1
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Artemyev AN, Tomar R, Trabert D, Kargin D, Kutscher E, Schöffler MS, Schmidt LPH, Pietschnig R, Jahnke T, Kunitski M, Eckart S, Dörner R, Demekhin PV. Photoelectron Circular Dichroism in the Spin-Polarized Spectra of Chiral Molecules. Phys Rev Lett 2024; 132:123202. [PMID: 38579236 DOI: 10.1103/physrevlett.132.123202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 01/26/2024] [Accepted: 02/26/2024] [Indexed: 04/07/2024]
Abstract
We studied strong-field multiphoton ionization of 1-iodo-2-methylbutane enantiomers with 395 nm circularly polarized laser pulses experimentally and theoretically. For randomly oriented molecules, we observe spin polarization up to about 15%, which is independent of the molecular enantiomer. Our experimental findings are explained theoretically as an intricate interplay between three contributions from HOMO, HOMO-1, and HOMO-2, which are formed of 5p-electrons of the iodine atom. For uniaxially oriented molecules, our theory demonstrates even larger spin polarization. Moreover, we predict a sizable enantiosensitive photoelectron circular dichroism of about 10%, which is different for different spin states of photoelectrons.
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Affiliation(s)
- A N Artemyev
- Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany
| | - R Tomar
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - D Trabert
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - D Kargin
- Institut für Chemie und CINSaT, Universität Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany
| | - E Kutscher
- Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany
| | - M S Schöffler
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - L Ph H Schmidt
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - R Pietschnig
- Institut für Chemie und CINSaT, Universität Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany
| | - T Jahnke
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - M Kunitski
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - S Eckart
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - R Dörner
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - Ph V Demekhin
- Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany
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2
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Kircher M, Trinter F, Grundmann S, Kastirke G, Weller M, Vela-Perez I, Khan A, Janke C, Waitz M, Zeller S, Mletzko T, Kirchner D, Honkimäki V, Houamer S, Chuluunbaatar O, Popov YV, Volobuev IP, Schöffler MS, Schmidt LPH, Jahnke T, Dörner R. Ion and Electron Momentum Distributions from Single and Double Ionization of Helium Induced by Compton Scattering. Phys Rev Lett 2022; 128:053001. [PMID: 35179929 DOI: 10.1103/physrevlett.128.053001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 12/14/2021] [Accepted: 01/06/2022] [Indexed: 06/14/2023]
Abstract
We present the momentum distributions of the nucleus and of the electrons from double ionization of the helium atom by Compton scattering of photons with hν=40 keV. We find that the doubly charged ion momentum distribution is very close to the Compton profile of the nucleus in the ground state of the helium atom, and the momentum distribution of the singly charged ion to give a precise image of the electron Compton profile. To reproduce these results, nonrelativistic calculations require the use of highly correlated initial- and final-state wave functions.
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Affiliation(s)
- M Kircher
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, D-60438 Frankfurt, Germany
| | - F Trinter
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, D-60438 Frankfurt, Germany
- Molecular Physics, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany
| | - S Grundmann
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, D-60438 Frankfurt, Germany
| | - G Kastirke
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, D-60438 Frankfurt, Germany
| | - M Weller
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, D-60438 Frankfurt, Germany
| | - I Vela-Perez
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, D-60438 Frankfurt, Germany
| | - A Khan
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, D-60438 Frankfurt, Germany
| | - C Janke
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, D-60438 Frankfurt, Germany
| | - M Waitz
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, D-60438 Frankfurt, Germany
| | - S Zeller
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, D-60438 Frankfurt, Germany
| | - T Mletzko
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, D-60438 Frankfurt, Germany
| | - D Kirchner
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, D-60438 Frankfurt, Germany
| | - V Honkimäki
- ESRF, 6 Rue Jules Horowitz, BP 220, 38043 Grenoble Cedex 9, France
| | - S Houamer
- LPQSD, Department of Physics, Faculty of Science, University Sétif-1, 19000 Setif, Algeria
| | - O Chuluunbaatar
- Joint Institute for Nuclear Research, Dubna, Moscow Region 141980, Russia
- Institute of Mathematics and Digital Technology, Mongolian Academy of Sciences, 13330 Ulaanbaatar, Mongolia
| | - Yu V Popov
- Joint Institute for Nuclear Research, Dubna, Moscow Region 141980, Russia
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow 119991, Russia
| | - I P Volobuev
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow 119991, Russia
| | - M S Schöffler
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, D-60438 Frankfurt, Germany
| | - L Ph H Schmidt
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, D-60438 Frankfurt, Germany
| | - T Jahnke
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, D-60438 Frankfurt, Germany
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - R Dörner
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, D-60438 Frankfurt, Germany
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3
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Kastirke G, Ota F, Rezvan DV, Schöffler MS, Weller M, Rist J, Boll R, Anders N, Baumann TM, Eckart S, Erk B, De Fanis A, Fehre K, Gatton A, Grundmann S, Grychtol P, Hartung A, Hofmann M, Ilchen M, Janke C, Kircher M, Kunitski M, Li X, Mazza T, Melzer N, Montano J, Music V, Nalin G, Ovcharenko Y, Pier A, Rennhack N, Rivas DE, Dörner R, Rolles D, Rudenko A, Schmidt P, Siebert J, Strenger N, Trabert D, Vela-Perez I, Wagner R, Weber T, Williams JB, Ziolkowski P, Schmidt LPH, Czasch A, Tamura Y, Hara N, Yamazaki K, Hatada K, Trinter F, Meyer M, Ueda K, Demekhin PV, Jahnke T. Investigating charge-up and fragmentation dynamics of oxygen molecules after interaction with strong X-ray free-electron laser pulses. Phys Chem Chem Phys 2022; 24:27121-27127. [DOI: 10.1039/d2cp02408j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The X-ray-induced charge-up and fragmentation process of a small molecule is examined in great detail by measuring the molecular-frame photoelectron interference pattern in conjunction with other observables in coincidence.
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Affiliation(s)
- G. Kastirke
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - F. Ota
- Department of Physics, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan
| | - D. V. Rezvan
- Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany
| | - M. S. Schöffler
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - M. Weller
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - J. Rist
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - R. Boll
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - N. Anders
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - T. M. Baumann
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - S. Eckart
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - B. Erk
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
| | - A. De Fanis
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - K. Fehre
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - A. Gatton
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - S. Grundmann
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - P. Grychtol
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - A. Hartung
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - M. Hofmann
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - M. Ilchen
- Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - C. Janke
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - M. Kircher
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - M. Kunitski
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - X. Li
- J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, Kansas 66506, USA
| | - T. Mazza
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - N. Melzer
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - J. Montano
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - V. Music
- Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - G. Nalin
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - Y. Ovcharenko
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - A. Pier
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - N. Rennhack
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - D. E. Rivas
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - R. Dörner
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - D. Rolles
- J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, Kansas 66506, USA
| | - A. Rudenko
- J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, Kansas 66506, USA
| | - Ph. Schmidt
- Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - J. Siebert
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - N. Strenger
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - D. Trabert
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - I. Vela-Perez
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - R. Wagner
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - Th. Weber
- Lawrence Berkeley National Laboratory, Chemical Sciences Division, Berkeley, California 94720, USA
| | - J. B. Williams
- Department of Physics, University of Nevada, Reno, Nevada 89557, USA
| | - P. Ziolkowski
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - L. Ph. H. Schmidt
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - A. Czasch
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - Y. Tamura
- Department of Physics, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan
| | - N. Hara
- Department of Physics, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan
| | - K. Yamazaki
- RIKEN Center for Advanced Photonics, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - K. Hatada
- Department of Physics, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan
| | - F. Trinter
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
- Molecular Physics, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - M. Meyer
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - K. Ueda
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai 980-8577, Japan
- Department of Chemistry, Tohoku University, 6-3 Aramaki Aza-Aoba, Aoba-ku, Sendai, 980-8578, Japan
| | - Ph. V. Demekhin
- Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany
| | - T. Jahnke
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
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4
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Trabert D, Anders N, Brennecke S, Schöffler MS, Jahnke T, Schmidt LPH, Kunitski M, Lein M, Dörner R, Eckart S. Nonadiabatic Strong Field Ionization of Atomic Hydrogen. Phys Rev Lett 2021; 127:273201. [PMID: 35061406 DOI: 10.1103/physrevlett.127.273201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 12/07/2021] [Indexed: 06/14/2023]
Abstract
We present experimental data on the nonadiabatic strong field ionization of atomic hydrogen using elliptically polarized femtosecond laser pulses at a central wavelength of 390 nm. Our measured results are in very good agreement with a numerical solution of the time-dependent Schrödinger equation (TDSE). Experiment and TDSE show four above-threshold ionization peaks in the electron's energy spectrum. The most probable emission angle (also known as "attoclock offset angle" or "streaking angle") is found to increase with energy, a trend that is opposite to standard predictions based on Coulomb interaction with the ion. We show that this increase of deflection angle can be explained by a model that includes nonadiabatic corrections of the initial momentum distribution at the tunnel exit and nonadiabatic corrections of the tunnel exit position itself.
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Affiliation(s)
- D Trabert
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - N Anders
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - S Brennecke
- Institut für Theoretische Physik, Leibniz Universität Hannover, Appelstraße 2, 30167 Hannover, Germany
| | - M S Schöffler
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - T Jahnke
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - L Ph H Schmidt
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - M Kunitski
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - M Lein
- Institut für Theoretische Physik, Leibniz Universität Hannover, Appelstraße 2, 30167 Hannover, Germany
| | - R Dörner
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - S Eckart
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
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5
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Fehre K, Novikovskiy NM, Grundmann S, Kastirke G, Eckart S, Trinter F, Rist J, Hartung A, Trabert D, Janke C, Nalin G, Pitzer M, Zeller S, Wiegandt F, Weller M, Kircher M, Hofmann M, Schmidt LPH, Knie A, Hans A, Ltaief LB, Ehresmann A, Berger R, Fukuzawa H, Ueda K, Schmidt-Böcking H, Williams JB, Jahnke T, Dörner R, Schöffler MS, Demekhin PV. Fourfold Differential Photoelectron Circular Dichroism. Phys Rev Lett 2021; 127:103201. [PMID: 34533326 DOI: 10.1103/physrevlett.127.103201] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 08/08/2021] [Indexed: 06/13/2023]
Abstract
We report on a joint experimental and theoretical study of photoelectron circular dichroism (PECD) in methyloxirane. By detecting O 1s photoelectrons in coincidence with fragment ions, we deduce the molecule's orientation and photoelectron emission direction in the laboratory frame. Thereby, we retrieve a fourfold differential PECD clearly beyond 50%. This strong chiral asymmetry is reproduced by ab initio electronic structure calculations. Providing such a pronounced contrast makes PECD of fixed-in-space chiral molecules an even more sensitive tool for chiral recognition in the gas phase.
