Spain

Abstract

This paper concerns the characterization of a plasma by spectroscopic method. The study uses a spectrograph coupled to a gated optical multichannel analyzer (O.M.A) in order to obtain temporally and spatially resolved optical emission spectra of laser-induced aluminum and carbon plasmas. Laser-produced plasmas are described with Local Thermodynamic Equilibrium (L.T.E) assumption. Electron temperature and density informations are evaluated from spectroscopic records. Absorption coefficients have been estimated for CO2 and visible radiations

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Dominique Astic, Patrick Vigliano, Michel L. Autric, Georges Inglesakis, and Prat Christophe "Spectroscopic measurements of plasmas temperature and density during high-energy pulsed laser-materials interaction processes", Proc. SPIE 1397, 8th Intl Symp on Gas Flow and Chemical Lasers, (1 February 1991); https://doi.org/10.1117/12.25886

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