Hannover 2013 – scientific programme
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MO: Fachverband Molekülphysik
MO 14: Poster 1: Cluster, Femtosecond Spectroscopy
MO 14.29: Poster
Tuesday, March 19, 2013, 16:00–18:30, Empore Lichthof
Investigation of the helium dimer and trimer in strong laser-fields — Jörg Voigtsberger1, Jasper Becht1, Nadine Neumann1, Felix Sturm1,2, Maksim Kunitski1, Anton Kalinin1, Jian Wu3, Stefan Zeller1, Markus Schöffler1, Wieland Schöllkopf4, Dario Bressanini5, Achim Czasch1, Lothar Schmidt1, •Maximilian Schütt1, Robert Grisenti1, Till Jahnke1, and Reinhard Dörner1 — 1Goethe Universität Frankfurt a. M., Institut für Kernphysik, Frankfurt, Germany — 2Lawrence Berkeley National Laboritory, Chemical Sciences Devision, Berkeley, USA — 3East China Normal University, State Key Lab of Precision Spectoscropy, Shanghai, China — 4Fritz-Haber-Institut der Max-Planck-Gesellschaft, Department of Molecular Physics Atom and molecule optics, Berlin, Germany — 5University of Insubria, Department of Chemical and Environmental Sciences, Como, Italy
In a free gas expansion small helium clusters were produced at low temperatures. Passing a transmission diffraction grating they are separated into pure dimer respectively trimer jets. After ionization with a Ti:Sa Laser, the Coulomb exploding fragments were measured with the COLTRIMS technique, giving direct access to the vibrational wavefunction and structure of the small clusters.