Fragmentation dynamics of noble gas dimers in two-color intense laser fields

POSTER

Abstract

We studied the dissociation dynamics of noble gas dimer ions in two-color infrared intense laser fields by analyzing their fragment-kinetic-energy-release spectra as a function of the pump-probe delay. Our calculations predict a striking ``delay gap'' in the kinetic-energy-spectra for all noble gas dimers that was so far only measured for the Ar$_{2}$ dimer [1]. We identify this phenomenon as a frustrated dissociation mechanism. This mechanism requests different pump- and probe-pulse wavelengths and involves the pump pulse to both, singly ionize the neutral dimers and dipole-couple adiabatic states in the dimer ion. \\[4pt] [1] J. Wu, M. Magrakvelidze, A. Vredenborg, L. Ph. H. Schmidt, T. Jahnke, A. Czasch, R. D\"{o}rner, and U. Thumm, Phys. Rev. Lett. \textbf{110}, 033004 (2013).

*Supported by the US NSF and DOE.

Authors

  • M. Magrakvelidze

    • Physics Department, Kansas State University
    • KSU
  • J. Wu

    • Physics Department, East China Normal University
  • R. Doerner

    • Institut fuer Kernphysik, Universitaet Frankfurt
  • Uwe Thumm

    • Physics Department, Kansas State University
    • Kansas State University