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Opt Lett. 2002 Sep 01;27(17):1561-3. doi: 10.1364/ol.27.001561.

Temporal characterization of short-pulse third-harmonic generation in an atomic gas by a transmission-grating Michelson interferometer.

Optics letters

N A Papadogiannis, G Nersisyan, E Goulielmakis, T P Rakitzis, E Hertz, D Charalambidis, G D Tsakiris, K Witte

PMID: 18026506 DOI: 10.1364/ol.27.001561

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.

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