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Journal articles
Duration of ultrashort pulses in the presence of spatio-temporal coupling
Abstract : We report on a simple method allowing one to decompose the duration of arbitrary ultrashort light pulses, potentially distorted by space-time coupling, into four elementary durations. Such a decomposition shows that, in linear optics, a spatio-temporal pulse can be stretched with respect to its Fourier limit by only three independent phenomena: nonlinear frequency dependence of the spectral phase over the whole spatial extent of the pulse, spectral amplitude inhomogeneities in space, and spectral phase inhomogeneities in space. We illustrate such a decomposition using numerical simulations of complex spatio-temporal femtosecond and attosecond pulses. Finally we show that the contribution of two of these three effects to the pulse duration is measurable without any spectral phase characterization.
https://hal-iogs.archives-ouvertes.fr/hal-00617660
Contributor : Sébastien de Rossi <>
Submitted on : Monday, February 27, 2012 - 11:39:05 AM
Last modification on : Wednesday, September 16, 2020 - 5:38:32 PM
Long-term archiving on: : Monday, May 28, 2012 - 2:20:58 AM
Contributor : Sébastien de Rossi <>
Submitted on : Monday, February 27, 2012 - 11:39:05 AM
Last modification on : Wednesday, September 16, 2020 - 5:38:32 PM
Long-term archiving on: : Monday, May 28, 2012 - 2:20:58 AM
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