1
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Walmsley T, Unwin J, Allum F, Bari S, Boll R, Borne K, Brouard M, Bucksbaum P, Ekanayake N, Erk B, Forbes R, Howard AJ, Eng-Johnsson P, Lee JWL, Liu Z, Manschwetus B, Mason R, Passow C, Peschel J, Rivas D, Rolles D, Rörig A, Rouzée A, Vallance C, Ziaee F, Burt M. Characterizing the multi-dimensional reaction dynamics of dihalomethanes using XUV-induced Coulomb explosion imaging. J Chem Phys 2023; 159:144302. [PMID: 37823458 DOI: 10.1063/5.0172749] [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] [Received: 08/18/2023] [Accepted: 09/27/2023] [Indexed: 10/13/2023] Open
Abstract
Site-selective probing of iodine 4d orbitals at 13.1 nm was used to characterize the photolysis of CH2I2 and CH2BrI initiated at 202.5 nm. Time-dependent fragment ion momenta were recorded using Coulomb explosion imaging mass spectrometry and used to determine the structural dynamics of the dissociating molecules. Correlations between these fragment momenta, as well as the onset times of electron transfer reactions between them, indicate that each molecule can undergo neutral three-body photolysis. For CH2I2, the structural evolution of the neutral molecule was simultaneously characterized along the C-I and I-C-I coordinates, demonstrating the sensitivity of these measurements to nuclear motion along multiple degrees of freedom.
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Affiliation(s)
- T Walmsley
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Oxford OX1 3TA, United Kingdom
| | - J Unwin
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Oxford OX1 3TA, United Kingdom
| | - F Allum
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Oxford OX1 3TA, United Kingdom
| | - S Bari
- Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany
| | - R Boll
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - K Borne
- J. R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, Kansas 66506, USA
| | - M Brouard
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Oxford OX1 3TA, United Kingdom
| | - P Bucksbaum
- Stanford PULSE Institute, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - N Ekanayake
- Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany
| | - B Erk
- Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany
| | - R Forbes
- Stanford PULSE Institute, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - A J Howard
- Stanford PULSE Institute, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - P Eng-Johnsson
- Department of Physics, Lund University, 22100 Lund, Sweden
| | - J W L Lee
- Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany
| | - Z Liu
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Oxford OX1 3TA, United Kingdom
| | - B Manschwetus
- Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany
| | - R Mason
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Oxford OX1 3TA, United Kingdom
| | - C Passow
- Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany
| | - J Peschel
- Department of Physics, Lund University, 22100 Lund, Sweden
| | - D Rivas
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - D Rolles
- J. R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, Kansas 66506, USA
| | - A Rörig
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - A Rouzée
- Max-Born-Institute, Max-Born-Straße 2A, 12489 Berlin, Germany
| | - C Vallance
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Oxford OX1 3TA, United Kingdom
| | - F Ziaee
- J. R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, Kansas 66506, USA
| | - M Burt
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Oxford OX1 3TA, United Kingdom
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2
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Guillemin R, Inhester L, Ilchen M, Mazza T, Boll R, Weber T, Eckart S, Grychtol P, Rennhack N, Marchenko T, Velasquez N, Travnikova O, Ismail I, Niskanen J, Kukk E, Trinter F, Gisselbrecht M, Feifel R, Sansone G, Rolles D, Martins M, Meyer M, Simon M, Santra R, Pfeifer T, Jahnke T, Piancastelli MN. Isotope effects in dynamics of water isotopologues induced by core ionization at an x-ray free-electron laser. Struct Dyn 2023; 10:054302. [PMID: 37799711 PMCID: PMC10550338 DOI: 10.1063/4.0000197] [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] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 09/05/2023] [Indexed: 10/07/2023]
Abstract
Dynamical response of water exposed to x-rays is of utmost importance in a wealth of science areas. We exposed isolated water isotopologues to short x-ray pulses from a free-electron laser and detected momenta of all produced ions in coincidence. By combining experimental results and theoretical modeling, we identify significant structural dynamics with characteristic isotope effects in H2O2+, D2O2+, and HDO2+, such as asymmetric bond elongation and bond-angle opening, leading to two-body or three-body fragmentation on a timescale of a few femtoseconds. A method to disentangle the sequences of events taking place upon the consecutive absorption of two x-ray photons is described. The obtained deep look into structural properties and dynamics of dissociating water isotopologues provides essential insights into the underlying mechanisms.
