Berlin 2014 – wissenschaftliches Programm
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K: Fachverband Kurzzeitphysik
K 6: Laser-Materie-Wechselwirkung und Laseranwendungen III
K 6.1: Vortrag
Dienstag, 18. März 2014, 16:30–16:45, SPA SR203
Direct observation of self-compression and pulse-splitting dynamics along a filament — •Martin Kretschmar1,2, Carsten Brée3, Ayhan Demircan1, Tamas Nagy1,4, Heiko G. Kurz1,2, Uwe Morgner1,2, and Milutin Kovacev1,2 — 1Leibniz Universität Hannover, Institut für Quantenoptik, Welfengarten 1, D-30167 Hannover, Germany — 2QUEST, Centre for Quantum Engineering and Space-Time Research, Welfengarten 1, D-30167 Hannover, Germany — 3Weierstraß-Institut für Angewandte Analysis und Stochastik, Mohrenstr. 39, 10117 Berlin, Germany — 4Laser-Laboratorium Göttingen e.V., Hans-Adolf-Krebs-Weg 1,37077 Göttingen, Germany
Filamentation has become a versatile tool for pulse shortening, making it applicable for attosecond science. The evolution of the pulses undergoing filamentation are strongly influenced by complex spatio-temporal dynamics, leading to few-cycle pulse generation directly inside the filament. We present a setup, which directly investigates the fundamental pulse dynamics along the filamentary propagation direction. The analysis of the unperturbed pulse structures reveals pulse-splitting dynamics and self-compression to 5.30 fs. Simulations according to the experimental conditions are performed and show a good agreement with the experimental findings.