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Multiphoton Double Ionization of Helium at 394nm - a Fully Differential Experiment
K. Henrichs, S. Eckart, A. Hartung +11
We report on a kinematically complete experiment on strong field double ionization of helium using laser pulses with a wavelength of 394\,nm and intensities of $3.5-5.7\times10^{14…
Timing Recollision in Nonsequential Double Ionization by Intense Elliptically Polarized Laser Pulses
H. Kang, K. Henrichs, M. Kunitski +10
We examine correlated electron and doubly charged ion momentum spectra from strong field double ionization of Neon employing intense elliptically polarized laser pulses. An ellipti…
Absolute ion detection efficiencies of microchannel plates and funnel microchannel plates for multi-coincidence detection
K. Fehre, D. Trojanowskaja, J. Gatzke +11
Modern momentum imaging techniques allow for the investigation of complex molecules in the gas phase by detection of several fragment ions in coincidence. For these studies, it is…
Double-slit photoelectron interference in strong-field ionization of the neon dimer
Maksim Kunitski, Nicolas Eicke, Pia Huber +13
Wave-particle duality is an inherent peculiarity of the quantum world. The double-slit experiment has been frequently used for understanding different aspects of this fundamental c…
Ultrafast Preparation and Detection of Ring Currents in Single Atoms
Sebastian Eckart, Maksim Kunitski, Martin Richter +16
Quantum particles can penetrate potential barriers by tunneling (1). If that barrier is rotating, the tunneling process is modified (2,3). This is typical for electrons in atoms, m…
Determination of the He-He, Ne-Ne, Ar-Ar, and H interaction potential by wave function imaging
S. Zeller, M. Kunitski, J. Voigtsberger +10
We report on a direct method to measure the internuclear potential energy curve of diatomic systems. A COLTRIMS reaction microscope was used to measure the squares of the vibration…