Dresden 2011 – wissenschaftliches Programm

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DS: Fachverband Dünne Schichten

DS 42: Poster I: Progress in Micro- and Nanopatterning: Techniques and Applications (jointly with O); Spins in Organic Materials; Ion Interactions with Nano Scale Materials; Organic Electronics and Photovoltaics; Plasmonics and Nanophotonics (jointly with HL and O); High-k and Low-k Dielectrics (jointly with DF); Organic Thin Films; Nanoengineered Thin Films; Layer Deposition Processes; Layer Properties: Electrical, Optical, and Mechanical Properties; Thin Film Characterisation: Structure Analysis and Composition; Application of Thin Films

DS 42.111: Poster

Mittwoch, 16. März 2011, 15:00–17:30, P1

Attosecond pulse-shaping including control of the attochirp by aperiodic extreme ultraviolet multilayer mirrors — •Michael Hofstetter^1,2, Alexander Guggenmos^1,2, Eleftherios Goulielmakis¹, Martin Schultze^1,2, Elisabeth Magerl¹, Stefan Neppl³, Elisabeth Bothschafter^1,3, Markus Fieß¹, Benjamin Dennhardt³, Justin Gagnon^1,2, Vladislav Yakovlev^1,2, Reinhard Kienberger^1,3, Adrian Cavalieri¹, Ralph Ernstorfer^1,3, Ferenc Krausz^1,2, and Ulf Kleineberg^1,2 — ¹MPQ, Garching, Germany — ²LMU, Garching, Germany — ³TUM, Garching, Germany

Attosecond physics allow to reveal the dynamics of elementary electronic processes with never before enterable precision. Multilayer XUV mirrors are the key components to shape all attosecond pulse parameters as its central energy, spectral bandwidth, pulse length and attochirp with a high degree of freedom. This allows us to investigate and compare resonant and non-resonant electronic transitions in solids, surfaces, molecules and gases, as each experiment requires its perfectly synchronized pulse and test current physical models. We will present our latest results on shaping attosecond pulses in the spectral range between 80 and 140 eV from gas high harmonics, characterized via FROG analyses of electron streaking. We will present explicit examples of dispersion control using chirped XUV multilayers. We will further present ideas on attosecond spectral cleaning that enable experiments with high temporal (few 100 as) and high spectral (few eV) resolution and clearly reduced noise.