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Affiliation(s)
- K Fehre
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Strasse 1, Frankfurt am Main 60438, Germany
| | - N M Novikovskiy
- Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Strasse 40, Kassel 34132, Germany
- Institute of Physics, Southern Federal University, Rostov-on-Don 344090, Russia
| | - S Grundmann
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Strasse 1, Frankfurt am Main 60438, Germany
| | - G Kastirke
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Strasse 1, Frankfurt am Main 60438, Germany
| | - S Eckart
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Strasse 1, Frankfurt am Main 60438, Germany
| | - F Trinter
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Strasse 1, Frankfurt am Main 60438, Germany
- Molecular Physics, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, Berlin 14195, Germany
| | - J Rist
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Strasse 1, Frankfurt am Main 60438, Germany
| | - A Hartung
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Strasse 1, Frankfurt am Main 60438, Germany
| | - D Trabert
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Strasse 1, Frankfurt am Main 60438, Germany
| | - C Janke
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Strasse 1, Frankfurt am Main 60438, Germany
| | - G Nalin
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Strasse 1, Frankfurt am Main 60438, Germany
| | - M Pitzer
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Strasse 1, Frankfurt am Main 60438, Germany
| | - S Zeller
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Strasse 1, Frankfurt am Main 60438, Germany
| | - F Wiegandt
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Strasse 1, Frankfurt am Main 60438, Germany
| | - M Weller
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Strasse 1, Frankfurt am Main 60438, Germany
| | - M Kircher
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Strasse 1, Frankfurt am Main 60438, Germany
| | - M Hofmann
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Strasse 1, Frankfurt am Main 60438, Germany
| | - L Ph H Schmidt
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Strasse 1, Frankfurt am Main 60438, Germany
| | - A Knie
- Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Strasse 40, Kassel 34132, Germany
| | - A Hans
- Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Strasse 40, Kassel 34132, Germany
| | - L Ben Ltaief
- Department of Physics and Astronomy, Aarhus University, Århus 8000, Denmark
| | - A Ehresmann
- Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Strasse 40, Kassel 34132, Germany
| | - R Berger
- Theoretical Chemistry, Universität Marburg, Hans-Meerwein-Strasse 4, Marburg 35032, Germany
| | - H Fukuzawa
- Institute of multidisciplinary research for advanced materials, Tohoku University, Sendai 980-8577, Japan
| | - K Ueda
- Institute of multidisciplinary research for advanced materials, Tohoku University, Sendai 980-8577, Japan
| | - H Schmidt-Böcking
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Strasse 1, Frankfurt am Main 60438, Germany
| | - J B Williams
- Department of Physics, University of Nevada, Reno, Nevada 89557, USA
| | - T Jahnke
- European XFEL, Holzkoppel 4, Schenefeld 22869, Germany
| | - R Dörner
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Strasse 1, Frankfurt am Main 60438, Germany
| | - M S Schöffler
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Strasse 1, Frankfurt am Main 60438, Germany
| | - Ph V Demekhin
- Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Strasse 40, Kassel 34132, Germany
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6
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Fehre K, Eckart S, Kunitski M, Janke C, Trabert D, Hofmann M, Rist J, Weller M, Hartung A, Schmidt LPH, Jahnke T, Braun H, Baumert T, Stohner J, Demekhin PV, Schöffler MS, Dörner R. Strong Differential Photoion Circular Dichroism in Strong-Field Ionization of Chiral Molecules. Phys Rev Lett 2021; 126:083201. [PMID: 33709766 DOI: 10.1103/physrevlett.126.083201] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 01/15/2021] [Indexed: 06/12/2023]
Abstract
We investigate the differential ionization probability of chiral molecules in the strong-field regime as a function of the helicity of the incident light. To this end, we analyze the fourfold ionization of bromochlorofluoromethane (CHBrClF) with subsequent fragmentation into four charged fragments and different dissociation channels of the singly ionized methyloxirane. By resolving for the molecular orientation, we show that the photoion circular dichroism signal strength is increased by 2 orders of magnitude.
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Affiliation(s)
- K Fehre
- Institut für Kernphysik, Goethe-Universität, Frankfurt Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - S Eckart
- Institut für Kernphysik, Goethe-Universität, Frankfurt Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - M Kunitski
- Institut für Kernphysik, Goethe-Universität, Frankfurt Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - C Janke
- Institut für Kernphysik, Goethe-Universität, Frankfurt Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - D Trabert
- Institut für Kernphysik, Goethe-Universität, Frankfurt Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - M Hofmann
- Institut für Kernphysik, Goethe-Universität, Frankfurt Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - J Rist
- Institut für Kernphysik, Goethe-Universität, Frankfurt Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - M Weller
- Institut für Kernphysik, Goethe-Universität, Frankfurt Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - A Hartung
- Institut für Kernphysik, Goethe-Universität, Frankfurt Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - L Ph H Schmidt
- Institut für Kernphysik, Goethe-Universität, Frankfurt Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - T Jahnke
- Institut für Kernphysik, Goethe-Universität, Frankfurt Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - H Braun
- Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany
| | - T Baumert
- Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany
| | - J Stohner
- ZHAW Zurich University for Applied Sciences, Department N, Campus Reidbach, Research Group Physical Chemistry Einsiedlerstrasse 31, 8820 Wädenswil, Switzerland
| | - Ph V Demekhin
- Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany
| | - M S Schöffler
- Institut für Kernphysik, Goethe-Universität, Frankfurt Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - R Dörner
- Institut für Kernphysik, Goethe-Universität, Frankfurt Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
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7
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Hartung A, Brennecke S, Lin K, Trabert D, Fehre K, Rist J, Schöffler MS, Jahnke T, Schmidt LPH, Kunitski M, Lein M, Dörner R, Eckart S. Electric Nondipole Effect in Strong-Field Ionization. Phys Rev Lett 2021; 126:053202. [PMID: 33605768 DOI: 10.1103/physrevlett.126.053202] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Accepted: 01/08/2021] [Indexed: 06/12/2023]
Abstract
Strong-field ionization of atoms by circularly polarized femtosecond laser pulses produces a donut-shaped electron momentum distribution. Within the dipole approximation this distribution is symmetric with respect to the polarization plane. The magnetic component of the light field is known to shift this distribution forward. Here, we show that this magnetic nondipole effect is not the only nondipole effect in strong-field ionization. We find that an electric nondipole effect arises that is due to the position dependence of the electric field and which can be understood in analogy to the Doppler effect. This electric nondipole effect manifests as an increase of the radius of the donut-shaped photoelectron momentum distribution for forward-directed momenta and as a decrease of this radius for backwards-directed electrons. We present experimental data showing this fingerprint of the electric nondipole effect and compare our findings with a classical model and quantum calculations.
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Affiliation(s)
- A Hartung
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - S Brennecke
- Institut für Theoretische Physik, Leibniz Universität Hannover, Appelstraße 2, 30167 Hannover, Germany
| | - K Lin
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
- State Key Laboratory of Precision Spectroscopy, East China Normal University, 200241, Shanghai, China
| | - D Trabert
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - K Fehre
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - J Rist
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - M S Schöffler
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - T Jahnke
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - L Ph H Schmidt
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - M Kunitski
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - M Lein
- Institut für Theoretische Physik, Leibniz Universität Hannover, Appelstraße 2, 30167 Hannover, Germany
| | - R Dörner
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - S Eckart
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
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8
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Kircher M, Rist J, Trinter F, Grundmann S, Waitz M, Melzer N, Vela-Pérez I, Mletzko T, Pier A, Strenger N, Siebert J, Janssen R, Schmidt LPH, Artemyev AN, Schöffler MS, Jahnke T, Dörner R, Demekhin PV. Recoil-Induced Asymmetry of Nondipole Molecular Frame Photoelectron Angular Distributions in the Hard X-ray Regime. Phys Rev Lett 2019; 123:243201. [PMID: 31922823 DOI: 10.1103/physrevlett.123.243201] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Indexed: 06/10/2023]
Abstract
We investigate angular emission distributions of the 1s photoelectrons of N_{2} ionized by linearly polarized synchrotron radiation at hν=40 keV. As expected, nondipole contributions cause a very strong forward-backward asymmetry in the measured emission distributions. In addition, we observe an unexpected asymmetry with respect to the polarization direction, which depends on the direction of the molecular fragmentation. In particular, photoelectrons are predominantly emitted in the direction of the forward nitrogen atom. This observation cannot be explained via asymmetries introduced by the initial bound and final continuum electronic states of the oriented molecule. The present simulations assign this asymmetry to a novel nontrivial effect of the recoil imposed to the nuclei by the fast photoelectrons and high-energy photons, which results in a propensity for the ions to break up along the axis of the recoil momentum. The results are of particular importance for the interpretation of future experiments at x-ray free electron lasers operating in the few tens of keV regime, where such nondipole and recoil effects will be essential.
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Affiliation(s)
- M Kircher
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Str. 1, 60438 Frankfurt am Main, Germany
| | - J Rist
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Str. 1, 60438 Frankfurt am Main, Germany
| | - F Trinter
- FS-PETRA-S, Deutsches Elektronen-Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany
- Molecular Physics, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4, 14195 Berlin, Germany
| | - S Grundmann
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Str. 1, 60438 Frankfurt am Main, Germany
| | - M Waitz
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Str. 1, 60438 Frankfurt am Main, Germany
| | - N Melzer
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Str. 1, 60438 Frankfurt am Main, Germany
| | - I Vela-Pérez
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Str. 1, 60438 Frankfurt am Main, Germany
| | - T Mletzko
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Str. 1, 60438 Frankfurt am Main, Germany
| | - A Pier
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Str. 1, 60438 Frankfurt am Main, Germany
| | - N Strenger
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Str. 1, 60438 Frankfurt am Main, Germany
| | - J Siebert
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Str. 1, 60438 Frankfurt am Main, Germany
| | - R Janssen
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Str. 1, 60438 Frankfurt am Main, Germany
| | - L Ph H Schmidt
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Str. 1, 60438 Frankfurt am Main, Germany
| | - A N Artemyev
- Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Str. 40, 34132 Kassel, Germany
| | - M S Schöffler
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Str. 1, 60438 Frankfurt am Main, Germany
| | - T Jahnke
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Str. 1, 60438 Frankfurt am Main, Germany
| | - R Dörner
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Str. 1, 60438 Frankfurt am Main, Germany
| | - Ph V Demekhin
- Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Str. 40, 34132 Kassel, Germany
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9
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Kircher M, Rist J, Trinter F, Grundmann S, Waitz M, Melzer N, Vela-Perez I, Mletzko T, Pier A, Strenger N, Siebert J, Janssen R, Honkimäki V, Drnec J, Demekhin PV, Schmidt LPH, Schöffler MS, Jahnke T, Dörner R. Photon-Momentum-Induced Molecular Dynamics in Photoionization of N_{2} at hν=40 keV. Phys Rev Lett 2019; 123:193001. [PMID: 31765203 DOI: 10.1103/physrevlett.123.193001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Indexed: 06/10/2023]
Abstract
We investigate K-shell ionization of N_{2} at 40 keV photon energy. Using a cold target recoil ion momentum spectroscopy reaction microscope, we determine the vector momenta of the photoelectron, the Auger electron, and both N^{+} fragments. These fully differential data show that the dissociation process of the N_{2}^{2+} ion is significantly modified not only by the recoil momentum of the photoelectron but also by the photon momentum and the momentum of the emitted Auger electron. We find that the recoil energy introduced by the photon and the photoelectron momentum is partitioned with a ratio of approximately 30∶70 between the Auger electron and fragment ion kinetic energies, respectively. We also observe that the photon momentum induces an additional rotation of the molecular ion.