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Affiliation(s)
- R. Guillemin
- Sorbonne Université, CNRS, Laboratoire de Chimie Physique-Matière et Rayonnement, LCPMR, 75005 Paris, France
| | - L. Inhester
- Center for Free-Electron Laser Science CFEL, Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany
| | | | - T. Mazza
- European XFEL, 22869 Schenefeld, Germany
| | - R. Boll
- European XFEL, 22869 Schenefeld, Germany
| | - Th. Weber
- Lawrence Berkeley National Laboratory, Chemical Sciences, Berkeley, California 94720, USA
| | - S. Eckart
- Institut für Kernphysik, Goethe-Universität, 60438 Frankfurt am Main, Germany
| | | | | | - T. Marchenko
- Sorbonne Université, CNRS, Laboratoire de Chimie Physique-Matière et Rayonnement, LCPMR, 75005 Paris, France
| | - N. Velasquez
- Sorbonne Université, CNRS, Laboratoire de Chimie Physique-Matière et Rayonnement, LCPMR, 75005 Paris, France
| | - O. Travnikova
- Sorbonne Université, CNRS, Laboratoire de Chimie Physique-Matière et Rayonnement, LCPMR, 75005 Paris, France
| | - I. Ismail
- Sorbonne Université, CNRS, Laboratoire de Chimie Physique-Matière et Rayonnement, LCPMR, 75005 Paris, France
| | - J. Niskanen
- Department of Physics and Astronomy, University of Turku, 20014 Turku, Finland
| | - E. Kukk
- Department of Physics and Astronomy, University of Turku, 20014 Turku, Finland
| | | | | | - R. Feifel
- Department of Physics, University of Gothenburg, 412 96 Gothenburg, Sweden
| | - G. Sansone
- Physikalisches Institut, Universität Freiburg, 79104 Freiburg, Germany
| | - D. Rolles
- J. R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, Kansas 66506, USA
| | - M. Martins
- Institut für Experimentalphysik, Universität Hamburg, 22761 Hamburg, Germany
| | - M. Meyer
- European XFEL, 22869 Schenefeld, Germany
| | - M. Simon
- Sorbonne Université, CNRS, Laboratoire de Chimie Physique-Matière et Rayonnement, LCPMR, 75005 Paris, France
| | | | - T. Pfeifer
- Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany
| | - T. Jahnke
- Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany
| | - M. N. Piancastelli
- Sorbonne Université, CNRS, Laboratoire de Chimie Physique-Matière et Rayonnement, LCPMR, 75005 Paris, France
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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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Lee JWL, Tikhonov DS, Chopra P, Maclot S, Steber AL, Gruet S, Allum F, Boll R, Cheng X, Düsterer S, Erk B, Garg D, He L, Heathcote D, Johny M, Kazemi MM, Köckert H, Lahl J, Lemmens AK, Loru D, Mason R, Müller E, Mullins T, Olshin P, Passow C, Peschel J, Ramm D, Rompotis D, Schirmel N, Trippel S, Wiese J, Ziaee F, Bari S, Burt M, Küpper J, Rijs AM, Rolles D, Techert S, Eng-Johnsson P, Brouard M, Vallance C, Manschwetus B, Schnell M. Time-resolved relaxation and fragmentation of polycyclic aromatic hydrocarbons investigated in the ultrafast XUV-IR regime. Nat Commun 2021; 12:6107. [PMID: 34671016 PMCID: PMC8528970 DOI: 10.1038/s41467-021-26193-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 09/17/2021] [Indexed: 11/18/2022] Open
Abstract
Polycyclic aromatic hydrocarbons (PAHs) play an important role in interstellar chemistry and are subject to high energy photons that can induce excitation, ionization, and fragmentation. Previous studies have demonstrated electronic relaxation of parent PAH monocations over 10-100 femtoseconds as a result of beyond-Born-Oppenheimer coupling between the electronic and nuclear dynamics. Here, we investigate three PAH molecules: fluorene, phenanthrene, and pyrene, using ultrafast XUV and IR laser pulses. Simultaneous measurements of the ion yields, ion momenta, and electron momenta as a function of laser pulse delay allow a detailed insight into the various molecular processes. We report relaxation times for the electronically excited PAH*, PAH+* and PAH2+* states, and show the time-dependent conversion between fragmentation pathways. Additionally, using recoil-frame covariance analysis between ion images, we demonstrate that the dissociation of the PAH2+ ions favors reaction pathways involving two-body breakup and/or loss of neutral fragments totaling an even number of carbon atoms.
