High-gain x-ray lasing at 11.1 nm in sodiumlike copper driven by a 20-J, 2-ps Nd:glass laser.
Evidence of high gain pumped by recombination has been observed in the 5g-4f transition at 11.1 nm in sodiumlike copper ions with use of a 20-J 2-ps Nd:glass laser system. The time- and space-integrated gain coefficient was 8.8 +/- 1.4 cm(-1), indicating a single-transit amplification of ~60 times. This experiment has shown that 2 ps is the optimum pulse duration to drive the sodiumlike copper recombination x-ray lasing at 11.1 nm.
Zhang
J
J
Fill
E E
EE
Li
Y
Y
Schlögl
D
D
Steingruber
J
J
Holden
M
M
Tallents
G J
GJ
Demir
A
A
Zeitoun
P
P
Danson
C
C
Norreys
P A
PA
Walsh
F
F
Key
M H
MH
Lewis
C L
CL
McPhee
A G
AG