X-ray laser research at the LULI (Palaiseau)

Journal Article · Sat Oct 01 04:00:00 EDT 1988 · IEEE Trans. Plasma Sci.; (United States)

DOI:https://doi.org/10.1109/27.8956· OSTI ID:6357559

Jamelot, G; Jaegle, P; Carillon, A; Gadi, F; Gauthe, B; Guennou, H; Klisnick, A; Moller, C; Sureau, A ^[1]

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1. Laboratoire de Spectroscopie Atomique et Ionique, Batiment 350, Universite Paris Sud, 91405 Orsay (FR)

The X-ray laser program at Palaiseau is based on the recombination scheme in lithiumlike ions, which requires a moderate pump power and seems to be promising for the purpose of scaling to shorter wavelengths. In aluminum plasmas, peak gain values of 2-2.5 cm/sup -1/ have been obtained at a wavelength of 105.7 A corresponding to the 3d-5f transition, 6 ns after the top of a 2 ns laser pulse. The same transition in sulfur is emitted at 65.2 A and has shown a gain of 1 cm/sup -1/ in a preliminary time-integrated experiment. Simulations using a collisional-radiative model as the postprocessor of a hydrodynamic numerical code predict amplifications for the 3d-4f, 3d-5f, and 4d-5f transitions. A new experiment, in progress at the present time, has been designed to enhance the gain-length product up to 10-15 at 105.7 A. The recently extended facilities of the LULI make it possible to produce a 6-cm-long plasma column, keeping the flux density at the same level as in the previous experiments.

• OSTI ID: 6357559
• Journal Information: IEEE Trans. Plasma Sci.; (United States), Journal Name: IEEE Trans. Plasma Sci.; (United States) Vol. 16:5; ISSN ITPSB
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
656001 -- Condensed Matter Physics-- Solid-State Plasma
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALUMINIUM
AMPLIFICATION
CHARGED PARTICLES
COLLISIONAL PLASMA
DATA
ELEMENTS
EMISSION
EXPERIMENTAL DATA
FLUX DENSITY
GAIN
INFORMATION
IONS
LASER-PRODUCED PLASMA
LASERS
LITHIUM IONS
METALS
NONMETALS
NUMERICAL DATA
PLASMA
PLASMA SIMULATION
RECOMBINATION
RESEARCH PROGRAMS
SIMULATION
SULFUR
WAVELENGTHS
X-RAY LASERS