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Affiliation(s)
- M Kircher
- Institut für Kernphysik, Johann Wolfgang Goethe Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
| | - J Rist
- Institut für Kernphysik, Johann Wolfgang Goethe Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
| | - F Trinter
- FS-PETRA-S, Deutsches Elektronen-Sychrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany
- Molecular Physics, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4, 14195 Berlin, Germany
| | - S Grundmann
- Institut für Kernphysik, Johann Wolfgang Goethe Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
| | - M Waitz
- Institut für Kernphysik, Johann Wolfgang Goethe Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
| | - N Melzer
- Institut für Kernphysik, Johann Wolfgang Goethe Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
| | - I Vela-Perez
- Institut für Kernphysik, Johann Wolfgang Goethe Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
| | - T Mletzko
- Institut für Kernphysik, Johann Wolfgang Goethe Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
| | - A Pier
- Institut für Kernphysik, Johann Wolfgang Goethe Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
| | - N Strenger
- Institut für Kernphysik, Johann Wolfgang Goethe Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
| | - J Siebert
- Institut für Kernphysik, Johann Wolfgang Goethe Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
| | - R Janssen
- Institut für Kernphysik, Johann Wolfgang Goethe Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
| | - V Honkimäki
- ESRF, 6 Rue Jules Horowitz, BP 220, 38043 Grenoble Cedex 9, France
| | - J Drnec
- ESRF, 6 Rue Jules Horowitz, BP 220, 38043 Grenoble Cedex 9, France
| | - Ph V Demekhin
- Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Strasse 40, 34132 Kassel, Germany
| | - L Ph H Schmidt
- Institut für Kernphysik, Johann Wolfgang Goethe Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
| | - M S Schöffler
- Institut für Kernphysik, Johann Wolfgang Goethe Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
| | - T Jahnke
- Institut für Kernphysik, Johann Wolfgang Goethe Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
| | - R Dörner
- Institut für Kernphysik, Johann Wolfgang Goethe Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
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10
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Fehre K, Eckart S, Kunitski M, Pitzer M, Zeller S, Janke C, Trabert D, Rist J, Weller M, Hartung A, Schmidt LPH, Jahnke T, Berger R, Dörner R, Schöffler MS. Enantioselective fragmentation of an achiral molecule in a strong laser field. Sci Adv 2019; 5:eaau7923. [PMID: 30873429 PMCID: PMC6408155 DOI: 10.1126/sciadv.aau7923] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 01/24/2019] [Indexed: 05/13/2023]
Abstract
Chirality is omnipresent in living nature. On the single molecule level, the response of a chiral species to a chiral probe depends on their respective handedness. A prominent example is the difference in the interaction of a chiral molecule with left or right circularly polarized light. In the present study, we show by Coulomb explosion imaging that circularly polarized light can also induce a chiral fragmentation of a planar and thus achiral molecule. The observed enantiomer strongly depends on the orientation of the molecule with respect to the light propagation direction and the helicity of the ionizing light. This finding might trigger new approaches to improve laser-driven enantioselective chemical synthesis.
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Affiliation(s)
- K. Fehre
- Institut für Kernphysik Goethe-Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
- Corresponding author. (K.F.); (M.S.S.)
| | - S. Eckart
- Institut für Kernphysik Goethe-Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - M. Kunitski
- Institut für Kernphysik Goethe-Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - M. Pitzer
- Chemical Physics Department, Weizmann Institute of Science, P.O. Box 26, 76100 Rehovot, Israel
| | - S. Zeller
- Institut für Kernphysik Goethe-Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - C. Janke
- Institut für Kernphysik Goethe-Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - D. Trabert
- Institut für Kernphysik Goethe-Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - J. Rist
- Institut für Kernphysik Goethe-Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - M. Weller
- Institut für Kernphysik Goethe-Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - A. Hartung
- Institut für Kernphysik Goethe-Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - L. Ph. H. Schmidt
- Institut für Kernphysik Goethe-Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - T. Jahnke
- Institut für Kernphysik Goethe-Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - R. Berger
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Straße 4, 35032 Marburg, Germany
| | - R. Dörner
- Institut für Kernphysik Goethe-Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - M. S. Schöffler
- Institut für Kernphysik Goethe-Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
- Corresponding author. (K.F.); (M.S.S.)
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11
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Grundmann S, Trinter F, Bray AW, Eckart S, Rist J, Kastirke G, Metz D, Klumpp S, Viefhaus J, Schmidt LPH, Williams JB, Dörner R, Jahnke T, Schöffler MS, Kheifets AS. Separating Dipole and Quadrupole Contributions to Single-Photon Double Ionization. Phys Rev Lett 2018; 121:173003. [PMID: 30411931 DOI: 10.1103/physrevlett.121.173003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Indexed: 06/08/2023]
Abstract
We report on a kinematically complete measurement of double ionization of helium by a single 1100 eV circularly polarized photon. By exploiting dipole selection rules in the two-electron continuum state, we observed the angular emission pattern of electrons originating from a pure quadrupole transition. Our fully differential experimental data and companion ab initio nonperturbative theory show the separation of dipole and quadrupole contributions to photo-double-ionization and provide new insight into the nature of the quasifree mechanism.
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Affiliation(s)
- S Grundmann
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
| | - F Trinter
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
| | - A W Bray
- Research School of Physics, Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - S Eckart
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
| | - J Rist
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
| | - G Kastirke
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
| | - D Metz
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
| | - S Klumpp
- FS-FLASH-D, Deutsches Elektronen-Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany
| | - J Viefhaus
- Helmholtz-Zentrum Berlin, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
| | - L Ph H Schmidt
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
| | - J B Williams
- Department of Physics, University of Nevada, Reno, Nevada 89557, USA
| | - R Dörner
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
| | - T Jahnke
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
| | - M S Schöffler
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
| | - A S Kheifets
- Research School of Physics, Australian National University, Canberra, Australian Capital Territory 2601, Australia
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12
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Eckart S, Fehre K, Eicke N, Hartung A, Rist J, Trabert D, Strenger N, Pier A, Schmidt LPH, Jahnke T, Schöffler MS, Lein M, Kunitski M, Dörner R. Direct Experimental Access to the Nonadiabatic Initial Momentum Offset upon Tunnel Ionization. Phys Rev Lett 2018; 121:163202. [PMID: 30387676 DOI: 10.1103/physrevlett.121.163202] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 08/16/2018] [Indexed: 06/08/2023]
Abstract
We report on the nonadiabatic offset of the initial electron momentum distribution in the plane of polarization upon single ionization of argon by strong field tunneling and show how to experimentally control the degree of nonadiabaticity. Two-color counter- and corotating fields (390 and 780 nm) are compared to show that the nonadiabatic offset strongly depends on the temporal evolution of the laser electric field. We introduce a simple method for the direct access to the nonadiabatic offset using two-color counter- and corotating fields. Further, for a single-color circularly polarized field at 780 nm, we show that the radius of the experimentally observed donutlike distribution increases for increasing momentum in the light propagation direction. Our observed initial momentum offsets are well reproduced by the strong-field approximation. A mechanistic picture is introduced that links the measured nonadiabatic offset to the magnetic quantum number of virtually populated intermediate states.
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Affiliation(s)
- S Eckart
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - K Fehre
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - N Eicke
- Institut für Theoretische Physik, Leibniz Universität Hannover, Appelstr. 2, 30167 Hannover, Germany
| | - A Hartung
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - J Rist
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - D Trabert
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - N Strenger
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - A Pier
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - L Ph H Schmidt
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - T Jahnke
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - M S Schöffler
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - M Lein
- Institut für Theoretische Physik, Leibniz Universität Hannover, Appelstr. 2, 30167 Hannover, Germany
| | - M Kunitski
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - R Dörner
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
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13
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Zeller S, Kunitski M, Voigtsberger J, Waitz M, Trinter F, Eckart S, Kalinin A, Czasch A, Schmidt LPH, Weber T, Schöffler M, Jahnke T, Dörner R. Determination of Interatomic Potentials of He_{2}, Ne_{2}, Ar_{2}, and H_{2} by Wave Function Imaging. Phys Rev Lett 2018; 121:083002. [PMID: 30192586 DOI: 10.1103/physrevlett.121.083002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Indexed: 06/08/2023]
Abstract
We report on a direct method to measure the interatomic potential energy curve of diatomic systems. A cold target recoil ion momentum spectroscopy reaction microscope was used to measure the squares of the vibrational wave functions of H_{2}, He_{2}, Ne_{2}, and Ar_{2}. The Schrödinger equation relates the curvature of the wave function to the potential V(R) and therefore offers a simple but elegant way to extract the shape of the potential.
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Affiliation(s)
- S Zeller
- Institut für Kernphysik, Goethe-Universität Frankfurt am Main, Max-von-Laue-Strasse 1, 60438 Frankfurt am Main, Germany
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstrasse 1, 64291 Darmstadt, Germany
| | - M Kunitski
- Institut für Kernphysik, Goethe-Universität Frankfurt am Main, Max-von-Laue-Strasse 1, 60438 Frankfurt am Main, Germany
| | - J Voigtsberger
- Institut für Kernphysik, Goethe-Universität Frankfurt am Main, Max-von-Laue-Strasse 1, 60438 Frankfurt am Main, Germany
| | - M Waitz
- Institut für Kernphysik, Goethe-Universität Frankfurt am Main, Max-von-Laue-Strasse 1, 60438 Frankfurt am Main, Germany
| | - F Trinter
- Institut für Kernphysik, Goethe-Universität Frankfurt am Main, Max-von-Laue-Strasse 1, 60438 Frankfurt am Main, Germany
| | - S Eckart
- Institut für Kernphysik, Goethe-Universität Frankfurt am Main, Max-von-Laue-Strasse 1, 60438 Frankfurt am Main, Germany
| | - A Kalinin
- Institut für Kernphysik, Goethe-Universität Frankfurt am Main, Max-von-Laue-Strasse 1, 60438 Frankfurt am Main, Germany
| | - A Czasch
- Institut für Kernphysik, Goethe-Universität Frankfurt am Main, Max-von-Laue-Strasse 1, 60438 Frankfurt am Main, Germany
| | - L Ph H Schmidt
- Institut für Kernphysik, Goethe-Universität Frankfurt am Main, Max-von-Laue-Strasse 1, 60438 Frankfurt am Main, Germany
| | - T Weber
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - M Schöffler
- Institut für Kernphysik, Goethe-Universität Frankfurt am Main, Max-von-Laue-Strasse 1, 60438 Frankfurt am Main, Germany
| | - T Jahnke
- Institut für Kernphysik, Goethe-Universität Frankfurt am Main, Max-von-Laue-Strasse 1, 60438 Frankfurt am Main, Germany
| | - R Dörner
- Institut für Kernphysik, Goethe-Universität Frankfurt am Main, Max-von-Laue-Strasse 1, 60438 Frankfurt am Main, Germany
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14
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Kang H, Henrichs K, Kunitski M, Wang Y, Hao X, Fehre K, Czasch A, Eckart S, Schmidt LPH, Schöffler M, Jahnke T, Liu X, Dörner R. Timing Recollision in Nonsequential Double Ionization by Intense Elliptically Polarized Laser Pulses. Phys Rev Lett 2018; 120:223204. [PMID: 29906162 DOI: 10.1103/physrevlett.120.223204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Indexed: 06/08/2023]
Abstract
We examine correlated electron and doubly charged ion momentum spectra from strong field double ionization of neon employing intense elliptically polarized laser pulses. An ellipticity-dependent asymmetry of correlated electron and ion momentum distributions has been observed. Using a 3D semiclassical model, we demonstrate that our observations reflect the subcycle dynamics of the recollision process. Our Letter reveals a general physical picture for recollision impact double ionization with elliptical polarization and demonstrates the possibility of ultrafast control of the recollision dynamics.
