Bremen 2017 – wissenschaftliches Programm
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K: Fachverband Kurzzeitphysik
K 1: Meßtechnik - Optische Verfahren und veränderliche Plasmen
K 1.3: Vortrag
Montag, 13. März 2017, 14:55–15:15, GW2 B2890
*XUV-PUMA* Development of a cross-correlator for Flash free-electron Laser — •Martin Büscher1, Sven Toleikis3, Mark Prandolini4, Beata Ziaja-Motyka5,6, Niklas Borchers1,2, and Ulrich Teubner1,2 — 1Institut für Laser und Optik, Hochschule Emden/Leer, D-26723 Emden — 2Institut für Physik, Universität Oldenburg, D-26129 Oldenburg — 3Deutsches Elektronen-Synchrotron DESY, D-22607 Hamburg — 4Helmholtz-Institut Jena, Fröbelstieg 3, D-07743 Jena, Germany — 5CFEL, DESY, Notkestrasse 85, 22607 Hamburg — 6INP, PAS, Radzikowskiego 152, 31-342 Krakow, Poland
Fourth-generation free-electron lasers like FLASH operating in XUV (extreme ultraviolet) and soft X-ray spectral region between 4,2 - 45 nm, are machines allowing access to novel research-areas. Time-resolved experiments on femtosecond time scale in this wavelength region enable an insight into ultrafast processes on nanoscale. To monitor the FEL pulse duration and arrival jitter on a single-shot basis, a versatile diagnostic tool is needed. Such a tool, namely the *XUV-PUMA* (XUV Pulsdauermeßapparatur) is under development. It will provide single-shot basis information with the intention to be operated simultaneously to the user experiments at FLASH. The working principle is based on a plasma gate, where an optical laser pulse is used to probe the transmission change in a transparent material which is pumped by the FEL pulse. The required ultrashort probe laser pulses will be delivered by a sub-30fs, tunable NOPA laser system which is currently under development. This work is sponsored by BMBF - 05K16ME1