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Proceedings Paper

Acceleration of carbon ions in a skin-layer interaction regime in laser ablation experiments
Author(s): Andrei V. Rode; Eugene G. Gamaly; Barry Luther-Davies
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Paper Abstract

The regime of skin-effect interaction was proposed as the mechanism of ion acceleration, and the range of validity of the skin-effect mode was established. The results are illustrated on laser evaporation of graphite with Nd:YAG laser (1.064 micrometers ), KrF laser (248 nm) and ArF laser (193 nm). The UV lasers the interaction has a bi-modal nature: the interaction may proceed initially in the skin effect regime resulting in a few high-energy ions, until the hydrodynamics expansion begins at the later stage. The skin- effect interaction at the initial stage of UV laser pulse gives the first, to our knowledge, explanation for acceleration of ions up to approximately 100 eV at the low laser intensities 108 - 109 W/cm2 and ns-range pulse duration.

Paper Details

Date Published: 1 February 2000
PDF: 10 pages
Proc. SPIE 3885, High-Power Laser Ablation II, (1 February 2000); doi: 10.1117/12.376954
Show Author Affiliations
Andrei V. Rode, Australian National Univ. (Australia)
Eugene G. Gamaly, Australian National Univ. (Australia)
Barry Luther-Davies, Australian National Univ. (Australia)


Published in SPIE Proceedings Vol. 3885:
High-Power Laser Ablation II
Claude R. Phipps; Masayuki Niino, Editor(s)

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