Energy distribution of charged particles in laser erosion plume on ablation of solid metallic targets with excimer laser

Oleg Alexeyevic Novodvorsky; Elena O. Filippova; Olga D. Khramova; Alexsandr K. Shevelev

doi:10.1117/12.418797

12 March 2001 Energy distribution of charged particles in laser erosion plume on ablation of solid metallic targets with excimer laser

Oleg Alexeyevic Novodvorsky, Elena O. Filippova, Olga D. Khramova, Alexsandr K. Shevelev

Author Affiliations +

Proceedings Volume 4352, Laser Optics 2000: Ultrafast Optics and Superstrong Laser Fields; (2001) https://doi.org/10.1117/12.418797
Event: Laser Optics 2000, 2000, St. Petersburg, Russian Federation

Abstract

The Langmuir probe was used to study erosion plume resulting from ablation of a tantalum target in vacuum with excimer laser (308 nm) radiation. The spatial and temporal dependencies of electron and ion probe currents were obtained in real time. Relying upon a series of dependencies of electron probe currents on the value of probe potential, electron temperature of different plume regions was taken at various distances from the target. It was established that the plume electron temperature is non-uniform. The ion concentration in the plume determined at various distances from the target.

Citation Download Citation

Oleg Alexeyevic Novodvorsky, Elena O. Filippova, Olga D. Khramova, and Alexsandr K. Shevelev "Energy distribution of charged particles in laser erosion plume on ablation of solid metallic targets with excimer laser", Proc. SPIE 4352, Laser Optics 2000: Ultrafast Optics and Superstrong Laser Fields, (12 March 2001); https://doi.org/10.1117/12.418797

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