title: Demonstration of a 100 Hz repetition rate gain-saturated diode-pumped table-top soft x-ray laser.
abstract: We demonstrate the operation of a gain-saturated table-top soft x-ray laser at 100 Hz repetition rate. The laser generates an average power of 0.15 mW at λ=18.9  nm, the highest laser power reported to date from a sub-20-nm wavelength compact source. Picosecond laser pulses of 1.5 μJ energy were produced at λ=18.9  nm by amplification in a Mo plasma created by tailoring the temporal intensity profile of single pump pulses with 1 J energy produced by a diode-pumped chirped pulse amplification Yb:YAG laser. Lasing was also obtained in the 13.9 nm line of Ni-like Ag. These results increase by an order of magnitude the repetition rate of plasma-based soft x-ray lasers opening the path to milliwatt average power table-top lasers at sub-20 nm wavelengths.
authors.affiliation: NSF Engineering Research Center for Extreme Ultraviolet Science and Technology, Fort Collins, Colorado 80523, USA. breagan@engr.colostate.edu
authors.forename: Brendan A
authors.initials: BA
authors.lastname: Reagan
authors.forename: Keith A
authors.initials: KA
authors.lastname: Wernsing
authors.forename: Alden H
authors.initials: AH
authors.lastname: Curtis
authors.forename: Federico J
authors.initials: FJ
authors.lastname: Furch
authors.forename: Bradley M
authors.initials: BM
authors.lastname: Luther
authors.forename: Dinesh
authors.initials: D
authors.lastname: Patel
authors.forename: Carmen S
authors.initials: CS
authors.lastname: Menoni
authors.forename: Jorge J
authors.initials: JJ
authors.lastname: Rocca