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Updated: Jun 19, 2026

An Experimental Protocol for Femtosecond NIR/UV - XUV Pump-Probe Experiments with Free-Electron Lasers
Published on: October 23, 2018
Suppression of perturbed free-induction decay and noise in experimental ultrafast pump-probe data
Patrick Nuernberger1, Kevin F Lee, Adeline Bonvalet
1Laboratoire d'Optique et Biosciences, Ecole Polytechnique, CNRS, France.
Abstract:
We apply a Fourier filtering technique for the global removal of coherent contributions, like perturbed free-induction decay, and noise, to experimental pump-probe spectra. A further filtering scheme gains access to spectra otherwise only recordable by scanning the probe's center frequency with adjustable spectral resolution. These methods cleanse pump-probe data and allow improved visualization and simpler analysis of the contained dynamics. We demonstrate these filters using visible pump/mid-infrared probe spectroscopy of ligand dissociation in carboxyhemoglobin.
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