title: Characterization of high-intensity sub-4-fs laser pulses using spatially encoded spectral shearing interferometry.
abstract: We report on the full amplitude and phase characterization of high-intensity few-cycle laser pulses generated in a single-stage hollow core fiber system with subsequent compression by ultrabroadband chirped mirrors. We use a spatially-encoded arrangement (SEA) spectral phase interferometry for direct electric field reconstruction (SPIDER) with spectral filters for ancilla generation to characterize the sub-4 fs pulses with spatial resolution.
authors.affiliation: Blackett Laboratory, Imperial College, London SW7 2AZ, UK. t.witting@imperial.ac.uk
authors.forename: Tobias
authors.initials: T
authors.lastname: Witting
authors.forename: Felix
authors.initials: F
authors.lastname: Frank
authors.forename: Christopher A
authors.initials: CA
authors.lastname: Arrell
authors.forename: William A
authors.initials: WA
authors.lastname: Okell
authors.forename: Jonathan P
authors.initials: JP
authors.lastname: Marangos
authors.forename: John W G
authors.initials: JW
authors.lastname: Tisch