MBI Staff Member – Personal info


Member of Project 2.2 "Strong-field Few-body Systems"


Our group's research focus is set on the investigation of atomic ionization dynamics in strong laser fields, where the laser intensities cover a range from 1014 W/cm2 to 1019 W/cm2. Earlier research highlights embrace results on simultaneous double tunneling, suppression of non-sequential ionization in relativistic laser fields, and core relaxation effects in relativistic laser fields. More recently, the focus of our investigations has shifted towards strong-field processes that lead to a) excited neutral atoms, b) neutral excited fragments after strong-field dissociation of molecules, and c) high survival rates of Rydberg atoms. Moreover, the survival of atoms in neutral excited states is accompanied by kinematic effects on neutral atoms in the focused laser beam, which we investigate using a direct imaging technique of excited atoms.

The figure shows the color-coded distribution of deflected (accelerated) neutral He atoms in a focused short-pulse laser beam with an intensity of 8x1015W/cm2.

MBI Publications

  1. Limit on excitation and stabilization of atoms in intense optical laser fields

    H. Zimmermann, S. Meise, A. Khujakulov, A. Magaña, A. Saenz, U. Eichmann

    Physical Review Letters 120 (2018) 123202/1-6
  2. Unified time and frequency picture of ultrafast atomic excitation in strong laser fields

    H. Zimmermann, S. Patchkovskii, M. Ivanov, U. Eichmann

    Physical Review Letters 118 (2017) 013003/1-5
  3. Strong-Field Induced Atomic Excitation and Kinematics

    U. Eichmann

    Ultrafast Dynamics Driven by Intense Light Pulses 86 Springer Series on Atomic, Optical, and Plasma Physics (2016) 3-25
  4. Atomic excitation and acceleration in strong laser fields

    H. Zimmermann, U. Eichmann

    Physica Scripta 91 (2016) 104002/1-11
  5. Strong-Field Excitation of Helium: Bound State Distribution and Spin Effects

    H. Zimmermann, J. Buller, S. Eilzer, U. Eichmann

    Physical Review Letters 114 (2015) 123003/1-5
  6. Excited state distribution and spin-effects in strong-field excitation of neutral Helium

    H. Zimmermann, S. Eilzer, U. Eichmann

    Journal of Physics Conference Series 635 (2015) 092134/1-2
  7. Strong-field Kapitza-Dirac scattering of neutral atoms

    S. Eilzer, H. Zimmermann, U. Eichmann

    Physical Review Letters 112 (2014) 113001/1-5
  8. Steering neutral atoms in strong laser fields

    S. Eilzer, U. Eichmann

    Journal of Physics B-Atomic, Molecular and Optical Physics 47 (2014) 204014/1-8
  9. Observing Rydberg atoms to survive intense laser fields

    U. Eichmann, A. Saenz, S. Eilzer, T. Nubbemeyer, W. Sandner

    Physical Review Letters 110 (2013) 203002/1-5
  10. Excitation of He atoms in the strong-field tunneling regime

    T. Nubbemeyer, U. Eichmann

    European Journal of Physics 22 (2013) 2267-2272