Hannover 2020 – wissenschaftliches Programm
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K: Fachverband Kurzzeit- und angewandte Laserphysik
K 1: New Methods - Detonic - Light sources (EUV and others)
K 1.3: Vortrag
Montag, 9. März 2020, 15:00–15:15, f428
Synchronous VUV light source for FLASH II — •Elisa Appi1,2, Christina Papadopoulou3, Hannes Lindenblatt4, Florian Trost4, Tino Lang3, Christoph Heyl3, Bastian Manschwetus3, Ingmar Hartl3, Robert Moshammer4, Uwe Morgner1,2, and Milutin Kovacev1,2 — 1Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover — 2Cluster of Excellence PhoenixD (Photonics, Optics, and Engineering -Innovation AcrossDisciplines), Hannover, Germany — 3DESY, Notkestrasse 85, 22607 Hamburg — 4Max Planck Institute of Nuclear Physics, 69117 Heidelberg
We present a new setup for two-color VUV-XUV pump-probe experiments integrated in the FL26 [1] beamline of FLASH II (DESY). A high order harmonic source, driven by OPCPA laser pulses (700-900nm, <20fs), provides photon energies between 10 and 40 eV, which are optically synchronized with the FEL burst mode. The VUV radiation is coupled in the FEL beamline with a hyperbolic mirror and focused in the reaction microscope [2] (REMI) end-station. Spatial and temporal overlap between the VUV and the FEL beam can be achieved thanks to a split-and-delay unit, already present in the beamline. First tests on the harmonic generation and the coupling in REMI were successfully accomplished.
[1] G. Schmid et al., Synchrotron Radiat. 26, 854-867 (2019)
[2] R. Moshammer et al., Nucl. Instruments Methods Phys. Res. Sect. B: Beam Interactions with Mater. Atoms 108, 425-445 (1996)