title: Saturated high-repetition-rate 18.9-nm tabletop laser in nickellike molybdenum.
abstract: 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.
authors.affiliation: National Science Foundation Engineering Research Center for Extreme Ultraviolet Science and Technology, Fort Collins, Colorado 80523, USA. bml@lamar.colostate.edu
authors.forename: B M
authors.initials: BM
authors.lastname: Luther
authors.forename: Y
authors.initials: Y
authors.lastname: Wang
authors.forename: M A
authors.initials: MA
authors.lastname: Larotonda
authors.forename: D
authors.initials: D
authors.lastname: Alessi
authors.forename: M
authors.initials: M
authors.lastname: Berrill
authors.forename: M C
authors.initials: MC
authors.lastname: Marconi
authors.forename: J J
authors.initials: JJ
authors.lastname: Rocca
authors.forename: V N
authors.initials: VN
authors.lastname: Shlyaptsev