Stuttgart 2012 – wissenschaftliches Programm
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MO: Fachverband Molekülphysik
MO 6: Femtosecond Spectroscopy I
MO 6.10: Vortrag
Montag, 12. März 2012, 18:45–19:00, V38.03
Attosecond dynamics of CO2 and C2H4 — •Christian Neidel, Jesse Klei, Chung-Hsin Yang, and Marc Vrakking — Max-Born-Institut
We report the first attosecond time-resolved measurements for the molecules CO2 and C2H4. Angular resolved photoelectron and photoion yields were characterized with a velocity map imaging spectrometer (VMIS). Different fragments like O+ and H+ were produced by dissociative ionization. The signal yields show clear oscillations with respect to the time delay between an attosecond pulse train (APT) and a femtosecond IR pulse. The ionization process is modulated by coupling of molecular states by the IR field. The results demonstrate the feasibility of attosecond experiments for larger molecules.