title: Ptychographic ultrafast pulse reconstruction.
abstract: We demonstrate a new ultrafast pulse reconstruction modality that is somewhat reminiscent of frequency-resolved optical gating but uses a modified setup and a conceptually different reconstruction algorithm that is derived from ptychography. Even though it is a second-order correlation scheme, it shows no time ambiguity. Moreover, the number of spectra to record is considerably smaller than in most other related schemes which, together with a robust algorithm, leads to extremely fast convergence of the reconstruction.
authors.forename: D
authors.initials: D
authors.lastname: Spangenberg
authors.forename: E
authors.initials: E
authors.lastname: Rohwer
authors.forename: M H
authors.initials: MH
authors.lastname: Brügmann
authors.forename: T
authors.initials: T
authors.lastname: Feurer