Details
| Original language | English |
|---|---|
| Article number | 1697 |
| Journal | Nature Communications |
| Volume | 12 |
| Publication status | Published - 16 Mar 2021 |
Abstract
When a very strong light field is applied to a molecule an electron can be ejected by tunneling. In order to quantify the time-resolved dynamics of this ionization process, the concept of the Wigner time delay can be used. The properties of this process can depend on the tunneling direction relative to the molecular axis. Here, we show experimental and theoretical data on the Wigner time delay for tunnel ionization of H2 molecules and demonstrate its dependence on the emission direction of the electron with respect to the molecular axis. We find, that the observed changes in the Wigner time delay can be quantitatively explained by elongated/shortened travel paths of the emitted electrons, which occur due to spatial shifts of the electrons’ birth positions after tunneling. Our work provides therefore an intuitive perspective towards the Wigner time delay in strong-field ionization.
ASJC Scopus subject areas
- Chemistry(all)
- General Chemistry
- Biochemistry, Genetics and Molecular Biology(all)
- General Biochemistry,Genetics and Molecular Biology
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: Nature Communications, Vol. 12, 1697, 16.03.2021.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Angular dependence of the Wigner time delay upon tunnel ionization of H2
AU - Trabert, D.
AU - Brennecke, S.
AU - Fehre, K.
AU - Anders, N.
AU - Geyer, A.
AU - Grundmann, S.
AU - Schöffler, M. S.
AU - Schmidt, L. Ph H.
AU - Jahnke, T.
AU - Dörner, R.
AU - Kunitski, M.
AU - Eckart, S.
N1 - Funding Information: This work was funded by the German Research Foundation (DFG) through priority programme SPP 1840 QUTIF.
PY - 2021/3/16
Y1 - 2021/3/16
N2 - When a very strong light field is applied to a molecule an electron can be ejected by tunneling. In order to quantify the time-resolved dynamics of this ionization process, the concept of the Wigner time delay can be used. The properties of this process can depend on the tunneling direction relative to the molecular axis. Here, we show experimental and theoretical data on the Wigner time delay for tunnel ionization of H2 molecules and demonstrate its dependence on the emission direction of the electron with respect to the molecular axis. We find, that the observed changes in the Wigner time delay can be quantitatively explained by elongated/shortened travel paths of the emitted electrons, which occur due to spatial shifts of the electrons’ birth positions after tunneling. Our work provides therefore an intuitive perspective towards the Wigner time delay in strong-field ionization.
AB - When a very strong light field is applied to a molecule an electron can be ejected by tunneling. In order to quantify the time-resolved dynamics of this ionization process, the concept of the Wigner time delay can be used. The properties of this process can depend on the tunneling direction relative to the molecular axis. Here, we show experimental and theoretical data on the Wigner time delay for tunnel ionization of H2 molecules and demonstrate its dependence on the emission direction of the electron with respect to the molecular axis. We find, that the observed changes in the Wigner time delay can be quantitatively explained by elongated/shortened travel paths of the emitted electrons, which occur due to spatial shifts of the electrons’ birth positions after tunneling. Our work provides therefore an intuitive perspective towards the Wigner time delay in strong-field ionization.
UR - http://www.scopus.com/inward/record.url?scp=85102521595&partnerID=8YFLogxK
U2 - 10.1038/s41467-021-21845-6
DO - 10.1038/s41467-021-21845-6
M3 - Article
C2 - 33727546
AN - SCOPUS:85102521595
VL - 12
JO - Nature Communications
JF - Nature Communications
SN - 2041-1723
M1 - 1697
ER -