Angle-resolved non-resonant two-photon single ionization of argon using
9.3 eV photons produced via high harmonic generation
- URL: http://arxiv.org/abs/2004.01814v3
- Date: Wed, 26 Aug 2020 18:11:28 GMT
- Title: Angle-resolved non-resonant two-photon single ionization of argon using
9.3 eV photons produced via high harmonic generation
- Authors: Kirk A. Larsen, Daniel S. Slaughter, Thorsten Weber
- Abstract summary: We present an experimental study on the photoionization dynamics of non-resonant one-color two-photon single valence ionization of neutral argon atoms.
Using 9.3 eV photons produced via high harmonic generation and a 3-D momentum imaging spectrometer, we detect the photoelectrons and ions produced from non-resonant two-photon ionization in coincidence.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: We present an experimental study on the photoionization dynamics of
non-resonant one-color two-photon single valence ionization of neutral argon
atoms. Using 9.3 eV photons produced via high harmonic generation and a 3-D
momentum imaging spectrometer, we detect the photoelectrons and ions produced
from non-resonant two-photon ionization in coincidence. Photoionization from
the $3p$ orbital produces a photoelectron scattering wave function with $p$ and
$f$ partial wave components, which interfere and result in a photoelectron
angular distribution with peak amplitude perpendicular to the VUV polarization.
The comparison between the present results and two previous sets of theoretical
calculations [Pan, C. & Starace, A. F. (1991). $\textit{Physical Review A}$,
44(1), 324., and Moccia, R., Rahman, N. K., & Rizzo, A. (1983).
$\textit{Journal of Physics B: Atomic and Molecular Physics}$, 16(15), 2737.]
indicates that electron-electron correlation contributes appreciably to the
two-photon ionization dynamics.
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