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K: Fachverband Kurzzeitphysik

K 1: Licht- und Strahlungsquellen, EUV

K 1.4: Vortrag

Montag, 2. März 2015, 15:00–15:20, HZO 40

High-Harmonic Generation in Atomic Medium with a Sub-5-fs Multi-TW Optical Parametric Synthesizer System — •Daniel Rivas^1,2, Matthew Weidman¹, Boris Bergues¹, Alexander Muschet^1,2, Luisa Hofmann^1,2, Olga Razskazovskaya², Hartmut Schröder¹, Wolfram Helml¹, Gilad Marcus¹, Vladimir Pervak², Paris Tzallas³, Dimitri Charalambidis³, Ferenc Krausz^1,2, and Laszlo Veisz¹ — ¹Max-Planck-Institut für Quantenoptik, Garching, Germany — ²Ludwig-Maximilians-Universität München, Garching, Germany — ³Foundation for Research and Technology-Hellas, Heraklion, Greece

We report on the generation of high order harmonics in gas medium using a sub-5 fs multi-terawatt laser system based on optical parametric chirped pulse amplification. These high harmonics exhibit a quasi-continuous spectrum at photon energies tunable between 70-130 eV, allowing the isolation of pulses with durations in the order of a hundred attoseconds. An automated multi-dimensional phase-matching parameter scan leads routinely to pulse energies in the order of tens of nanojoules, making this an ideal source for attosecond XUV-pump XUV-probe experiments at these photons energies.