title: Temporal characterization of short-pulse third-harmonic generation in an atomic gas by a transmission-grating Michelson interferometer.
abstract: By use of a transmission-grating-based Michelson interferometer, second-order interferometric as well as intensity autocorrelation traces of the third harmonic of a Ti:sapphire 50-fs laser beam produced in Ar have been measured. The duration of the harmonic is found to be that expected from lowest-order perturbation theory. At this wavelength, the performance of the interferometer with respect to pulse-front distortion and dispersion is found to be satisfactory. This result is a first step toward the use of the interferometer for the temporal characterization of higher harmonics or harmonic superposition forming attosecond pulse trains.
authors.forename: N A
authors.initials: NA
authors.lastname: Papadogiannis
authors.forename: G
authors.initials: G
authors.lastname: Nersisyan
authors.forename: E
authors.initials: E
authors.lastname: Goulielmakis
authors.forename: T P
authors.initials: TP
authors.lastname: Rakitzis
authors.forename: E
authors.initials: E
authors.lastname: Hertz
authors.forename: D
authors.initials: D
authors.lastname: Charalambidis
authors.forename: G D
authors.initials: GD
authors.lastname: Tsakiris
authors.forename: K
authors.initials: K
authors.lastname: Witte