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MO: Fachverband Molekülphysik
MO 16: Posters 3: Experimental Techniques and Theoretical Approaches
MO 16.6: Poster
Thursday, March 9, 2017, 17:00–19:00, P OG1
Development of a table-top soft X-ray source for probing ultrafast molecular dynamics — •S. Raabe1, G. Goldsztejn1, E.T. Karamatskos2, S. Tripple2, K. Kovács3, E. Balogh3, B. Major3, V. Tosa3, J. Küpper2, K. Varjú3, M.J.J. Vrakking1, and A. Rouzée1 — 1Max-Born-Institute, Max-Born-Str. 2A, 12489 Berlin, Germany — 2Center for Free-Electron Laser Science, DESY, Notkestr. 85, 22607 Hamburg, Germany — 3Dpartment of Optics and Quantum Electronics, University of Szeged, Szeged, Hungary
High harmonic generation (HHG) is a powerful technique to generate ultrashort bursts of short-wavelength radiation. These pulses provide a way to capture ultrafast electronic and nuclear motion in matters with an exquisite temporal resolution down to the attosecond timescale. However, due to the low conversion efficiency of the HHG process at high photon energies, experiments have so far been limited to a photon energy range below 100 eV. We are currently developing a bright soft X-ray source making use of two-color HHG [1], where the first laser has a wavelength centered around 800 nm and the other laser is in the mid-infrared part of the spectrum. We will present the design of our table-top soft X-ray source that includes a new high gas pressure cell that will be used to generate water window harmonics using this two-color laser scheme. The source will be used together with a velocity map imaging spectrometer to perform time-resolved photoion and photoelectron spectroscopy and a soft X-ray spectrometer enabling transient absorption spectroscopy.
[1] B. Schütte, Optics Express, 23, 26 (2015)