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Proceedings Paper

Ion acceleration by cw CO2 laser irradiation in the erosion plume after ablation with excimer laser
Author(s): Oleg Alexeyevic Novodvorsky; Olga D. Khramova; Elena O. Filippova; Rafael Ya. Sagdeev; Christian Wenzel; J. W. Bartha
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Paper Abstract

The erosion plume resulting from an ablation of tantalum target in vacuum with excimer laser radiation (308 nm) was studied using Langmuir probe. The spatial and temporal dependencies of electron probe currents were obtained in real time. The electron temperature of different plume regions was determined from a series of I-U characteristics taken at different distances between probe and target. It was established that the plume electron temperature is nonuniform and has a maximum value in front of the plume. The acceleration of ions on plume irradiation with CW CO2 laser recorded. The increase in ions energy from 25 to 50 eV was observed.

Paper Details

Date Published: 30 April 2002
PDF: 7 pages
Proc. SPIE 4644, Seventh International Conference on Laser and Laser-Information Technologies, (30 April 2002); doi: 10.1117/12.464178
Show Author Affiliations
Oleg Alexeyevic Novodvorsky, Institute on Laser and Information Technologies (Russia)
Olga D. Khramova, Institute on Laser and Information Technologies (Russia)
Elena O. Filippova, Institute on Laser and Information Technologies (Russia)
Rafael Ya. Sagdeev, Institute on Laser and Information Technologies (Russia)
Christian Wenzel, Technische Univ. Dresden (Germany)
J. W. Bartha, Technische Univ. Dresden (Germany)


Published in SPIE Proceedings Vol. 4644:
Seventh International Conference on Laser and Laser-Information Technologies
Vladislav Ya. Panchenko; Vladimir S. Golubev, Editor(s)

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