Angle-resolved non-resonant two-photon single ionization of argon using 9.3 eV photons produced via high harmonic generation
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 orbital produces a photoelectron scattering wave function with and 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). , 44(1), 324., and Moccia, R., Rahman, N. K., & Rizzo, A. (1983). , 16(15), 2737.] indicates that electron-electron correlation contributes appreciably to the two-photon ionization dynamics.
Keywords
Cite
@article{arxiv.2004.01814,
title = {Angle-resolved non-resonant two-photon single ionization of argon using 9.3 eV photons produced via high harmonic generation},
author = {Kirk A. Larsen and Daniel S. Slaughter and Thorsten Weber},
journal= {arXiv preprint arXiv:2004.01814},
year = {2020}
}
Comments
7 pages, 4 figures, 1 table