Stuttgart 2012 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 22: Poster: Interaction with strong or short laser pulses

A 22.5: Poster

Dienstag, 13. März 2012, 16:30–19:00, Poster.V

Electron emission from H₂⁺ in circularly polarized strong fields including nuclear motion or full electronic coordinate space — •Myroslav Zapukhlyak¹, Jost Henkel^1,2, and Manfred Lein¹ — ¹Institut für Theoretische Physik and Centre for Quantum Engineering and Space-Time Research (QUEST), Leibniz Universität Hannover, Appelstraße 2, 30167 Hannover, Germany — ²Institut für Physikalische und Theoretische Chemie and Röntgen Research Center for Complex Material Systems, Am Hubland, 97074 Würzburg, Germany

Inspired by recent work on strong field ionization of H₂⁺ [Odenweller et al., PRL 107, 143004 (2011)] we show new quantum mechanical calculations on this molecular system in circularly polarized laser pulses. We extend previous calculations by including nuclear motion on the one hand and full three-dimensional electronic motion on the other hand. By doing so, we explore the coupled nuclear-electronic dynamics to find the most contributing nuclear distance. Regarding the anisotropy of electron emission from the fixed-in-space molecular ion, we gain additional information from the lateral width of the electronic momentum distribution, which gives depletion-insensitive information about system and laser pulse.