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Affiliation(s)
- H Kang
- Institut für Kernphysik, Goethe Universität Frankfurt, 60438 Frankfurt am Main, Germany
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China
| | - K Henrichs
- Institut für Kernphysik, Goethe Universität Frankfurt, 60438 Frankfurt am Main, Germany
| | - M Kunitski
- Institut für Kernphysik, Goethe Universität Frankfurt, 60438 Frankfurt am Main, Germany
| | - Y Wang
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China
| | - X Hao
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Theoretical Physics and Department of Physics, Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China
| | - K Fehre
- Institut für Kernphysik, Goethe Universität Frankfurt, 60438 Frankfurt am Main, Germany
| | - A Czasch
- Institut für Kernphysik, Goethe Universität Frankfurt, 60438 Frankfurt am Main, Germany
| | - S Eckart
- Institut für Kernphysik, Goethe Universität Frankfurt, 60438 Frankfurt am Main, Germany
| | - L Ph H Schmidt
- Institut für Kernphysik, Goethe Universität Frankfurt, 60438 Frankfurt am Main, Germany
| | - M Schöffler
- Institut für Kernphysik, Goethe Universität Frankfurt, 60438 Frankfurt am Main, Germany
| | - T Jahnke
- Institut für Kernphysik, Goethe Universität Frankfurt, 60438 Frankfurt am Main, Germany
| | - X Liu
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China
| | - R Dörner
- Institut für Kernphysik, Goethe Universität Frankfurt, 60438 Frankfurt am Main, Germany
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15
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Fehre K, Trojanowskaja D, Gatzke J, Kunitski M, Trinter F, Zeller S, Schmidt LPH, Stohner J, Berger R, Czasch A, Jagutzki O, Jahnke T, Dörner R, Schöffler MS. Absolute ion detection efficiencies of microchannel plates and funnel microchannel plates for multi-coincidence detection. Rev Sci Instrum 2018; 89:045112. [PMID: 29716368 DOI: 10.1063/1.5022564] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Modern momentum imaging techniques allow for the investigation of complex molecules in the gas phase by detection of several fragment ions in coincidence. For these studies, it is of great importance that the single-particle detection efficiency ε is as high as possible, as the overall efficiency scales with εn, i.e., the power of the number of detected particles. Here we present measured absolute detection efficiencies for protons of several micro-channel plates (MCPs), including efficiency enhanced "funnel MCPs." Furthermore, the relative detection efficiency for two-, three-, four-, and five-body fragmentation of CHBrClF has been examined. The "funnel" MCPs exhibit an efficiency of approximately 90%, gaining a factor of 24 (as compared to "normal" MCPs) in the case of a five-fold ion coincidence detection.
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Affiliation(s)
- K Fehre
- Institut für Kernphysik, Goethe-Universität Frankfurt, Max-von-Laue-St. 1, Frankfurt DE-60438, Germany
| | - D Trojanowskaja
- Institut für Kernphysik, Goethe-Universität Frankfurt, Max-von-Laue-St. 1, Frankfurt DE-60438, Germany
| | - J Gatzke
- Institut für Kernphysik, Goethe-Universität Frankfurt, Max-von-Laue-St. 1, Frankfurt DE-60438, Germany
| | - M Kunitski
- Institut für Kernphysik, Goethe-Universität Frankfurt, Max-von-Laue-St. 1, Frankfurt DE-60438, Germany
| | - F Trinter
- Institut für Kernphysik, Goethe-Universität Frankfurt, Max-von-Laue-St. 1, Frankfurt DE-60438, Germany
| | - S Zeller
- Institut für Kernphysik, Goethe-Universität Frankfurt, Max-von-Laue-St. 1, Frankfurt DE-60438, Germany
| | - L Ph H Schmidt
- Institut für Kernphysik, Goethe-Universität Frankfurt, Max-von-Laue-St. 1, Frankfurt DE-60438, Germany
| | - J Stohner
- Institute of Chemistry and Biotechnology, Zurich University of Applied Sciences, Campus Riedbach, Einsiedlerstr. 31, CH-8820 Wäderswil, Switzerland
| | - R Berger
- Philipps-Universität Marburg, Hans-Meerwein-Straße 4, DE-35032 Marburg, Germany
| | - A Czasch
- RoentDek Handels GmbH, Im Vogelshaag 8, DE-56779 Kelkheim, Germany
| | - O Jagutzki
- RoentDek Handels GmbH, Im Vogelshaag 8, DE-56779 Kelkheim, Germany
| | - T Jahnke
- Institut für Kernphysik, Goethe-Universität Frankfurt, Max-von-Laue-St. 1, Frankfurt DE-60438, Germany
| | - R Dörner
- Institut für Kernphysik, Goethe-Universität Frankfurt, Max-von-Laue-St. 1, Frankfurt DE-60438, Germany
| | - M S Schöffler
- Institut für Kernphysik, Goethe-Universität Frankfurt, Max-von-Laue-St. 1, Frankfurt DE-60438, Germany
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16
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Trabert D, Hartung A, Eckart S, Trinter F, Kalinin A, Schöffler M, Schmidt LPH, Jahnke T, Kunitski M, Dörner R. Spin and Angular Momentum in Strong-Field Ionization. Phys Rev Lett 2018; 120:043202. [PMID: 29437459 DOI: 10.1103/physrevlett.120.043202] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Indexed: 06/08/2023]
Abstract
The spin polarization of electrons from multiphoton ionization of Xe by 395 nm circularly polarized laser pulses at 6×10^{13} W/cm^{2} has been measured. At this photon energy of 3.14 eV the above-threshold ionization peaks connected to Xe^{+} ions in the ground state (J=3/2, ionization potential I_{p}=12.1 eV) and the first excited state (J=1/2, I_{p}=13.4 eV) are clearly separated in the electron energy distribution. These two combs of above-threshold ionization peaks show opposite spin polarizations. The magnitude of the spin polarization is a factor of 2 higher for the J=1/2 than for the J=3/2 final ionic state. In turn, the data show that the ionization probability is strongly dependent on the sign of the magnetic quantum number.
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Affiliation(s)
- D Trabert
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
| | - A Hartung
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
| | - S Eckart
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
| | - F Trinter
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
| | - A Kalinin
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
| | - M Schöffler
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
| | - L Ph H Schmidt
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
| | - T Jahnke
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
| | - M Kunitski
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
| | - R Dörner
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
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17
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Waitz M, Bello RY, Metz D, Lower J, Trinter F, Schober C, Keiling M, Lenz U, Pitzer M, Mertens K, Martins M, Viefhaus J, Klumpp S, Weber T, Schmidt LPH, Williams JB, Schöffler MS, Serov VV, Kheifets AS, Argenti L, Palacios A, Martín F, Jahnke T, Dörner R. Imaging the square of the correlated two-electron wave function of a hydrogen molecule. Nat Commun 2017; 8:2266. [PMID: 29273745 PMCID: PMC5741688 DOI: 10.1038/s41467-017-02437-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 11/30/2017] [Indexed: 11/23/2022] Open
Abstract
The toolbox for imaging molecules is well-equipped today. Some techniques visualize the geometrical structure, others the electron density or electron orbitals. Molecules are many-body systems for which the correlation between the constituents is decisive and the spatial and the momentum distribution of one electron depends on those of the other electrons and the nuclei. Such correlations have escaped direct observation by imaging techniques so far. Here, we implement an imaging scheme which visualizes correlations between electrons by coincident detection of the reaction fragments after high energy photofragmentation. With this technique, we examine the H2 two-electron wave function in which electron–electron correlation beyond the mean-field level is prominent. We visualize the dependence of the wave function on the internuclear distance. High energy photoelectrons are shown to be a powerful tool for molecular imaging. Our study paves the way for future time resolved correlation imaging at FELs and laser based X-ray sources. Electron-electron correlation is a complex and interesting phenomenon that occurs in multi-electron systems. Here, the authors demonstrate the imaging of the correlated two-electron wave function in hydrogen molecule using the coincident detection of the electron and proton after the photoionization.
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Affiliation(s)
- M Waitz
- Institut für Kernphysik, J. W. Goethe Universität, Max-von-Laue-Str. 1, 60438, Frankfurt, Germany
| | - R Y Bello
- Departamento de Química, Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - D Metz
- Institut für Kernphysik, J. W. Goethe Universität, Max-von-Laue-Str. 1, 60438, Frankfurt, Germany
| | - J Lower
- Institut für Kernphysik, J. W. Goethe Universität, Max-von-Laue-Str. 1, 60438, Frankfurt, Germany
| | - F Trinter
- Institut für Kernphysik, J. W. Goethe Universität, Max-von-Laue-Str. 1, 60438, Frankfurt, Germany
| | - C Schober
- Institut für Kernphysik, J. W. Goethe Universität, Max-von-Laue-Str. 1, 60438, Frankfurt, Germany
| | - M Keiling
- Institut für Kernphysik, J. W. Goethe Universität, Max-von-Laue-Str. 1, 60438, Frankfurt, Germany
| | - U Lenz
- Institut für Kernphysik, J. W. Goethe Universität, Max-von-Laue-Str. 1, 60438, Frankfurt, Germany
| | - M Pitzer
- Universität Kassel, Heinr.-Plett-Strasse 40, 34132, Kassel, Germany
| | - K Mertens
- Institut für Experimentalphysik, Universität Hamburg, Luruper Chaussee 149, 22761, Hamburg, Germany
| | - M Martins
- Institut für Experimentalphysik, Universität Hamburg, Luruper Chaussee 149, 22761, Hamburg, Germany
| | - J Viefhaus
- FS-PE, Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607, Hamburg, Germany
| | - S Klumpp
- FS-FLASH-D, Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607, Hamburg, Germany
| | - T Weber
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - L Ph H Schmidt
- Institut für Kernphysik, J. W. Goethe Universität, Max-von-Laue-Str. 1, 60438, Frankfurt, Germany
| | - J B Williams
- Department of Physics, University of Nevada Reno, 1664 N. Virginia Street, Reno, NV, 89557, USA
| | - M S Schöffler
- Institut für Kernphysik, J. W. Goethe Universität, Max-von-Laue-Str. 1, 60438, Frankfurt, Germany
| | - V V Serov
- Department of Theoretical Physics, Saratov State University, 83 Astrakhanskaya, Saratov, 410012, Russia
| | - A S Kheifets
- Research School of Physical Sciences, The Australian National University, Canberra, ACT, 0200, Australia
| | - L Argenti
- Departamento de Química, Universidad Autónoma de Madrid, 28049, Madrid, Spain.,Department of Physics and CREOL College of Optics & Photonics, University of Central Florida, Orlando, FL 32816, USA
| | - A Palacios
- Departamento de Química, Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - F Martín
- Departamento de Química, Universidad Autónoma de Madrid, 28049, Madrid, Spain. .,Instituto Madrileo de Estudios Avanzados en Nanociencia, 28049, Madrid, Spain. .,Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, 28049, Madrid, Spain.
| | - T Jahnke
- Institut für Kernphysik, J. W. Goethe Universität, Max-von-Laue-Str. 1, 60438, Frankfurt, Germany
| | - R Dörner
- Institut für Kernphysik, J. W. Goethe Universität, Max-von-Laue-Str. 1, 60438, Frankfurt, Germany.
