Abstract
The ionization dynamics of dilute atomic gases induced by ultra-short high-intensity optical-pulse excitation is treated fully microscopically. The optical excitation is self-consistently coupled to the many-body interactions of the electrons, including their interactions with free electrons, ions, and neutral atoms. The theory is numerically evaluated for the example of a gas of hydrogen atoms for a broad range of pulses covering the tunnel ionization, multi-photon ionization, as well as the one-photon ionization regimes. It is shown that the many-body effects during the excitation distinctly influence the atomic ionization dynamics. The ionization degree after the pulse is dominated by the dephasing caused by the excitation-dependent interplay between the purely optical processes and the many-body interactions.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1442-1449 |
| Number of pages | 8 |
| Journal | Journal of the Optical Society of America B: Optical Physics |
| Volume | 32 |
| Issue number | 7 |
| DOIs | |
| State | Published - 2015 |
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ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Statistical and Nonlinear Physics
Cite this
Influence of optical and interaction-induced dephasing effects on the short-pulse ionization of atomic gases. / Schuh, K.; Hader, Jorg; Moloney, Jerome V; Koch, Stephan W.
In: Journal of the Optical Society of America B: Optical Physics, Vol. 32, No. 7, 2015, p. 1442-1449.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Influence of optical and interaction-induced dephasing effects on the short-pulse ionization of atomic gases
AU - Schuh, K.
AU - Hader, Jorg
AU - Moloney, Jerome V
AU - Koch, Stephan W
PY - 2015
Y1 - 2015
N2 - The ionization dynamics of dilute atomic gases induced by ultra-short high-intensity optical-pulse excitation is treated fully microscopically. The optical excitation is self-consistently coupled to the many-body interactions of the electrons, including their interactions with free electrons, ions, and neutral atoms. The theory is numerically evaluated for the example of a gas of hydrogen atoms for a broad range of pulses covering the tunnel ionization, multi-photon ionization, as well as the one-photon ionization regimes. It is shown that the many-body effects during the excitation distinctly influence the atomic ionization dynamics. The ionization degree after the pulse is dominated by the dephasing caused by the excitation-dependent interplay between the purely optical processes and the many-body interactions.
AB - The ionization dynamics of dilute atomic gases induced by ultra-short high-intensity optical-pulse excitation is treated fully microscopically. The optical excitation is self-consistently coupled to the many-body interactions of the electrons, including their interactions with free electrons, ions, and neutral atoms. The theory is numerically evaluated for the example of a gas of hydrogen atoms for a broad range of pulses covering the tunnel ionization, multi-photon ionization, as well as the one-photon ionization regimes. It is shown that the many-body effects during the excitation distinctly influence the atomic ionization dynamics. The ionization degree after the pulse is dominated by the dephasing caused by the excitation-dependent interplay between the purely optical processes and the many-body interactions.
UR - http://www.scopus.com/inward/record.url?scp=84943279252&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84943279252&partnerID=8YFLogxK
U2 - 10.1364/JOSAB.32.001442
DO - 10.1364/JOSAB.32.001442
M3 - Article
AN - SCOPUS:84943279252
VL - 32
SP - 1442
EP - 1449
JO - Journal of the Optical Society of America B: Optical Physics
JF - Journal of the Optical Society of America B: Optical Physics
SN - 0740-3224
IS - 7
ER -