Saturated high-repetition-rate 18.9-nm tabletop laser in nickellike molybdenum.
We report saturated operation of an 18.9-nm laser at 5-Hz repetition rate. An amplification with a gain-length product GL of 15.5 is obtained in the 4d 1S0-4p 1P1 laser line of Ni-like Mo in plasmas heated at grazing incidence with approximately 1-J pulses of 8.1-ps duration from a tabletop laser system. Lasing is obtained over a broad range of time delays and pumping conditions. We also measure a GL of 13.5 in the 22.6-nm transition of the same ion. The results are of interest for numerous applications requiring high-repetition-rate lasers at wavelengths below 20 nm.
Luther
B M
BM
National Science Foundation Engineering Research Center for Extreme Ultraviolet Science and Technology, Fort Collins, Colorado 80523, USA. bml@lamar.colostate.edu
Wang
Y
Y
Larotonda
M A
MA
Alessi
D
D
Berrill
M
M
Marconi
M C
MC
Rocca
J J
JJ
Shlyaptsev
V N
VN