title: Single-pass high-harmonic generation at 20.8 MHz repetition rate.
abstract: We report on single-pass high-harmonic generation (HHG) with amplified driving laser pulses at a repetition rate of 20.8 MHz. An Yb:YAG Innoslab amplifier system provides 35 fs pulses with 20 W average power at 1030 nm after external pulse compression. Following tight focusing into a xenon gas jet, we observe the generation of high-harmonic radiation of up to the seventeenth order. Our results show that state-of-the-art amplifier systems have become a promising alternative to cavity-assisted HHG for applications that require high repetition rates, such as frequency comb spectroscopy in the extreme UV.
authors: Max-Planck-Institut für Quantenoptik,Garching, Germany. andreas.vernaleken@mpq.mpg.de
authors: Andreas
authors: A
authors: Vernaleken
authors: Johannes
authors: J
authors: Weitenberg
authors: Thomas
authors: T
authors: Sartorius
authors: Peter
authors: P
authors: Russbueldt
authors: Waldemar
authors: W
authors: Schneider
authors: Sarah L
authors: SL
authors: Stebbings
authors: Matthias F
authors: MF
authors: Kling
authors: Peter
authors: P
authors: Hommelhoff
authors: Hans-Dieter
authors: HD
authors: Hoffmann
authors: Reinhart
authors: R
authors: Poprawe
authors: Ferenc
authors: F
authors: Krausz
authors: Theodor W
authors: TW
authors: Hänsch
authors: Thomas
authors: T
authors: Udem