W. Schmitt

TL;DR: Vector momentum distributions of Ne(n+) (n = 1,2,3) ions created by 30 fs, approximately 1 PW/cm(2) laser pulses at 795 nm have been measured using recoil-ion momentum spectroscopy, ruling out mechanisms based on an instantaneous release of two (or more) electrons as a dominant contribution to nonsequential strong-field multiple ionization.

TL;DR: In this paper, a high-resolution recoil-ion momentum spectrometer based on a precooled localized supersonic jet target (COLTRIMS) has been combined with a novel low-energy electron analyzer with 4π solid angle for electrons with energies E e ≤ 30 eV including E e = 0 eV.

TL;DR: In this article, single and double ionization of helium by 1GeV/nucleon U{sup 92+} impact was explored in a kinematically complete experiment, where cross sections, emission characteristics of ions and electrons as well as momentum balances were quantitatively discussed in terms of photoionization of the atom in this broadband, ultrashort virtual photon field.

TL;DR: In this article, a cold target recoil ion momentum spectroscopy (CRISM) was proposed to detect the three-dimensional momentum vector of the recoiling product ion from ion, electron or photon atom collisions with 4π solid angle and high resolution.

TL;DR: In this paper, a specific Dalitz representation was developed allowing one to plot in a single spectrum the energy of all three ionized electrons and, simultaneously, obtain information on their emission angles with respect to the projectile direction.