Erlangen 2018 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
K: Fachverband Kurzzeit- und angewandte Laserphysik
K 3: Laser Systems and Applications
K 3.5: Vortrag
Dienstag, 6. März 2018, 15:15–15:30, MB HS
Sub-Cycle Optical Parametric Synthesizer — •Roland E. Mainz1,2, Giulio Maria Rossi1,2, Fabian Scheiba1,2, Shih-Hsuan Chia1,2, Yudong Yang1,2, Oliver D. Mücke1,2, Giovanni Cirmi1,2, and Franz X. Kärtner1,2 — 1Center for Free-Electron Laser Science, Notkestrasse 85, 22607 Hamburg, Germany — 2Physics Department and The Hamburg Centre for Ultrafast Imaging, University of Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany
Coherent light-field synthesis is a promising route to scale the bandwidth of optical parametric amplifiers beyond one octave. Our vision is to generate custom-tailored sub-cycle optical waveforms opening up unprecedented prospects for precision control of strong-field interactions, for the generation of intense isolated attosecond pulses and for attosecond pump-probe spectroscopy. We present our system based on three OPA spectral channels each featuring a three stage amplification chain. The system delivers a combined bandwidth of more than two octaves (500 nm - 2.2 µ m) allowing for sub-cycle electric field transients with pulse durations below 1.9 fs and millijoule-level pulse energies. The sub-cycle pulse duration allows for immediate isolated attosecond pulse generation without gating techniques, and the synthesized non-sinusoidal waveforms are expected to significantly enhance the HHG efficiency for bright isolated attosecond pulses. The challenges of this approach are the CEP-stable ultra-broadband seeds generation, the timing/phase synchronization, the more than two-octave-wide dispersion management and the long term stability of a setup based on more than 28 non-linear conversion stages (WLGs and OPAs).