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18
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Sann H, Schober C, Mhamdi A, Trinter F, Müller C, Semenov SK, Stener M, Waitz M, Bauer T, Wallauer R, Goihl C, Titze J, Afaneh F, Schmidt LPH, Kunitski M, Schmidt-Böcking H, Demekhin PV, Cherepkov NA, Schöffler MS, Jahnke T, Dörner R. Delocalization of a Vacancy across Two Neon Atoms Bound by the van der Waals Force. Phys Rev Lett 2016; 117:263001. [PMID: 28059541 DOI: 10.1103/physrevlett.117.263001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Indexed: 06/06/2023]
Abstract
We experimentally study 2p photoionization of neon dimers (Ne_{2}) at a photon energy of hν=36.56 eV. By postselection of ionization events which lead to a dissociation into Ne^{+}+Ne we obtain the photoelectron angular emission distribution in the molecular frame. This distribution is symmetric with respect to the direction of the charged vs neutral fragment. It shows an inverted Cohen-Fano double slit interference pattern of two spherical waves emitted coherently but with opposite phases from the two atoms of the dimer.
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Affiliation(s)
- H Sann
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - C Schober
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - A Mhamdi
- Institut für Physik und Center for Interdisciplinary Nanostructure Science and Technology, Universität Kassel, Heinrich-Plett-Strasse 40, 34132 Kassel, Germany
| | - F Trinter
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - C Müller
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - S K Semenov
- State University of Aerospace Instrumentation, 190000, St. Petersburg, Russia
| | - M Stener
- Dipartimento di Scienze Chimiche, Universita di Trieste, Via L. Giorgieri 1, I-34127 Trieste, Italy
| | - M Waitz
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - T Bauer
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - R Wallauer
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - C Goihl
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - J Titze
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - F Afaneh
- Physics Department, The Hashemite University, Zarqa 13133, Jordan
| | - L Ph H Schmidt
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - M Kunitski
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - H Schmidt-Böcking
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - Ph V Demekhin
- Institut für Physik und Center for Interdisciplinary Nanostructure Science and Technology, Universität Kassel, Heinrich-Plett-Strasse 40, 34132 Kassel, Germany
| | - N A Cherepkov
- State University of Aerospace Instrumentation, 190000, St. Petersburg, Russia
| | - M S Schöffler
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - T Jahnke
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - R Dörner
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
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19
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Waitz M, Aslitürk D, Wechselberger N, Gill HK, Rist J, Wiegandt F, Goihl C, Kastirke G, Weller M, Bauer T, Metz D, Sturm FP, Voigtsberger J, Zeller S, Trinter F, Schiwietz G, Weber T, Williams JB, Schöffler MS, Schmidt LPH, Jahnke T, Dörner R. Erratum: Electron Localization in Dissociating H_{2}^{+} by Retroaction of a Photoelectron onto Its Source [Phys. Rev. Lett. 116, 043001 (2016)]. Phys Rev Lett 2016; 117:259901. [PMID: 28036223 DOI: 10.1103/physrevlett.117.259901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Indexed: 06/06/2023]
Abstract
This corrects the article DOI: 10.1103/PhysRevLett.116.043001.
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20
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Eckart S, Richter M, Kunitski M, Hartung A, Rist J, Henrichs K, Schlott N, Kang H, Bauer T, Sann H, Schmidt LPH, Schöffler M, Jahnke T, Dörner R. Nonsequential Double Ionization by Counterrotating Circularly Polarized Two-Color Laser Fields. Phys Rev Lett 2016; 117:133202. [PMID: 27715093 DOI: 10.1103/physrevlett.117.133202] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Indexed: 06/06/2023]
Abstract
We report on nonsequential double ionization of Ar by a laser pulse consisting of two counterrotating circularly polarized fields (390 and 780 nm). The double-ionization probability depends strongly on the relative intensity of the two fields and shows a kneelike structure as a function of intensity. We conclude that double ionization is driven by a beam of nearly monoenergetic recolliding electrons, which can be controlled in intensity and energy by the field parameters. The electron momentum distributions show the recolliding electron as well as a second electron which escapes from an intermediate excited state of Ar^{+}.
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Affiliation(s)
- S Eckart
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - M Richter
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - M Kunitski
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - A Hartung
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - J Rist
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - K Henrichs
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - N Schlott
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - H Kang
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China
| | - T Bauer
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - H Sann
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - L Ph H Schmidt
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - M Schöffler
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - T Jahnke
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - R Dörner
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
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21
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Waitz M, Metz D, Lower J, Schober C, Keiling M, Pitzer M, Mertens K, Martins M, Viefhaus J, Klumpp S, Weber T, Schmidt-Böcking H, Schmidt LPH, Morales F, Miyabe S, Rescigno TN, McCurdy CW, Martín F, Williams JB, Schöffler MS, Jahnke T, Dörner R. Two-Particle Interference of Electron Pairs on a Molecular Level. Phys Rev Lett 2016; 117:083002. [PMID: 27588854 DOI: 10.1103/physrevlett.117.083002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Indexed: 06/06/2023]
Abstract
We investigate the photodouble ionization of H_{2} molecules with 400 eV photons. We find that the emitted electrons do not show any sign of two-center interference fringes in their angular emission distributions if considered separately. In contrast, the quasiparticle consisting of both electrons (i.e., the "dielectron") does. The work highlights the fact that nonlocal effects are embedded everywhere in nature where many-particle processes are involved.
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Affiliation(s)
- M Waitz
- Institut für Kernphysik, J. W. Goethe Universität, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - D Metz
- Institut für Kernphysik, J. W. Goethe Universität, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - J Lower
- Institut für Kernphysik, J. W. Goethe Universität, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - C Schober
- Institut für Kernphysik, J. W. Goethe Universität, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - M Keiling
- Institut für Kernphysik, J. W. Goethe Universität, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - M Pitzer
- Universität Kassel, Heinr.-Plett-Straße 40, 34132 Kassel, Germany
| | - K Mertens
- Institut für Experimentalphysik, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany
| | - M Martins
- Institut für Experimentalphysik, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany
| | - J Viefhaus
- FS-PE, Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - S Klumpp
- FS-FL, Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - T Weber
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - H Schmidt-Böcking
- Institut für Kernphysik, J. W. Goethe Universität, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - L Ph H Schmidt
- Institut für Kernphysik, J. W. Goethe Universität, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - F Morales
- Max-Born-Institut, Max Born Strasse 2 A, D-12489 Berlin, Germany
| | - S Miyabe
- Attosecond Science Research Team, RIKEN Center for Advanced Photonics, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
| | - T N Rescigno
- Ultrafast X-ray Science Laboratory, Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - C W McCurdy
- Ultrafast X-ray Science Laboratory, Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
- Department of Chemistry, University of California, Davis, California 95616, USA
| | - F Martín
- Departamento de Química, Universidad Autonoma de Madrid, 28049 Madrid, Spain
- Instituto Madrileño de Estudios Avanzados en Nanociencia, 28049 Madrid, Spain
- Condensed Matter Physics Center (IFIMAC), Universidad Autonoma de Madrid, 28049 Madrid, Spain
| | - J B Williams
- Department of Physics, University of Nevada Reno, 1664 North Virginia Street Reno, Nevada 89557, USA
| | - M S Schöffler
- Institut für Kernphysik, J. W. Goethe Universität, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - T Jahnke
- Institut für Kernphysik, J. W. Goethe Universität, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - R Dörner
- Institut für Kernphysik, J. W. Goethe Universität, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
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22
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Gassert H, Chuluunbaatar O, Waitz M, Trinter F, Kim HK, Bauer T, Laucke A, Müller C, Voigtsberger J, Weller M, Rist J, Pitzer M, Zeller S, Jahnke T, Schmidt LPH, Williams JB, Zaytsev SA, Bulychev AA, Kouzakov KA, Schmidt-Böcking H, Dörner R, Popov YV, Schöffler MS. Agreement of Experiment and Theory on the Single Ionization of Helium by Fast Proton Impact. Phys Rev Lett 2016; 116:073201. [PMID: 26943532 DOI: 10.1103/physrevlett.116.073201] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Indexed: 06/05/2023]
Abstract
Even though the study of ion-atom collisions is a mature field of atomic physics, large discrepancies between experiment and theoretical calculations are still common. Here we present experimental results with high momentum resolution on the single ionization of helium induced by 1-MeV protons, and we compare these to theoretical calculations. The overall agreement is strikingly good, and even the first Born approximation yields good agreement between theory and experiment. This has been expected for several decades, but so far has not been accomplished. The influence of projectile coherence effects on the measured data is briefly discussed in terms of an ongoing dispute on the existence of nodal structures in the electron angular emission distributions.
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Affiliation(s)
- H Gassert
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - O Chuluunbaatar
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
- Institute of Mathematics, National University of Mongolia, 210646 Ulaanbaatar, Mongolia
| | - M Waitz
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - F Trinter
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - H-K Kim
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - T Bauer
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - A Laucke
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - Ch Müller
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - J Voigtsberger
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - M Weller
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - J Rist
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - M Pitzer
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - S Zeller
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - T Jahnke
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - L Ph H Schmidt
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - J B Williams
- Department of Physics, University of Nevada, Reno, Nevada 89557, USA
| | - S A Zaytsev
- Department of Physics, Pacific State University, Tikhookeanskaya 136, Khabarovsk 680035, Russia
| | - A A Bulychev
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
| | - K A Kouzakov
- Faculty of Physics, Lomonosov Moscow State University, Moscow 119991, Russia
| | - H Schmidt-Böcking
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - R Dörner
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - Yu V Popov
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow 119991, Russia
| | - M S Schöffler
- Institut für Kernphysik, Universität Frankfurt, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
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23
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Waitz M, Aslitürk D, Wechselberger N, Gill HK, Rist J, Wiegandt F, Goihl C, Kastirke G, Weller M, Bauer T, Metz D, Sturm FP, Voigtsberger J, Zeller S, Trinter F, Schiwietz G, Weber T, Williams JB, Schöffler MS, Schmidt LPH, Jahnke T, Dörner R. Electron Localization in Dissociating H_{2}^{+} by Retroaction of a Photoelectron onto Its Source. Phys Rev Lett 2016; 116:043001. [PMID: 26871325 DOI: 10.1103/physrevlett.116.043001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Indexed: 06/05/2023]
Abstract
We investigate the dissociation of H_{2}^{+} into a proton and a H^{0} after single ionization with photons of an energy close to the threshold. We find that the p^{+} and the H^{0} do not emerge symmetrically in the case of the H_{2}^{+} dissociating along the 1sσ_{g} ground state. Instead, a preference for the ejection of the p^{+} in the direction of the escaping photoelectron can be observed. This symmetry breaking is strongest for very small electron energies. Our experiment is consistent with a recent prediction by Serov and Kheifets [Phys. Rev. A 89, 031402 (2014)]. In their model, which treats the photoelectron classically, the symmetry breaking is induced by the retroaction of the long-range Coulomb potential onto the dissociating H_{2}^{+}.
