title: Hour-long continuous operation of a tabletop soft x-ray laser at 50-100 Hz repetition rate.
abstract: We report the uninterrupted operation of an 18.9 nm wavelength tabletop soft x-ray laser at 100 Hz repetition rate for extended periods of time. An average power of about 0.1 mW was obtained by irradiating a Mo target with pulses from a compact diode-pumped chirped pulse amplification Yb:YAG laser. Series of up to 1.8 x 10(5) consecutive laser pulses of ~1 µJ energy were generated by displacing the surface of a high shot-capacity rotating molybdenum target by ~2 µm between laser shots. As a proof-of-principle demonstration of the use of this compact ultrashort wavelength laser in applications requiring a high average power coherent beam, we lithographically printed an array of nanometer-scale features using coherent Talbot self-imaging.
authors: Brendan A
authors: BA
authors: Reagan
authors: Wei
authors: W
authors: Li
authors: Lukasz
authors: L
authors: Urbanski
authors: Keith A
authors: KA
authors: Wernsing
authors: Chase
authors: C
authors: Salsbury
authors: Cory
authors: C
authors: Baumgarten
authors: Mario C
authors: MC
authors: Marconi
authors: Carmen S
authors: CS
authors: Menoni
authors: Jorge J
authors: JJ
authors: Rocca