title: Adaptive spatial control of fiber modes and their excitation for high-harmonic generation.
abstract: We present the control of high-harmonic generation (HHG) in hollow fibers using adaptive pulse shaping techniques. The shaping capabilities of our spatial light modulator (SLM) are demonstrated by the excitation of specific fiber modes inside a hollow fiber with a helium-neon laser. Afterwards spatially shaped ultrashort pulses are used to generate phase-matched high-harmonic radiation in a fiber. We show that by controlling the mode structure, we can manipulate the spatial and spectral properties of the generated harmonics.
authors.forename: D
authors.initials: D
authors.lastname: Walter
authors.forename: T
authors.initials: T
authors.lastname: Pfeifer
authors.forename: C
authors.initials: C
authors.lastname: Winterfeldt
authors.forename: R
authors.initials: R
authors.lastname: Kemmer
authors.forename: R
authors.initials: R
authors.lastname: Spitzenpfeil
authors.forename: G
authors.initials: G
authors.lastname: Gerber
authors.forename: C
authors.initials: C
authors.lastname: Spielmann