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Affiliation(s)
- M Waitz
- Institut für Kernphysik, J.W. Goethe Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - D Aslitürk
- Institut für Kernphysik, J.W. Goethe Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - N Wechselberger
- Institut für Kernphysik, J.W. Goethe Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - H K Gill
- Institut für Kernphysik, J.W. Goethe Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - J Rist
- Institut für Kernphysik, J.W. Goethe Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - F Wiegandt
- Institut für Kernphysik, J.W. Goethe Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - C Goihl
- Institut für Kernphysik, J.W. Goethe Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - G Kastirke
- Institut für Kernphysik, J.W. Goethe Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - M Weller
- Institut für Kernphysik, J.W. Goethe Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - T Bauer
- Institut für Kernphysik, J.W. Goethe Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - D Metz
- Institut für Kernphysik, J.W. Goethe Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - F P Sturm
- Institut für Kernphysik, J.W. Goethe Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - J Voigtsberger
- Institut für Kernphysik, J.W. Goethe Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - S Zeller
- Institut für Kernphysik, J.W. Goethe Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - F Trinter
- Institut für Kernphysik, J.W. Goethe Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - G Schiwietz
- Helmholtz-Zentrum Berlin für Materialien und Energie, Institute G-ISRR, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
| | - T Weber
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - J B Williams
- Institut für Kernphysik, J.W. Goethe Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - M S Schöffler
- Institut für Kernphysik, J.W. Goethe Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - L Ph H Schmidt
- Institut für Kernphysik, J.W. Goethe Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - T Jahnke
- Institut für Kernphysik, J.W. Goethe Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - R Dörner
- Institut für Kernphysik, J.W. Goethe Universität, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
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24
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Trinter F, Williams JB, Weller M, Waitz M, Pitzer M, Voigtsberger J, Schober C, Kastirke G, Müller C, Goihl C, Burzynski P, Wiegandt F, Wallauer R, Kalinin A, Schmidt LPH, Schöffler MS, Chiang YC, Gokhberg K, Jahnke T, Dörner R. Vibrationally resolved decay width of interatomic Coulombic decay in HeNe. Phys Rev Lett 2013; 111:233004. [PMID: 24476268 DOI: 10.1103/physrevlett.111.233004] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2013] [Indexed: 06/03/2023]
Abstract
We investigate the ionization of HeNe from below the He 1s3p excitation to the He ionization threshold. We observe HeNe+ ions with an enhancement by more than a factor of 60 when the He side couples resonantly to the radiation field. These ions are an experimental proof of a two-center resonant photoionization mechanism predicted by Najjari et al. [Phys. Rev. Lett. 105, 153002 (2010)]. Furthermore, our data provide electronic and vibrational state resolved decay widths of interatomic Coulombic decay in HeNe dimers. We find that the interatomic Coulombic decay lifetime strongly increases with increasing vibrational state.
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Affiliation(s)
- F Trinter
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Strasse 1, D-60438 Frankfurt am Main, Germany
| | - J B Williams
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Strasse 1, D-60438 Frankfurt am Main, Germany
| | - M Weller
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Strasse 1, D-60438 Frankfurt am Main, Germany
| | - M Waitz
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Strasse 1, D-60438 Frankfurt am Main, Germany
| | - M Pitzer
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Strasse 1, D-60438 Frankfurt am Main, Germany
| | - J Voigtsberger
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Strasse 1, D-60438 Frankfurt am Main, Germany
| | - C Schober
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Strasse 1, D-60438 Frankfurt am Main, Germany
| | - G Kastirke
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Strasse 1, D-60438 Frankfurt am Main, Germany
| | - C Müller
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Strasse 1, D-60438 Frankfurt am Main, Germany
| | - C Goihl
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Strasse 1, D-60438 Frankfurt am Main, Germany
| | - P Burzynski
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Strasse 1, D-60438 Frankfurt am Main, Germany
| | - F Wiegandt
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Strasse 1, D-60438 Frankfurt am Main, Germany
| | - R Wallauer
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Strasse 1, D-60438 Frankfurt am Main, Germany
| | - A Kalinin
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Strasse 1, D-60438 Frankfurt am Main, Germany
| | - L Ph H Schmidt
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Strasse 1, D-60438 Frankfurt am Main, Germany
| | - M S Schöffler
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Strasse 1, D-60438 Frankfurt am Main, Germany
| | - Y-C Chiang
- Theoretische Chemie, Universität Heidelberg, Im Neuenheimer Feld 229, D-69120 Heidelberg, Germany
| | - K Gokhberg
- Theoretische Chemie, Universität Heidelberg, Im Neuenheimer Feld 229, D-69120 Heidelberg, Germany
| | - T Jahnke
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Strasse 1, D-60438 Frankfurt am Main, Germany
| | - R Dörner
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Strasse 1, D-60438 Frankfurt am Main, Germany
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25
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Schmidt LPH, Lower J, Jahnke T, Schößler S, Schöffler MS, Menssen A, Lévêque C, Sisourat N, Taïeb R, Schmidt-Böcking H, Dörner R. Momentum transfer to a free floating double slit: realization of a thought experiment from the Einstein-Bohr debates. Phys Rev Lett 2013; 111:103201. [PMID: 25166663 DOI: 10.1103/physrevlett.111.103201] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2013] [Revised: 06/04/2013] [Indexed: 06/03/2023]
Abstract
We simultaneously measured the momentum transferred to a free-floating molecular double slit and the momentum change of the atom scattering from it. Our experimental results are compared to quantum mechanical and semiclassical models. The results reveal that a classical description of the slits, which was used by Einstein in his debate with Bohr, provides a surprisingly good description of the experimental results, even for a microscopic system, if momentum transfer is not ascribed to a specific pathway but shared coherently and simultaneously between both.
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Affiliation(s)
- L Ph H Schmidt
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - J Lower
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - T Jahnke
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - S Schößler
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - M S Schöffler
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - A Menssen
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - C Lévêque
- Laboratoire de Chimie Physique-Matière et Rayonnement, Université Pierre et Marie Curie, 11 Rue Pierre et Marie Curie, 75231 Paris 05, France
| | - N Sisourat
- Laboratoire de Chimie Physique-Matière et Rayonnement, Université Pierre et Marie Curie, 11 Rue Pierre et Marie Curie, 75231 Paris 05, France
| | - R Taïeb
- Laboratoire de Chimie Physique-Matière et Rayonnement, Université Pierre et Marie Curie, 11 Rue Pierre et Marie Curie, 75231 Paris 05, France
| | - H Schmidt-Böcking
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - R Dörner
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
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26
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Trinter F, Williams JB, Weller M, Waitz M, Pitzer M, Voigtsberger J, Schober C, Kastirke G, Müller C, Goihl C, Burzynski P, Wiegandt F, Bauer T, Wallauer R, Sann H, Kalinin A, Schmidt LPH, Schöffler M, Sisourat N, Jahnke T. Evolution of interatomic Coulombic decay in the time domain. Phys Rev Lett 2013; 111:093401. [PMID: 24033031 DOI: 10.1103/physrevlett.111.093401] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2013] [Indexed: 06/02/2023]
Abstract
During the past 15 years a novel decay mechanism of excited atoms has been discovered and investigated. This so-called interatomic Coulombic decay (ICD) involves the chemical environment of the electronically excited atom: the excitation energy is transferred (in many cases over long distances) to a neighbor of the initially excited particle usually ionizing that neighbor. It turned out that ICD is a very common decay route in nature as it occurs across van der Waals and hydrogen bonds. The time evolution of ICD is predicted to be highly complex, as its efficiency strongly depends on the distance of the atoms involved and this distance typically changes during the decay. Here we present the first direct measurement of the temporal evolution of ICD using a novel experimental approach.
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Affiliation(s)
- F Trinter
- Institut für Kernphysik, Goethe Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
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27
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Wu J, Gong X, Kunitski M, Amankona-Diawuo FK, Schmidt LPH, Jahnke T, Czasch A, Seideman T, Dörner R. Strong field multiple ionization as a route to electron dynamics in a van der Waals cluster. Phys Rev Lett 2013; 111:083003. [PMID: 24010435 DOI: 10.1103/physrevlett.111.083003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2013] [Indexed: 06/02/2023]
Abstract
We study the order in which a strong laser field removes multiple electrons from a van der Waals (vdW) cluster. The N2Ar, with an equilibrium T-shaped geometry, contains both a covalent and a vdW bond and serves as a simple yet rich example. Interestingly, the fragmenting double and triple ionizations of N2Ar with vdW bond breaking are favored when the vdW bond is aligned along the laser field polarization vector. However, the orientation of the covalent bond with respect to the laser field rules the triple ionization when both the covalent and vdW bonds are simultaneously broken. Electron-localization-assisted enhanced ionization and molecular orbital profile-dominated, orientation-dependent ionization are discussed to reveal the order of electrons release from different sites of N2Ar.
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Affiliation(s)
- J Wu
- State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China
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28
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Wu J, Kunitski M, Pitzer M, Trinter F, Schmidt LPH, Jahnke T, Magrakvelidze M, Madsen CB, Madsen LB, Thumm U, Dörner R. Electron-nuclear energy sharing in above-threshold multiphoton dissociative ionization of H2. Phys Rev Lett 2013; 111:023002. [PMID: 23889391 DOI: 10.1103/physrevlett.111.023002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2013] [Indexed: 05/20/2023]
Abstract
We report experimental observation of the energy sharing between electron and nuclei in above-threshold multiphoton dissociative ionization of H2 by strong laser fields. The absorbed photon energy is shared between the ejected electron and nuclei in a correlated fashion, resulting in multiple diagonal lines in their joint energy spectrum governed by the energy conservation of all fragment particles.
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Affiliation(s)
- J Wu
- State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China.
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29
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Wu J, Magrakvelidze M, Vredenborg A, Schmidt LPH, Jahnke T, Czasch A, Dörner R, Thumm U. Steering the nuclear motion in singly ionized argon dimers with mutually detuned laser pulses. Phys Rev Lett 2013; 110:033005. [PMID: 23373922 DOI: 10.1103/physrevlett.110.033005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2012] [Indexed: 06/01/2023]
Abstract
We demonstrate that the vibrational nuclear motion of singly ionized argon dimers can be controlled with two ultrashort laser pulses of different wavelengths. In particular, we observe a striking "gap" in the pump-probe-delay-dependent kinetic-energy release spectrum only if the probe-pulse wavelength exceeds the pump-pulse wavelength. This "frustrated dissociation effect" is reproduced by our two-state quantum mechanical model, validating its interpretation as a pump-pulse-initiated population transfer between dipole-coupled Born-Oppenheimer electronic states of the dissociating Ar(2)(+) molecular ion. Our numerical results also reproduce the measured collapse and fractional revival of the oscillating Ar(2)(+) nuclear wave packet, and, for single-pulse dissociation, the decrease of the kinetic-energy release with increasing laser wavelength.
