Hannover 2013 – wissenschaftliches Programm

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MO: Fachverband Molekülphysik

MO 14: Poster 1: Cluster, Femtosecond Spectroscopy

MO 14.29: Poster

Dienstag, 19. März 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 Sturm^1,2, 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.