Dresden 2011 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 22: Electron scattering and recombination I
A 22.3: Vortrag
Donnerstag, 17. März 2011, 14:45–15:00, BAR 106
Single pass high harmonic generation at 20.8MHz repetition rate — •A. Vernaleken1, J. Weitenberg2, T. Sartorius2, P. Russbueldt2, W. Schneider1, S.L. Stebbings1, M.F. Kling1, F. Krausz1, H. D.offmann (2, R. Poprawe2, T.W. Hänsch1, and Th. Udem1 — 1Max-Planck-Institute of Quantum Optics, Hans-Kopfermann-Str. 1, 85748 Garching — 2Fraunhofer Institute for Laser Technology ILT, Steinbachstr. 15, 52074 Aachen
We present first results of our experiments on single pass high harmonic generation (HHG) at 20.8MHz repetition rate using an Yb:YAG Innoslab amplifier system. After spectral broadening and subsequent pulse compression our system delivers 40fs pulses with an average power of up to 23W near 1030nm. Tight focusing into a xenon gas jet allows the generation of high harmonic radiation of up to 17th order. The demonstrated system shows a promising alternative to existing tabletop high repetition rate extreme ultraviolet (XUV) sources. Current limitations, possible extensions and potential applications will be discussed.