title: Frequency-sheared, time-delayed extreme-ultraviolet pulses produced by high-harmonic generation in argon.
abstract: We report the production of frequency-sheared high harmonics in argon by control of the envelope and chirp of the electric field of the femtosecond driving laser pulse. Using the classic three-step model of high-harmonic generation, we established a direct link between the properties of the harmonics and the fully characterized driving pulses. A simulation of the single-atom response in the strong-field approximation confirms the simple picture and shows good agreement with the experimental results.
authors.affiliation: Department of Physics, Institute of Quantum Electronics, ETH Zurich, CH-8093 Zürich, Switzerland.
authors.forename: W
authors.initials: W
authors.lastname: Kornelis
authors.forename: C P
authors.initials: CP
authors.lastname: Hauri
authors.forename: A
authors.initials: A
authors.lastname: Heinrich
authors.forename: F W
authors.initials: FW
authors.lastname: Helbing
authors.forename: M P
authors.initials: MP
authors.lastname: Anscombe
authors.forename: P
authors.initials: P
authors.lastname: Schlup
authors.forename: J W G
authors.initials: JW
authors.lastname: Tisch
authors.forename: J
authors.initials: J
authors.lastname: Biegert
authors.forename: U
authors.initials: U
authors.lastname: Keller