X-ray laser studies at LLE

Author

Yaakobi, B. ; Shvarts ; Boehly ; Audebert, P. ; Epstein, Richard ; Boswell, B. ; Richardson, Martin C. ; Soures, J.M.

Author_Institution

Lab. for Laser Energetics, Rochester Univ., NY, USA

Volume

16

Issue

5

fYear

1988

fDate

10/1/1988 12:00:00 AM

Firstpage

505

Lastpage

511

Abstract

New target geometries for collisional excitation X-ray laser experiments (in nickel) were proposed, analyzed, and experimentally studied on the glass development laser. The new geometries are designed to yield a higher gain and reduced refraction due to (1) a higher plasma density, (2) a wide lateral density profile, and (3) a concave lateral density profile. These new geometries were (a) two parallel exploding (thin) foils, irradiated from one side only, (b) two ablating (thick) foils, one of which was irradiated on its inner face, and (c) and exploding foil in front of an ablating foil, irradiated by a single laser beam incident on the thin foil. Long-line-focus experiments are described. Theoretical developments included development of a ray-tracing code for an amplifying medium of varying lateral density profile and prediction of high gain on new type transitions in neon-like ions, involving the excitation of an inner (2 s) electron

Keywords

X-ray lasers; exploding wires and foils; foils; ion lasers; nickel; plasma density; plasma production; population inversion; Ni; X-ray laser; collisional excitation; density profile; exploding foils; gain; longline focus experiments; plasma density; ray-tracing code; refraction; target geometries; Geometrical optics; Glass; Laser beams; Laser excitation; Laser theory; Laser transitions; Nickel; Optical refraction; Plasma density; X-ray lasers;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/27.8957

Filename

8957