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A: Fachverband Atomphysik
A 44: Attosecond physics II
A 44.3: Vortrag
Freitag, 16. März 2012, 11:15–11:30, V57.05
Tracking temporal dynamics along a femtosecond filament — •M. Kretschmar1, D.S. Steingrube1, E. Schulz1, M. Kovacev1, U. Morgner1, M.B. Gaarde2, and A. Couairon3 — 1Leibniz Universität Hannover, Institut für Quantenoptik, Welfengarten 1, D-30167 Hannover, Germany; QUEST, Centre for Quantum Engineering and Space-Time Research, Hannover, Germany — 2Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803-4001, USA; PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA — 3Centre de Physique Theorique, Ecole Polytechnique, CNRS, F-91128, Palaiseau, France
Filamentation of femtosecond laser pulses serves as a versatile and fascinating tool
for ultrafast phenomena such as few-cycle-pulse and high-order
harmonic generation, which are essential steps for the production of
attosecond laser pulses. We present a cell design capable of tracking
dynamics inside a filament along its propagation direction, enabling
detailed studies of the complex temporal and spatial evolution of
the fundamental pulse. The localized analysis is done by truncation
of the filament with a pressure gradient at variable positions.
We report on the temporal pulse dynamics inside the filament observed by
measuring the fundamental spectrum [1] and the pulse duration as
well as high-order harmonic radiation originating directly from the
filament [2].
E Schulz et al., Opt. Express 19, 19495-19507 (2011)
D S Steingrube et al., New J. Phys. 13 043022 (2011)