title: Characterization of sub-6-fs optical pulses with spectral phase interferometry for direct electric-field reconstruction.
abstract: We demonstrate spectral phase interferometry for direct electric-field reconstruction (SPIDER) as a novel method to characterize sub-6-fs pulses with nanojoule pulse energy. SPIDER reconstructs pulse phase and amplitude from a measurement of only two optical spectra by use of a fast noniterative algorithm. SPIDER is well suited to the measurement of ultrabroadband pulses because it is quite insensitive to crystal phase-matching bandwidth and to unknown detector spectral responsivity. Moreover, it combines highly accurate pulse-shape measurement with the potential for online laser system diagnostics at video refresh rates.
authors: L
authors: L
authors: Gallmann
authors: D H
authors: DH
authors: Sutter
authors: N
authors: N
authors: Matuschek
authors: G
authors: G
authors: Steinmeyer
authors: U
authors: U
authors: Keller
authors: C
authors: C
authors: Iaconis
authors: I A
authors: IA
authors: Walmsley