Spatiotemporal amplitude-and-phase reconstruction by Fourier-transform of interference spectra of high-complex-beams

Details Spatiotemporal amplitude-and-phase reconstruction by Fourier-transform of interference spectra of high-complex-beams Spatiotemporal amplitude-and-phase reconstruction by Fourier-transform of interference spectra of high-complex-beams

2009-11-24

arxiv.org/abs/0911.4589v2

J. Opt. Soc. Am. B 27, 933-940 (2010)

Physics

Optics

9 pages, 7 figures

Scientific paper

10.1364/JOSAB.27.000933

We propose a novel method to reconstruct the spatio-temporal amplitude and phase of the electric field of ultrashort laser pulses using spatially-resolved spectral interferometry. This method is based on a fiber-optic coupler interferometer that has certain advantages in comparison with standard interferometer systems, such as it being alignment-free and selection of the reference beam at a single point. Our technique, which we refer to as STARFISH, offers compactness and simplicity. We report its application to the experimental characterization of chirped pulses and to spatio-temporal reconstructions of a convergent beam as well as plane-plane and spherical-plane waves interferences, which we check with our simulations.

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