1
|
Kunitski M, Eicke N, Huber P, Köhler J, Zeller S, Voigtsberger J, Schlott N, Henrichs K, Sann H, Trinter F, Schmidt LPH, Kalinin A, Schöffler MS, Jahnke T, Lein M, Dörner R. Double-slit photoelectron interference in strong-field ionization of the neon dimer. Nat Commun 2019; 10:1. [PMID: 30602773 PMCID: PMC6315036 DOI: 10.1038/s41467-018-07882-8] [Citation(s) in RCA: 4487] [Impact Index Per Article: 897.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Accepted: 12/04/2018] [Indexed: 11/09/2022] Open
Abstract
Wave-particle duality is an inherent peculiarity of the quantum world. The double-slit experiment has been frequently used for understanding different aspects of this fundamental concept. The occurrence of interference rests on the lack of which-way information and on the absence of decoherence mechanisms, which could scramble the wave fronts. Here, we report on the observation of two-center interference in the molecular-frame photoelectron momentum distribution upon ionization of the neon dimer by a strong laser field. Postselection of ions, which are measured in coincidence with electrons, allows choosing the symmetry of the residual ion, leading to observation of both, gerade and ungerade, types of interference.
Collapse
Affiliation(s)
- Maksim Kunitski
- Institut für Kernphysik, Goethe-Universität Frankfurt am Main, Max-von-Laue-Straße 1, 60438, Frankfurt am Main, Germany.
| | - Nicolas Eicke
- Institut für Theoretische Physik, Leibniz Universität Hannover, Appelstraße 2, 30167, Hannover, Germany
| | - Pia Huber
- Institut für Kernphysik, Goethe-Universität Frankfurt am Main, Max-von-Laue-Straße 1, 60438, Frankfurt am Main, Germany
| | - Jonas Köhler
- Institut für Kernphysik, Goethe-Universität Frankfurt am Main, Max-von-Laue-Straße 1, 60438, Frankfurt am Main, Germany
| | - Stefan Zeller
- Institut für Kernphysik, Goethe-Universität Frankfurt am Main, Max-von-Laue-Straße 1, 60438, Frankfurt am Main, Germany
| | - Jörg Voigtsberger
- Institut für Kernphysik, Goethe-Universität Frankfurt am Main, Max-von-Laue-Straße 1, 60438, Frankfurt am Main, Germany
| | - Nikolai Schlott
- Institut für Kernphysik, Goethe-Universität Frankfurt am Main, Max-von-Laue-Straße 1, 60438, Frankfurt am Main, Germany
| | - Kevin Henrichs
- Institut für Kernphysik, Goethe-Universität Frankfurt am Main, Max-von-Laue-Straße 1, 60438, Frankfurt am Main, Germany
| | - Hendrik Sann
- Institut für Kernphysik, Goethe-Universität Frankfurt am Main, Max-von-Laue-Straße 1, 60438, Frankfurt am Main, Germany
| | - Florian Trinter
- Institut für Kernphysik, Goethe-Universität Frankfurt am Main, Max-von-Laue-Straße 1, 60438, Frankfurt am Main, Germany
| | - Lothar Ph H Schmidt
- Institut für Kernphysik, Goethe-Universität Frankfurt am Main, Max-von-Laue-Straße 1, 60438, Frankfurt am Main, Germany
| | - Anton Kalinin
- GSI-Helmholtz Center for Heavy Ion Research, Planckstraße 1, 64291, Darmstadt, Germany
| | - Markus S Schöffler
- Institut für Kernphysik, Goethe-Universität Frankfurt am Main, Max-von-Laue-Straße 1, 60438, Frankfurt am Main, Germany
| | - Till Jahnke
- Institut für Kernphysik, Goethe-Universität Frankfurt am Main, Max-von-Laue-Straße 1, 60438, Frankfurt am Main, Germany
| | - Manfred Lein
- Institut für Theoretische Physik, Leibniz Universität Hannover, Appelstraße 2, 30167, Hannover, Germany
| | - Reinhard Dörner
- Institut für Kernphysik, Goethe-Universität Frankfurt am Main, Max-von-Laue-Straße 1, 60438, Frankfurt am Main, Germany.
| |
Collapse
|
2
|
Ruberti M, Decleva P, Averbukh V. Multi-channel dynamics in high harmonic generation of aligned CO2: ab initio analysis with time-dependent B-spline algebraic diagrammatic construction. Phys Chem Chem Phys 2018. [DOI: 10.1039/c7cp07849h] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Electron-correlation effects on the multi-channel dynamics underlying strong-field HHG response of CO2 molecule were demonstrated by ab initio ADC study.
