title: Carrier-envelope phase stable sub-two-cycle pulses tunable around 1.8 µm at 100 kHz.
abstract: We present a simple and efficient concept for the generation of ultrashort infrared pulses with passively stabilized carrier-envelope phase at 100 kHz repetition rate. The central wavelength is tunable between 1.6 and 2.0 µm with pulse durations between 8.2 and 12.8 fs, corresponding to a sub-two-cycle duration over the whole tuning range. Pulse energies of up to 145 nJ are achieved. As a first application we measure the high nonlinearity of multiphoton photoemission from a nanoscale metal tip.
authors.affiliation: Lehrstuhl für BioMolekulare Optik, Ludwig-Maximilians-Universität München, Munich, Germany. christian.homann@physik.lmu.de
authors.forename: Christian
authors.initials: C
authors.lastname: Homann
authors.forename: Maximilian
authors.initials: M
authors.lastname: Bradler
authors.forename: Michael
authors.initials: M
authors.lastname: Förster
authors.forename: Peter
authors.initials: P
authors.lastname: Hommelhoff
authors.forename: Eberhard
authors.initials: E
authors.lastname: Riedle