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Affiliation(s)
- J Wu
- Institut für Kernphysik, Goethe-Universität, Frankfurt, Germany
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30
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Wu J, Kunitski M, Schmidt LPH, Jahnke T, Dörner R. Structures of N2Ar, O2Ar, and O2Xe dimers studied by Coulomb explosion imaging. J Chem Phys 2012; 137:104308. [DOI: 10.1063/1.4750980] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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31
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Wu J, Schmidt LPH, Kunitski M, Meckel M, Voss S, Sann H, Kim H, Jahnke T, Czasch A, Dörner R. Multiorbital tunneling ionization of the CO molecule. Phys Rev Lett 2012; 108:183001. [PMID: 22681068 DOI: 10.1103/physrevlett.108.183001] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2011] [Indexed: 06/01/2023]
Abstract
We coincidently measure the molecular-frame photoelectron angular distribution and the ion sum-momentum distribution of single and double ionization of CO molecules by using circularly and elliptically polarized femtosecond laser pulses, respectively. The orientation dependent ionization rates for various kinetic energy releases allow us to individually identify the ionizations of multiple orbitals, ranging from the highest occupied to the next two lower-lying molecular orbitals for various channels observed in our experiments. Not only the emission of a single electron, but also the sequential tunneling dynamics of two electrons from multiple orbitals are traced step by step. Our results confirm that the shape of the ionizing orbitals determine the strong laser field tunneling ionization in the CO molecule, whereas the linear Stark effect plays a minor role.
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Affiliation(s)
- J Wu
- Institut für Kernphysik, Goethe Universität, Max-von-Laue-Strasse 1, D-60438 Frankfurt, Germany
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32
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Schmidt LPH, Jahnke T, Czasch A, Schöffler M, Schmidt-Böcking H, Dörner R. Spatial imaging of the H2(+) vibrational wave function at the quantum limit. Phys Rev Lett 2012; 108:073202. [PMID: 22401202 DOI: 10.1103/physrevlett.108.073202] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2011] [Indexed: 05/31/2023]
Abstract
We experimentally obtained a direct image of the nuclear wave functions of H(2)(+) by dissociating the molecule via electron attachment and determining the vibrational state using the cold target recoil ion momentum spectroscopy technique. Our experiment visualizes the nodal structure of different vibrational states. We compare our results to the widely used reflection approximation and to quantum simulations and discuss the limits of position measurements in molecules imposed by the uncertainty principle.
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Affiliation(s)
- L Ph H Schmidt
- Institut für Kernphysik, Goethe-Universität, Frankfurt am Main, Germany.
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33
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Schulz M, Wang X, Gundmundsson M, Schneider K, Kelkar A, Voitkiv AB, Najjari B, Schöffler M, Schmidt LPH, Dörner R, Ullrich J, Moshammer R, Fischer D. Strongly enhanced backward emission of electrons in transfer and ionization. Phys Rev Lett 2012; 108:043202. [PMID: 22400839 DOI: 10.1103/physrevlett.108.043202] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2011] [Indexed: 05/31/2023]
Abstract
We studied three-dimensional angular distributions and longitudinal momentum spectra of electrons ejected in transfer plus ionization (TI), i.e., the ejection of one and the capture of a second target electron, for ion-helium collisions. We observe a pronounced structure strongly focused opposite to the projectile beam direction, which we associate with a new correlated TI mechanism proposed recently. This process contributes significantly to the total cross sections over a broad range of perturbations η, even at η as large as 0.5, where uncorrelated TI mechanisms were thought to be dominant.
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Affiliation(s)
- M Schulz
- Physics Department and LAMOR, Missouri University of Science & Technology, Rolla, Missouri 65409, USA
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Wu J, Meckel M, Voss S, Sann H, Kunitski M, Schmidt LPH, Czasch A, Kim H, Jahnke T, Dörner R. Coulomb asymmetry in strong field multielectron ionization of diatomic molecules. Phys Rev Lett 2012; 108:043002. [PMID: 22400834 DOI: 10.1103/physrevlett.108.043002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2011] [Indexed: 05/31/2023]
Abstract
We measure the angular distribution of an electron emitted by a strong elliptically polarized two-color laser field from exploding doubly charged molecular nitrogen. This angular distribution is vastly different for emission of the electron from the up-field core of the molecule as compared to that from the down-field core. The emission from the down-field core leads to a slight rotation with respect to the internuclear axis in the direction expected by the Coulomb effect of the remaining ion, while, for the emission from the up-field core, this direction is inversed. Our semiclassical simulations suggest that this unexpected angular distribution is caused by an initial longitudinal momentum of the electron freed by over-the-barrier ionization above the inner barrier in the molecule. The initial kinetic energy is in the range of the potential energy of the Stark-shifted orbital above the barrier.
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Affiliation(s)
- J Wu
- Institut für Kernphysik, Goethe Universität, Max-von-Laue-Strasse 1, D-60438 Frankfurt, Germany
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35
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Odenweller M, Takemoto N, Vredenborg A, Cole K, Pahl K, Titze J, Schmidt LPH, Jahnke T, Dörner R, Becker A. Strong field electron emission from fixed in space H(2)(+) ions. Phys Rev Lett 2011; 107:143004. [PMID: 22107190 DOI: 10.1103/physrevlett.107.143004] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2011] [Indexed: 05/31/2023]
Abstract
We have studied electron emission from the H(2)(+) ion by a circularly polarized laser pulse (800 nm, 6×10(14) W/cm(2)). The electron momentum distribution in the body fixed frame of the molecule is experimentally obtained by a coincident detection of electrons and protons. The data are compared to a solution of the time-dependent Schrödinger equation in two dimensions. We find radial and angular distributions which are at odds with the quasistatic enhanced ionization model. The unexpected momentum distribution is traced back to a complex laser-driven electron dynamics inside the molecule influencing the instant of ionization and the initial momentum of the electron.
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Affiliation(s)
- M Odenweller
- Institut für Kernphysik, J. W. Goethe-Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt am Main, Germany
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36
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Wu J, Vredenborg A, Ulrich B, Schmidt LPH, Meckel M, Voss S, Sann H, Kim H, Jahnke T, Dörner R. Multiple recapture of electrons in multiple ionization of the argon dimer by a strong laser field. Phys Rev Lett 2011; 107:043003. [PMID: 21866999 DOI: 10.1103/physrevlett.107.043003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2011] [Indexed: 05/31/2023]
Abstract
We observe multiply frustrated tunneling ionization-induced dissociation of the argon dimers by intense linearly polarized ultrashort laser pulses. By measuring the kinetic energy release and angular distribution of the Coulomb explosion of up to eightfold ionized argon dimers, we can trace the recapture of up to two electrons to Rydberg states of the highly charged compound at the end of the laser pulse. Upon dissociation of the dimer, the Rydberg electron prefers to localize at the atomic ion with the higher charge state. We probe the electron recapture dynamics by a time-delayed weak pulse.
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Affiliation(s)
- J Wu
- Institut für Kernphysik, Goethe Universität, Max-von-Laue-Strasse 1, D-60438 Frankfurt, Germany
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37
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Ulrich B, Vredenborg A, Malakzadeh A, Schmidt LPH, Havermeier T, Meckel M, Cole K, Smolarski M, Chang Z, Jahnke T, Dörner R. Imaging of the Structure of the Argon and Neon Dimer, Trimer, and Tetramer. J Phys Chem A 2011; 115:6936-41. [DOI: 10.1021/jp1121245] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- B. Ulrich
- Institut für Kernphysik, Goethe Universität, Max-von-Laue-Strasse 1, 60486 Frankfurt, Germany
| | - A. Vredenborg
- Institut für Kernphysik, Goethe Universität, Max-von-Laue-Strasse 1, 60486 Frankfurt, Germany
| | - A. Malakzadeh
- Institut für Kernphysik, Goethe Universität, Max-von-Laue-Strasse 1, 60486 Frankfurt, Germany
| | - L. Ph. H. Schmidt
- Institut für Kernphysik, Goethe Universität, Max-von-Laue-Strasse 1, 60486 Frankfurt, Germany
| | - T. Havermeier
- Institut für Kernphysik, Goethe Universität, Max-von-Laue-Strasse 1, 60486 Frankfurt, Germany
| | - M. Meckel
- Institut für Kernphysik, Goethe Universität, Max-von-Laue-Strasse 1, 60486 Frankfurt, Germany
| | - K. Cole
- Institut für Kernphysik, Goethe Universität, Max-von-Laue-Strasse 1, 60486 Frankfurt, Germany
| | - M. Smolarski
- Department Physik, ETH Zürich, Wolfgang-Pauli-Strasse 16, 8093 Zürich, Switzerland
| | - Z. Chang
- Physics Department, Kansas State University, 116 Cardwell Hall, Manhattan, Kansas 66506, United States
| | - T. Jahnke
- Institut für Kernphysik, Goethe Universität, Max-von-Laue-Strasse 1, 60486 Frankfurt, Germany
| | - R. Dörner
- Institut für Kernphysik, Goethe Universität, Max-von-Laue-Strasse 1, 60486 Frankfurt, Germany
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38
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Titze J, Schöffler MS, Kim HK, Trinter F, Waitz M, Voigtsberger J, Neumann N, Ulrich B, Kreidi K, Wallauer R, Odenweller M, Havermeier T, Schössler S, Meckel M, Foucar L, Jahnke T, Czasch A, Schmidt LPH, Jagutzki O, Grisenti RE, Schmidt-Böcking H, Lüdde HJ, Dörner R. Ionization dynamics of helium dimers in fast collisions with He++. Phys Rev Lett 2011; 106:033201. [PMID: 21405271 DOI: 10.1103/physrevlett.106.033201] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2010] [Indexed: 05/30/2023]
Abstract
By employing the cold target recoil ion momentum spectroscopy technique, we have investigated the (He+, He+) breakup of a helium dimer (He2) caused by transfer ionization and double capture in collisions with alpha particles (E = 150 keV/u). Surprisingly, the results show a two-step process as well as a one-step process followed by electron exchange. In addition, interatomic Coulombic decay [L. S. Cederbaum, J. Zobeley, and F. Tarantelli, Phys. Rev. Lett. 79, 4778 (1997).] is observed in an ion collision for the first time.
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Affiliation(s)
- J Titze
- Institut für Kernphysik, Goethe-Universität Frankfurt am Main, Max-von-Laue-Str 1, 60438 Frankfurt, Germany
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39
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Neumann N, Hant D, Schmidt LPH, Titze J, Jahnke T, Czasch A, Schöffler MS, Kreidi K, Jagutzki O, Schmidt-Böcking H, Dörner R. Fragmentation dynamics of CO(2)(3+) investigated by multiple electron capture in collisions with slow highly charged ions. Phys Rev Lett 2010; 104:103201. [PMID: 20366421 DOI: 10.1103/physrevlett.104.103201] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2009] [Indexed: 05/29/2023]
Abstract
Fragmentation of highly charged molecular ions or clusters consisting of more than two atoms can proceed in a one step synchronous manner where all bonds break simultaneously or sequentially by emitting one ion after the other. We separated these decay channels for the fragmentation of CO(2)(3+) ions by measuring the momenta of the ionic fragments. We show that the total energy deposited in the molecular ion is a control parameter which switches between three distinct fragmentation pathways: the sequential fragmentation in which the emission of an O(+) ion leaves a rotating CO(2+) ion behind that fragments after a time delay, the Coulomb explosion and an in-between fragmentation--the asynchronous dissociation. These mechanisms are directly distinguishable in Dalitz plots and Newton diagrams of the fragment momenta. The CO(2)(3+) ions are produced by multiple electron capture in collisions with 3.2 keV/u Ar(8+) ions.
