Transverse spatial coherence of a transient nickellike silver soft-x-ray laser pumped by a single picosecond laser pulse.
The degree of spatial coherence in the direction perpendicular to the target surface is reported for a transient nickellike silver x-ray laser at 13.9 nm. An x-ray laser plasma column was produced by irradiating a slab silver target with a single shaped picosecond laser pulse with energy less than 3 J. Young's double-slit method was applied to measure the fringe visibility as a function of the slit separation for different target lengths. The diameter of the equivalent incoherent source and the coherence radius of the output radiation were determined as well.
Lucianetti
A
A
Max Born Institute, D-12489 Berlin, Germany.
Janulewicz
K A
KA
Kroemer
R
R
Priebe
G
G
Tümmler
J
J
Sandner
W
W
Nickles
P V
PV
Redkorechev
V I
VI