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Verhandlungen
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DPG

Hannover 2020 – scientific programme

The DPG Spring Meeting in Hannover had to be cancelled! Read more ...

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K: Fachverband Kurzzeit- und angewandte Laserphysik

K 1: New Methods - Detonic - Light sources (EUV and others)

K 1.3: Talk

Monday, March 9, 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 Kovacev1,21Institut 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)

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