Physical Sciences and Mathematics Commons^™

Coincident Fragment Detection In Strong Field Photoionization And Dissociation Of H₂, Horst Rottke, Christoph Trump, M. Wittmann, Georg Korn, Wolfgang Sandner, Robert Moshammer, Alexander Dorn, Claus Dieter Schroter, Daniel Fischer, Jose R. Crespo Lopez-Urrutia, Paul B. Neumayer, J. Deipenwisch, C. Hohr, Bernold Feuerstein, Joachim Hermann Ullrich

Physics Faculty Research & Creative Works

An investigation of the correlated electronic and nuclear motion in fragmentation of H₂ in 4 x 10¹⁴ W/cm², fs laser pulses at 795 nm was presented using the electron-ion momentum spectroscopy. The channel selective electron energy distribution indicated assumption of a new H₂ ionization mechanism to interpret the differences found in the fragmentation channels. The results showed that the momentum distribution of H⁺ ions in the dissociation channels H(1s) + H⁺ + e^- and 2H⁺ + 2e^- was independent of the kinetic energy of photoelectrons.