Regensburg 2013 – wissenschaftliches Programm
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DS: Fachverband Dünne Schichten
DS 35: Application of Thin Films
DS 35.1: Vortrag
Freitag, 15. März 2013, 09:30–09:45, H8
Aperiodic multilayer mirrors for attosecond water window pulses — •Alexander Guggenmos1,2, Roman Rauhut1,2, Michael Hofstetter1,2, Samira Hertrich3, Bert Nickel3, Eric M. Gullikson4, Ferenc Krausz1,2, and Ulf Kleineberg1,2 — 1Ludwig-Maximilians-Universität München, Fakultät für Physik, Garching, Germany — 2Max-Planck-Institut für Quantenoptik, Garching, Germany — 3Ludwig-Maximilians-Universität München, Fakultät für Physik, München, Germany — 4Center for X-Ray Optics, Lawrence Berkeley National Lab, Berkeley, USA
Attosecond pulses pave the way towards the direct observation of electron dynamics in atoms, molecules or solid surfaces with an unprecedented temporal precision. Chirped broadband multilayer mirrors are key components to shape these pulses generated from high harmonic radiation facilitating an even deeper physical insight into these dynamics by compressing high harmonic pulses to their fourier limit utilizing short pulse pump-probe experiments. Aperiodic broadband multilayer XUV mirrors exhibit the required degree of freedom for tailored shaping of attosecond pulses. Extending the current technology to the water window spectral range around 300-500 eV requires multilayer optics of atomic precision since the spectral phase is extremely sensitive to even smallest thickness errors. We will present the investigations of chirped aperiodic multilayer XUV optics for the water window range with atomic precision to control spectral and temporal features. Furthermore simulations and optimizations of multilayer systems as well as experimental results of XRR and XUV measurements are presented.