title: Shaping and spatiotemporal characterization of sub-10-fs pulses focused by a high-NA objective.
abstract: We describe a setup consisting of a 4f pulse shaper and a microscope with a high-NA objective lens and discuss the aspects most relevant for an undistorted spatiotemporal profile of the focused beam. We demonstrate shaper-assisted pulse compression in focus to a sub-10-fs duration using phase-resolved interferometric spectral modulation (PRISM). We introduce a nanostructure-based method for sub-diffraction spatiotemporal characterization of strongly focused pulses. The distortions caused by optical aberrations and space-time coupling from the shaper can be reduced by careful setup design and alignment to about 10 nm in space and 1 fs in time.
authors.forename: Monika
authors.initials: M
authors.lastname: Pawłowska
authors.forename: Sebastian
authors.initials: S
authors.lastname: Goetz
authors.forename: Christian
authors.initials: C
authors.lastname: Dreher
authors.forename: Matthias
authors.initials: M
authors.lastname: Wurdack
authors.forename: Enno
authors.initials: E
authors.lastname: Krauss
authors.forename: Gary
authors.initials: G
authors.lastname: Razinskas
authors.forename: Peter
authors.initials: P
authors.lastname: Geisler
authors.forename: Bert
authors.initials: B
authors.lastname: Hecht
authors.forename: Tobias
authors.initials: T
authors.lastname: Brixner