Collapse
Affiliation(s)
- M. Ruberti
- Department of Physics
- Imperial College London
- London SW7 2AZ
- UK
| | - P. Decleva
- Dipartimento di Scienze Chimiche
- Universita' di Trieste
- I-34127 Trieste
- Italy
| | - V. Averbukh
- Department of Physics
- Imperial College London
- London SW7 2AZ
- UK
| |
Collapse
|
3
|
Liu K, Barth I. Identifying the Tunneling Site in Strong-Field Ionization of H_{2}^{+}. PHYSICAL REVIEW LETTERS 2017; 119:243204. [PMID: 29286733 DOI: 10.1103/physrevlett.119.243204] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Indexed: 06/07/2023]
Abstract
The tunneling site of the electron in a molecule exposed to a strong laser field determines the initial position of the ionizing electron and, as a result, has a large impact on the subsequent ultrafast electron dynamics on the polyatomic Coulomb potential. Here, the tunneling site of the electron of H_{2}^{+} ionized by a strong circularly polarized (CP) laser pulse is studied by numerically solving the time-dependent Schrödinger equation. We show that the electron removed from the down-field site is directly driven away by the CP field and the lateral photoelectron momentum distribution (LPMD) exhibits a Gaussian-like distribution, whereas the corresponding LPMD of the electron removed from the up-field site differs from the Gaussian shape due to the Coulomb focusing and scattering by the down-field core. Our current study presents the direct evidence clarifying a long-standing controversy over the tunneling site in H_{2}^{+} and raises the important role of the tunneling site in strong-field molecular ionization.
Collapse
Affiliation(s)
- Kunlong Liu
- Max-Planck-Institut für Mikrostrukturphysik, Weinberg 2, D-06120 Halle (Saale), Germany
| | - Ingo Barth
- Max-Planck-Institut für Mikrostrukturphysik, Weinberg 2, D-06120 Halle (Saale), Germany
| |
Collapse
|
4
|
Haertelt M, Bian XB, Spanner M, Staudte A, Corkum PB. Probing Molecular Dynamics by Laser-Induced Backscattering Holography. PHYSICAL REVIEW LETTERS 2016; 116:133001. [PMID: 27081975 DOI: 10.1103/physrevlett.116.133001] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Indexed: 06/05/2023]
Abstract
We use differential holography to overcome the forward scattering problem in strong-field photoelectron holography. Our differential holograms of H_{2} and D_{2} molecules exhibit a fishbonelike structure, which arises from the backscattered part of the recolliding photoelectron wave packet. We demonstrate that the backscattering hologram can resolve the different nuclear dynamics between H_{2} and D_{2} with subangstrom spatial and subcycle temporal resolution. In addition, we show that attosecond electron dynamics can be resolved. These results open a new avenue for ultrafast studies of molecular dynamics in small molecules.
Collapse
Affiliation(s)
- Marko Haertelt
- Joint Attosecond Science Laboratory, University of Ottawa and National Research Council, Ottawa, Ontario, Canada K1A 0R6
| | - Xue-Bin Bian
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, WuHan, HuBei 430071, People's Republic of China
| | - Michael Spanner
- Joint Attosecond Science Laboratory, University of Ottawa and National Research Council, Ottawa, Ontario, Canada K1A 0R6
| | - André Staudte
- Joint Attosecond Science Laboratory, University of Ottawa and National Research Council, Ottawa, Ontario, Canada K1A 0R6
| | - Paul B Corkum
- Joint Attosecond Science Laboratory, University of Ottawa and National Research Council, Ottawa, Ontario, Canada K1A 0R6
| |
Collapse
|
5
|
Zhu X, Lan P, Liu K, Li Y, Liu X, Zhang Q, Barth I, Lu P. Helicity sensitive enhancement of strong-field ionization in circularly polarized laser fields. OPTICS EXPRESS 2016; 24:4196-4209. [PMID: 26907068 DOI: 10.1364/oe.24.004196] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We investigate the strong-field ionization from p± orbitals driven by circularly polarized laser fields by solving the two-dimensional time-dependent Schrödinger equation in polar coordinates with the Lagrange mesh technique. Enhancement of ionization is found in the deep multiphoton ionization regime when the helicity of the laser field is opposite to that of the p electron, while this enhancement is suppressed when the helicities are the same. It is found that the enhancement of ionization is attributed to the multiphoton resonant excitation. The helicity sensitivity of the resonant enhancement is related to the different excitation-ionization channels in left and right circularly polarized laser fields.
Collapse
|
6
|
Transverse electron momentum distribution in tunneling and over the barrier ionization by laser pulses with varying ellipticity. Sci Rep 2016; 6:19002. [PMID: 26740072 PMCID: PMC4704024 DOI: 10.1038/srep19002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2015] [Accepted: 11/30/2015] [Indexed: 11/28/2022] Open
Abstract
We study transverse electron momentum distribution in strong field atomic ionization driven by laser pulses with varying ellipticity. We show, both experimentally and theoretically, that the transverse electron momentum distribution in the tunneling and over the barrier ionization regimes evolves in a qualitatively different way when the ellipticity parameter describing polarization state of the driving laser pulse increases.
Collapse
|
7
|
Li Y, Lan P, Xie H, He M, Zhu X, Zhang Q, Lu P. Nonadiabatic tunnel ionization in strong circularly polarized laser fields: counterintuitive angular shifts in the photoelectron momentum distribution. OPTICS EXPRESS 2015; 23:28801-28807. [PMID: 26561149 DOI: 10.1364/oe.23.028801] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We perform time-dependent calculation of strong-field ionization of neon, initially prepared in 2p(-1) and 2p(+1) states, with intense near-circularly polarized laser pulses. By solving the three-dimensional time-dependent Schrödinger equation, we find clear different offset angles of the maximum in the photoelectron momentum distribution in the polarization plane of the laser pulses for the two states. We provide clear interpretation that this different angular offset is linked to the sign of the magnetic quantum number, thus it can be used to map out the orbital angular momentum of the initial state. Our results provide a potential tool for studying orbital symmetry in atomic and molecular systems.
Collapse
|