Electronic Resource
Woodbury, NY
:
American Institute of Physics (AIP)
Applied Physics Letters
55 (1989), S. 223-225
ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
We propose a 1-cm-long cylinder-type target as the gain medium of a recombination-pumped extreme-ultraviolet (XUV) laser. The gain medium plasma was pumped by a long-pulse CO2 laser (400 J energy in 50 ns pulse duration). At the C VI 3d–2p transition (18.2 nm) we obtained the gain-length product up to 2.4, which was estimated from the line intensity ratio of the axial to transverse directions. The electron temperature of 54 eV and density of 1.2×1019 cm−3 near the cylinder wall measured using soft-x-ray spectroscopy satisfied the condition for the generation of the population inversion between n=3 and 2 levels of the C VI ions.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.101914
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