Heidelberg 2015 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 29: Interaction with VUV and X-ray light I
A 29.7: Vortrag
Donnerstag, 26. März 2015, 12:45–13:00, C/HSW
Single-shot autocorrelation in the vacuum ultraviolet spectral range — •Dimitrios Rompotis1,2,3, Thomas Gebert1,2,3, Marek Wieland1,2,3, Theophilos Maltezopoulos1,2,3, and Markus Drescher1,2,3 — 1Institut fuer Experimentalphysik Universitaet Hamburg, Hamburg, Germany — 2The Hamburg Centre for Ultrafast Imaging (CUI), Hamburg, Germany — 3Centre for Free-Electron-Laser Science, Hamburg, Germany
We introduce a method for single-shot time metrology in the VUV based on a non-linear autocorrelation scheme. In an all-reflective design, the technique is applicable to a wide spectral range, from the infrared to the extreme ultraviolet.
Single-shot autocorrelation is demonstrated for the first time, to our knowledge, in the VUV spectral range. Non-resonant two-photon ionization of Krypton is used to obtain a second-order autocorrelation measurement of an intense, Ti:Sa fifth-harmonic pulse at 161.8 nm.
In addition to ultrashort pulse characterization, the experimental scheme is being utilized in a single-shot, VUV pump-VUV probe configuration, for the investigation of ultrafast dynamics. We present results, demonstrating the feasibility of non-linear, time-resolved molecular spectroscopy in the vacuum ultraviolet.