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Affiliation(s)
- N Neumann
- Institut für Kernphysik, Goethe-Universität Frankfurt am Main, Max-von-Laue-Str.1, 60438 Frankfurt, Germany
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40
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Kreidi K, Demekhin PV, Jahnke T, Weber T, Havermeier T, Liu XJ, Morisita Y, Schössler S, Schmidt LPH, Schöffler M, Odenweller M, Neumann N, Foucar L, Titze J, Ulrich B, Sturm F, Stuck C, Wallauer R, Voss S, Lauter I, Kim HK, Rudloff M, Fukuzawa H, Prümper G, Saito N, Ueda K, Czasch A, Jagutzki O, Schmidt-Böcking H, Scheit S, Cederbaum LS, Dörner R. Photo- and auger-electron recoil induced dynamics of interatomic Coulombic decay. Phys Rev Lett 2009; 103:033001. [PMID: 19659272 DOI: 10.1103/physrevlett.103.033001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2009] [Indexed: 05/28/2023]
Abstract
At photon energies near the Ne K edge it is shown that for 1s ionization the Auger electron, and for 2s ionization the fast photoelectron, launch vibrational wave packets in a Ne dimer. These wave packets then decay by emission of a slow electron via interatomic Coulombic decay (ICD). The measured and computed ICD electron spectra are shown to be significantly modified by the recoil induced nuclear motion.
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Affiliation(s)
- K Kreidi
- Institut für Kernphysik, J. W. Goethe Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
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41
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Schmidt LPH, Schössler S, Afaneh F, Schöffler M, Stiebing KE, Schmidt-Böcking H, Dörner R. Young-type interference in collisions between hydrogen molecular ions and helium. Phys Rev Lett 2008; 101:173202. [PMID: 18999747 DOI: 10.1103/physrevlett.101.173202] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2008] [Indexed: 05/27/2023]
Abstract
The dissociative electron transfer from He into 10 keV H2+ was measured in a kinematically complete experiment by using the cold target recoil ion momentum spectroscopy imaging technique in combination with a highly resolving molecular fragment imaging technique. The electron transfer into the dissociative b(3)Sigma+_(u) state of H2 could be selected by kinematic conditions. We find a striking double slit interference pattern in the transverse momentum transfer which we can modify by selecting different internuclear distances. Compared to an optical double slit, interference minima and maxima are interchanged. The latter is the result of a phase shift in the electronic part of the wave function.
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Affiliation(s)
- L Ph H Schmidt
- Institut für Kernphysik, Goethe-Universität, Max-von-Laue-Strasse 1, Frankfurt am Main, Germany
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42
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Schöffler MS, Titze J, Petridis N, Jahnke T, Cole K, Schmidt LPH, Czasch A, Akoury D, Jagutzki O, Williams JB, Cherepkov NA, Semenov SK, McCurdy CW, Rescigno TN, Cocke CL, Osipov T, Lee S, Prior MH, Belkacem A, Landers AL, Schmidt-Böcking H, Weber T, Dörner R. Ultrafast probing of core hole localization in N2. Science 2008; 320:920-3. [PMID: 18487190 DOI: 10.1126/science.1154989] [Citation(s) in RCA: 159] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Although valence electrons are clearly delocalized in molecular bonding frameworks, chemists and physicists have long debated the question of whether the core vacancy created in a homonuclear diatomic molecule by absorption of a single x-ray photon is localized on one atom or delocalized over both. We have been able to clarify this question with an experiment that uses Auger electron angular emission patterns from molecular nitrogen after inner-shell ionization as an ultrafast probe of hole localization. The experiment, along with the accompanying theory, shows that observation of symmetry breaking (localization) or preservation (delocalization) depends on how the quantum entangled Bell state created by Auger decay is detected by the measurement.
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Affiliation(s)
- M S Schöffler
- Institut für Kernphysik, Johann Wolfgang Goethe-Universität Frankfurt am Main, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany.
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43
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Kreidi K, Akoury D, Jahnke T, Weber T, Staudte A, Schöffler M, Neumann N, Titze J, Schmidt LPH, Czasch A, Jagutzki O, Costa Fraga RA, Grisenti RE, Smolarski M, Ranitovic P, Cocke CL, Osipov T, Adaniya H, Thompson JC, Prior MH, Belkacem A, Landers AL, Schmidt-Böcking H, Dörner R. Interference in the collective electron momentum in double photoionization of H2. Phys Rev Lett 2008; 100:133005. [PMID: 18517946 DOI: 10.1103/physrevlett.100.133005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2007] [Indexed: 05/26/2023]
Abstract
We investigate single-photon double ionization of H(2) by 130 to 240 eV circularly polarized photons. We find a double slitlike interference pattern in the sum momentum of both electrons in the molecular frame which survives integration over all other degrees of freedom. The difference momentum and the individual electron momentum distributions do not show such a robust interference pattern. We show that this interference results from a non-Heitler-London fraction of the H(2) ground state where both electrons are at the same atomic center.
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Affiliation(s)
- K Kreidi
- Institut für Kernphysik, J.W. Goethe Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
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44
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Akoury D, Kreidi K, Jahnke T, Weber T, Staudte A, Schöffler M, Neumann N, Titze J, Schmidt LPH, Czasch A, Jagutzki O, Costa Fraga RA, Grisenti RE, Díez Muiño R, Cherepkov NA, Semenov SK, Ranitovic P, Cocke CL, Osipov T, Adaniya H, Thompson JC, Prior MH, Belkacem A, Landers AL, Schmidt-Böcking H, Dörner R. The simplest double slit: interference and entanglement in double photoionization of H2. Science 2007; 318:949-52. [PMID: 17991857 DOI: 10.1126/science.1144959] [Citation(s) in RCA: 197] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
The wave nature of particles is rarely observed, in part because of their very short de Broglie wavelengths in most situations. However, even with wavelengths close to the size of their surroundings, the particles couple to their environment (for example, by gravity, Coulomb interaction, or thermal radiation). These couplings shift the wave phases, often in an uncontrolled way, and the resulting decoherence, or loss of phase integrity, is thought to be a main cause of the transition from quantum to classical behavior. How much interaction is needed to induce this transition? Here we show that a photoelectron and two protons form a minimum particle/slit system and that a single additional electron constitutes a minimum environment. Interference fringes observed in the angular distribution of a single electron are lost through its Coulomb interaction with a second electron, though the correlated momenta of the entangled electron pair continue to exhibit quantum interference.
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Affiliation(s)
- D Akoury
- Institut für Kernphysik, University Frankfurt, Max von Laue Str 1, D-60438 Frankfurt, Germany
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45
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Jahnke T, Czasch A, Schöffler M, Schössler S, Käsz M, Titze J, Kreidi K, Grisenti RE, Staudte A, Jagutzki O, Schmidt LPH, Weber T, Schmidt-Böcking H, Ueda K, Dörner R. Experimental separation of virtual photon exchange and electron transfer in interatomic coulombic decay of neon dimers. Phys Rev Lett 2007; 99:153401. [PMID: 17995162 DOI: 10.1103/physrevlett.99.153401] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2007] [Indexed: 05/25/2023]
Abstract
We investigate the interatomic Coulombic decay (ICD) of neon dimers following photoionization with simultaneous excitation of the ionized atom (shakeup) in a multiparticle coincidence experiment. We find that, depending on the parity of the excited state, which determines whether ICD takes place via virtual dipole photon emission or overlap of the wave functions, the decay happens at different internuclear distances, illustrating that nuclear dynamics heavily influence the electronic decay in the neon dimer.
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Affiliation(s)
- T Jahnke
- Institut für Kernphysik, J. W. Goethe-Universität Frankfurt am Main, Max-von-Laue-Str. 1, D-60438 Frankfurt, Germany.
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46
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Czasch A, Schöffler M, Hattass M, Schössler S, Jahnke T, Weber T, Staudte A, Titze J, Wimmer C, Kammer S, Weckenbrock M, Voss S, Grisenti RE, Jagutzki O, Schmidt LPH, Schmidt-Böcking H, Dörner R, Rost JM, Schneider T, Liu CN, Bray I, Kheifets AS, Bartschat K. Partial photoionization cross sections and angular distributions for double excitation of helium up to the N = 13 threshold. Phys Rev Lett 2005; 95:243003. [PMID: 16384373 DOI: 10.1103/physrevlett.95.243003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2004] [Indexed: 05/05/2023]
Abstract
Partial photoionization cross sections sigmaN(Egamma) and photoelectron angular distributions betaN(Egamma) were measured for the final ionic states He+ (N > 4) in the region between the N = 8 and N = 13 thresholds (Egamma > 78.155 eV) using the cold target recoil ion momentum spectroscopy technique (COLTRIMS). Comparison of the experimental data with two independent sets of theoretical predictions reveals disagreement for the branching ratios to the various HeN(+) states. The angular distributions just below the double ionization threshold suggest an excitation process for highly excited N states similar to the Wannier mechanism for double ionization.
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Affiliation(s)
- A Czasch
- Institut für Kernphysik, Universität Frankfurt, D-60438 Frankfurt, Germany.
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47
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Jahnke T, Foucar L, Titze J, Wallauer R, Osipov T, Benis EP, Alnaser A, Jagutzki O, Arnold W, Semenov SK, Cherepkov NA, Schmidt LPH, Czasch A, Staudte A, Schöffler M, Cocke CL, Prior MH, Schmidt-Böcking H, Dörner R. Vibrationally resolved K-shell photoionization of CO with circularly polarized light. Phys Rev Lett 2004; 93:083002. [PMID: 15447180 DOI: 10.1103/physrevlett.93.083002] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2004] [Indexed: 05/24/2023]
Abstract
Diffraction of a low energy (<4 eV) carbon-K-photoelectron wave that is created inside a CO molecule by absorption of a circularly polarized photon is investigated. The measurements resolve the vibrational states of the K-shell ionized CO+ molecule and display the photoelectron diffraction patterns in the molecular frame. These show significant variation for the different vibrational states. This effect is stronger than predicted by state-of-the-art theory. As this study is performed close to C-K-threshold and, therefore, far below the molecule's sigma-shape resonance, this surprisingly strong effect is not related to that resonance phenomenon.
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Affiliation(s)
- T Jahnke
- Institut für Kernphysik, University of Frankfurt, August-Euler Strasse 6, D-60486 Frankfurt, Germany.
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48
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Knapp A, Kheifets A, Bray I, Weber T, Landers AL, Schössler S, Jahnke T, Nickles J, Kammer S, Jagutzki O, Schmidt LPH, Osipov T, Rösch J, Prior MH, Schmidt-Böcking H, Cocke CL, Dörner R. Mechanisms of photo double ionization of helium by 530 eV photons. Phys Rev Lett 2002; 89:033004. [PMID: 12144390 DOI: 10.1103/physrevlett.89.033004] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2001] [Indexed: 05/23/2023]
Abstract
We have measured fully differential cross sections for photo double ionization of helium 450 eV above the threshold. We have found an extremely asymmetric energy sharing between the photoelectrons and an angular asymmetry parameter beta approximately 2 and beta approximately 0 for the fast and slow electrons, respectively. The electron angular distributions show a dominance of the shakeoff for 2 eV electrons and clear evidence of an inelastic electron-electron scattering at an electron energy of 30 eV. The data are in excellent agreement with convergent close-coupling calculations.
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Affiliation(s)
- A Knapp
- Institut für Kernphysik, Universität Frankfurt, August-Euler-Strasse 6, D-60486 Frankfurt, Germany
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