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Opt Lett. 2002 Apr 01;27(7):548-50. doi: 10.1364/ol.27.000548.

Direct space time-characterization of the electric fields of ultrashort optical pulses.

Optics letters

C Dorrer, E M Kosik, I A Walmsley

PMID: 18007861 DOI: 10.1364/ol.27.000548

Abstract

We report the complete spatiotemporal characterization of ultrashort light pulses by use of a self-referencing device based on shearing interferometry in the space and frequency domains. The apparatus combines a spatially resolved spectral shearing interferometer with a spectrally resolved spatial shearing interferometer. The electric field as a function of one transverse spatial coordinate and time is obtained from a single experimental trace by means of a direct and fast algebraic phase reconstruction algorithm. The method has been tested in several common laboratory situations.

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