skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Quantum interference in laser-induced nonsequential double ionization

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;
Publication Date:
Sponsoring Org.:
USDOE Office of Electricity Delivery and Energy Reliability (OE), Power Systems Engineering Research and Development (R&D) (OE-10)
OSTI Identifier:
1395592
Grant/Contract Number:
2016YFA0401100
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Physical Review A
Additional Journal Information:
Journal Volume: 96; Journal Issue: 3; Related Information: CHORUS Timestamp: 2017-09-29 10:25:38; Journal ID: ISSN 2469-9926
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English

Citation Formats

Quan, Wei, Hao, XiaoLei, Wang, YanLan, Chen, YongJu, Yu, ShaoGang, Xu, SongPo, Xiao, ZhiLei, Sun, RenPing, Lai, XuanYang, Hu, ShiLin, Liu, MingQing, Shu, Zheng, Wang, XiaoDong, Li, WeiDong, Becker, Wilhelm, Liu, XiaoJun, and Chen, Jing. Quantum interference in laser-induced nonsequential double ionization. United States: N. p., 2017. Web. doi:10.1103/PhysRevA.96.032511.
Quan, Wei, Hao, XiaoLei, Wang, YanLan, Chen, YongJu, Yu, ShaoGang, Xu, SongPo, Xiao, ZhiLei, Sun, RenPing, Lai, XuanYang, Hu, ShiLin, Liu, MingQing, Shu, Zheng, Wang, XiaoDong, Li, WeiDong, Becker, Wilhelm, Liu, XiaoJun, & Chen, Jing. Quantum interference in laser-induced nonsequential double ionization. United States. doi:10.1103/PhysRevA.96.032511.
Quan, Wei, Hao, XiaoLei, Wang, YanLan, Chen, YongJu, Yu, ShaoGang, Xu, SongPo, Xiao, ZhiLei, Sun, RenPing, Lai, XuanYang, Hu, ShiLin, Liu, MingQing, Shu, Zheng, Wang, XiaoDong, Li, WeiDong, Becker, Wilhelm, Liu, XiaoJun, and Chen, Jing. 2017. "Quantum interference in laser-induced nonsequential double ionization". United States. doi:10.1103/PhysRevA.96.032511.
@article{osti_1395592,
title = {Quantum interference in laser-induced nonsequential double ionization},
author = {Quan, Wei and Hao, XiaoLei and Wang, YanLan and Chen, YongJu and Yu, ShaoGang and Xu, SongPo and Xiao, ZhiLei and Sun, RenPing and Lai, XuanYang and Hu, ShiLin and Liu, MingQing and Shu, Zheng and Wang, XiaoDong and Li, WeiDong and Becker, Wilhelm and Liu, XiaoJun and Chen, Jing},
abstractNote = {},
doi = {10.1103/PhysRevA.96.032511},
journal = {Physical Review A},
number = 3,
volume = 96,
place = {United States},
year = 2017,
month = 9
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on September 29, 2018
Publisher's Accepted Manuscript

Save / Share:
  • We address the influence of the molecular orbital geometry and of the molecular alignment with respect to the laser-field polarization on laser-induced nonsequential double ionization of diatomic molecules for different molecular species, namely N{sub 2} and Li{sub 2}. We focus on the recollision excitation with subsequent tunneling ionization (RESI) mechanism, in which the first electron, upon return, promotes the second electron to an excited state, from where it subsequently tunnels. We assume that both electrons are initially in the highest occupied molecular orbital (HOMO) and that the second electron is excited to the lowest unoccupied molecular orbital (LUMO). We showmore » that the electron-momentum distributions exhibit interference maxima and minima due to the electron emission at spatially separated centers. We provide generalized analytical expressions for such maxima or minima, which take into account s-p mixing and the orbital geometry. The patterns caused by the two-center interference are sharpest for vanishing alignment angle and get washed out as this parameter increases. Apart from that, there exist features due to the geometry of the LUMO, which may be observed for a wide range of alignment angles. Such features manifest themselves as the suppression of probability density in specific momentum regions due to the shape of the LUMO wave function, or as an overall decrease in the RESI yield due to the presence of nodal planes.« less
  • The influence of electron-electron Coulomb repulsion on nonsequential double ionization of rare-gas atoms is investigated. Several variants of the quantum-mechanical transition amplitude are evaluated that differ by the form of the inelastic electron-ion rescattering and whether or not Coulomb repulsion between the two electrons in the final state is included. For high laser intensity, an entirely classical model is formulated that simulates the rescattering scenario.
  • Two-electron sum-momentum distributions from nonsequential double ionization of He in an intense laser field are analyzed. The results of a S-matrix calculation show that the inelastic scattering of the first electron with the residual ion is best considered as a (internal) laser-induced impact ionization. The parallel component of the sum momentum is found to be largest when the prescattering electron energy is close to zero. This is due to the fact that a large momentum transfer between the sum momentum in the final state and the impact momentum in the intermediate state along the polarization axis favors the absorption ofmore » field energy by the two-electron system during the scattering process.« less
  • We address nonsequential double ionization induced by strong, linearly polarized laser fields of only a few cycles, considering a physical mechanism in which the second electron is dislodged by the inelastic collision of the first electron with its parent ion. The problem is treated classically, using an ensemble model, and quantum mechanically, within the strong-field and uniform saddle-point approximations. In the latter case, the results are interpreted in terms of ''quantum orbits,'' which can be related to the trajectories of a classical electron in an electric field. We obtain highly asymmetric electron momentum distributions, which strongly depend on the absolutemore » phase, i.e., on the phase difference between the pulse envelope and its carrier frequency. Around a particular value of this parameter, the distributions shift from the region of positive to that of negative momenta, or vice versa, in a radical fashion. This behavior is investigated in detail for several driving-field parameters, and provides a very efficient method for measuring the absolute phase. Both models yield very similar distributions, which share the same physical explanation. There exist, however, minor discrepancies due to the fact that, beyond the region for which electron-impact ionization is classically allowed, the yields from the quantum-mechanical computation decay exponentially, whereas their classical counterparts vanish.« less
  • Classical cutoffs for the momenta of electrons ejected in laser-induced nonsequential double ionization are derived for the recollision-impact-ionization scenario. Such simple cutoff laws can aid in the interpretation of the observed electron spectra.