Dresden 2011 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 26: Poster III
A 26.31: Poster
Donnerstag, 17. März 2011, 16:00–18:30, P2
Interference in above-threshold ionization electron distributions from molecules — •Jost Henkel1,2, Manfred Lein2, and Volker Engel1 — 1Institut für Physikalische und Theoretische Chemie and Röntgen Research Center for Complex Material Systems, Am Hubland, 97074 Würzburg, Germany — 2Institut für Theoretische Physik and Centre for Quantum Engineering and Space-Time Research (QUEST), Leibniz Universität Hannover, Appelstraße 2, 30167 Hannover, Germany
We present quantum-mechanical studies on above-threshold ionization of H2+ and molecules with three atoms (H32+) in two dimensions, varying their orientation relative to the laser polarization. Signatures of interfering emissions from the molecular centers are found in the angular resolved photoelectron momentum distribution. These structures are reproduced by an eikonal model and they deviate from a simple double-slit model, which ignores the electron-ion interaction. No clear signatures of interference are found in the electron energy spectrum.