title: Frequency-resolved optical-gating measurements of ultrashort pulses using surface third-harmonic generation.
abstract: We demonstrate what is to our knowledge the first frequency-resolved optical gating (FROG) technique to measure ultrashort pulses from an unamplified Ti:sapphire laser oscillator without direction-of-time ambiguity. This technique utilizes surface third-harmonic generation as the nonlinear-optical effect and, surprisingly, is the most sensitive third-order FROG geometry yet.
authors.forename: T
authors.initials: T
authors.lastname: Tsang
authors.forename: M A
authors.initials: MA
authors.lastname: Krumbügel
authors.forename: K W
authors.initials: KW
authors.lastname: Delong
authors.forename: D N
authors.initials: DN
authors.lastname: Fittinghoff
authors.forename: R
authors.initials: R
authors.lastname: Trebino