On the highly directional expansion of laser-produced plasmas
- 21 December 1977
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 10 (18) , L745-L748
- https://doi.org/10.1088/0022-3700/10/18/014
Abstract
The expansion of plasmas produced by focusing a CO2 laser pulse onto solid planar targets is discussed. The plasmas are studied using an extreme ultraviolet spectroheliograph. With titanium and iron targets the plasma blow-off observed in transitions within highly ionised species (e.g. Fe XVI) occurs parallel to the target normal. The plasma is tightly confined to narrow cylindrical structures about 0.7 mm in diameter, and is observed as far as 1 cm from the target surface. The electron density is about 2.8*1018 cm-3 at a distance of 0.7 mm from the target surface and decreases to approximately 6.5*1017 cm-3 at a distance of 2.9 mm from the surface.Keywords
This publication has 4 references indexed in Scilit:
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- Extreme ultraviolet spectroheliograph ATM experiment S082AApplied Optics, 1977
- Space-resolved spectra of laser-produced plasmas in the XUVJournal of Applied Physics, 1976
- The ion and velocity structure in a laser produced plasmaJournal of Physics B: Atomic and Molecular Physics, 1972