Dortmund 2021 – wissenschaftliches Programm
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AKBP: Arbeitskreis Beschleunigerphysik
AKBP 11: Diagnostics, Control and Instrumentation III
AKBP 11.2: Vortrag
Donnerstag, 18. März 2021, 16:45–17:00, AKBPa
Efficient THz generation by tilted-pulse-front pumping in lithium niobate for the split-ring-resonator experiment at FLUTE — •Matthias Nabinger1, Michael J. Nasse1, Thiemo Schmelzer1, Nigel Smale1, Jens Schäfer1, Bastian Härer1, Gudrun Niehues1, Stefan Funkner1, Erik Bründermann1, Robert Ruprecht1, Anke-Susanne Müller1, Rasmus Ischebeck2, Micha Dehler2, Matthias Moser2, Volker Schlott2, Zoltan Ollmann3, Mozhgan Hayati3, and Thomas Feurer3 for the FLUTE collaboration — 1Karlsruhe Institute of Technology, Karlsruhe, Germany — 2Paul Scherrer Institute, Villigen, Switzerland — 3University of Berne, Berne, Switzerland
We develop a compact, longitudinal diagnostics for fs-scale electron bunches using a THz electric-field transient in a split-ring resonator (SRR) for streaking at the Ferninfrarot Linac- Und Test- Experiment (FLUTE). For this new streaking technique, intensive THz pulses are required, which will be generated by laser-based optical rectification. We present a setup for generating THz pulses using tilted-pulse-front pumping in lithium niobate at room temperature. Excited by an 800-nm Ti:Sa pump laser with 35-fs bandwidth-limited pulse length, conversion efficiencies up to 0.03% were achieved. Furthermore, the current status of the SRR experiment is shown.