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A: Fachverband Atomphysik
A 34: Poster II
A 34.45: Poster
Donnerstag, 5. März 2009, 16:30–19:00, VMP 9 Poster
Towards Single Electron Holography with Carrier Envelope Phase Stabilized Few-Cycle Laser Pulses — •Ram Gopal1, Konstantinos Simeonidis1, Artem Rudenko1, Kai-Uwe Kühnel1, Thorsten Ergler1, Manuel Kremer1, Bettina Fischer1, Moritz Kurka1, Claus-Dieter Schröter1, Oliver Herrwerth2, Matthias Kling2, Sergey Zherebtsov2, Adrian Wirth2, Martin Schultze2, Eleftherios Goulielmakis2, Matthias Uiberacker2, Thorsten Uphues2, Matthias Lezius2, Robert Moshammer1, Ferenc Krausz2, and Joachim Ullrich1 — 1Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany — 2Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Str. 1, 85748 Garching, Germany
Single ionization of He with carrier-envelope-phase (CEP) stabilized few-cycle (≈ 5 fs), intense (4*1014 W/cm2) laser pulses (740 nm) was studied using a Reaction Microscope. The recorded 3-D electron (and ion) momentum spectra exhibit a preferential emission of low-energy electrons (Ee<15 eV) to either hemisphere as a function of the CEP. Clear parallel interference stripes emerge in momentum-space at CEPs with maximum asymmetry, which are interpreted as attosecond holographic "self"-images of re-scattered electron wave-packets. The results are in qualitative agreement with a simple model and TDSE calculations.