Interaction of cw CO2 laser radiation with plasma near-metallic substrate surface

V. V. Azharonok; S. A. Astapchik; Alexandre M. Zabelin; Vladimir S. Golubev; V. S. Golubev; A. N. Grezev; Igor V. Filatov; N. I. Chubrik; V. D. Shimanovich

doi:10.1117/12.394126

27 July 2000 Interaction of cw CO₂ laser radiation with plasma near-metallic substrate surface

V. V. Azharonok, S. A. Astapchik, Alexandre M. Zabelin, Vladimir S. Golubev, V. S. Golubev, A. N. Grezev, Igor V. Filatov, N. I. Chubrik, V. D. Shimanovich

Author Affiliations +

Proceedings Volume 4165, Progress in Research and Development of High-Power Industrial CO2 Lasers; (2000) https://doi.org/10.1117/12.394126
Event: Progress in Research and Development of High-Power Industrial CO2 Lasers, 2000, Russia, Russian Federation

Abstract

Optical and spectroscopic methods were used in studying near-surface plasma that is formed under the effect CW CO₂ laser of (2- 5)x10⁶W/cm² power density upon stainless steel in He and Ar shielding gases. The variation of plume spatial structure with time has been studied, the outflow of gas-vapor jets from the interaction area has been characterized. The spectra of plasma plume pulsations have been obtained for the frequency range Δf = 0-1 MHz. The temperature and electron concentration of plasma plume have been found under radiation effect upon the target of stainless steel. Consideration has been given to the most probable mechanisms of CW laser radiation-metal non-stationary interaction.

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V. V. Azharonok, S. A. Astapchik, Alexandre M. Zabelin, Vladimir S. Golubev, V. S. Golubev, A. N. Grezev, Igor V. Filatov, N. I. Chubrik, and V. D. Shimanovich "Interaction of cw CO₂ laser radiation with plasma near-metallic substrate surface", Proc. SPIE 4165, Progress in Research and Development of High-Power Industrial CO2 Lasers, (27 July 2000); https://doi.org/10.1117/12.394126

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