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Affiliation(s)
- J. W. L. Lee
- grid.7683.a0000 0004 0492 0453Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany ,grid.4991.50000 0004 1936 8948The Chemistry Research Laboratory, University of Oxford, Oxford, United Kingdom
| | - D. S. Tikhonov
- grid.7683.a0000 0004 0492 0453Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany ,grid.9764.c0000 0001 2153 9986Institute of Physical Chemistry, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
| | - P. Chopra
- grid.7683.a0000 0004 0492 0453Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany ,grid.9764.c0000 0001 2153 9986Institute of Physical Chemistry, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
| | - S. Maclot
- grid.4514.40000 0001 0930 2361Department of Physics, Lund University, Lund, Sweden ,grid.8761.80000 0000 9919 9582Physics Department, University of Gothenburg, Gothenburg, Sweden
| | - A. L. Steber
- grid.7683.a0000 0004 0492 0453Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany ,grid.9764.c0000 0001 2153 9986Institute of Physical Chemistry, Christian-Albrechts-Universität zu Kiel, Kiel, Germany ,grid.9026.d0000 0001 2287 2617Center for Ultrafast Imaging, Universität Hamburg, Hamburg, Germany
| | - S. Gruet
- grid.7683.a0000 0004 0492 0453Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - F. Allum
- grid.4991.50000 0004 1936 8948The Chemistry Research Laboratory, University of Oxford, Oxford, United Kingdom
| | - R. Boll
- grid.434729.f0000 0004 0590 2900European XFEL, Schenefeld, Germany
| | - X. Cheng
- grid.7683.a0000 0004 0492 0453Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - S. Düsterer
- grid.7683.a0000 0004 0492 0453Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - B. Erk
- grid.7683.a0000 0004 0492 0453Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - D. Garg
- grid.7683.a0000 0004 0492 0453Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany ,grid.9026.d0000 0001 2287 2617Department of Physics, Universität Hamburg, Hamburg, Germany
| | - L. He
- grid.7683.a0000 0004 0492 0453Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - D. Heathcote
- grid.4991.50000 0004 1936 8948The Chemistry Research Laboratory, University of Oxford, Oxford, United Kingdom
| | - M. Johny
- grid.7683.a0000 0004 0492 0453Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - M. M. Kazemi
- grid.7683.a0000 0004 0492 0453Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - H. Köckert
- grid.4991.50000 0004 1936 8948The Chemistry Research Laboratory, University of Oxford, Oxford, United Kingdom
| | - J. Lahl
- grid.4514.40000 0001 0930 2361Department of Physics, Lund University, Lund, Sweden
| | - A. K. Lemmens
- grid.5590.90000000122931605Radboud University, FELIX Laboratory, Nijmegen, The Netherlands ,grid.7177.60000000084992262Van’t Hoff Institute for Molecular Sciences, University of Amsterdam, Amsterdam, The Netherlands
| | - D. Loru
- grid.7683.a0000 0004 0492 0453Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany ,grid.9764.c0000 0001 2153 9986Institute of Physical Chemistry, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
| | - R. Mason
- grid.4991.50000 0004 1936 8948The Chemistry Research Laboratory, University of Oxford, Oxford, United Kingdom
| | - E. Müller
- grid.7683.a0000 0004 0492 0453Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - T. Mullins
- grid.7683.a0000 0004 0492 0453Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - P. Olshin
- grid.15447.330000 0001 2289 6897Saint Petersburg State University, Saint Petersburg, Russia
| | - C. Passow
- grid.7683.a0000 0004 0492 0453Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - J. Peschel
- grid.4514.40000 0001 0930 2361Department of Physics, Lund University, Lund, Sweden
| | - D. Ramm
- grid.7683.a0000 0004 0492 0453Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - D. Rompotis
- grid.7683.a0000 0004 0492 0453Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany ,grid.434729.f0000 0004 0590 2900European XFEL, Schenefeld, Germany
| | - N. Schirmel
- grid.7683.a0000 0004 0492 0453Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - S. Trippel
- grid.9026.d0000 0001 2287 2617Center for Ultrafast Imaging, Universität Hamburg, Hamburg, Germany ,grid.7683.a0000 0004 0492 0453Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - J. Wiese
- grid.7683.a0000 0004 0492 0453Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany ,grid.9026.d0000 0001 2287 2617Department of Chemistry, Universität Hamburg, Hamburg, Germany
| | - F. Ziaee
- grid.36567.310000 0001 0737 1259J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, KS USA
| | - S. Bari
- grid.7683.a0000 0004 0492 0453Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - M. Burt
- grid.4991.50000 0004 1936 8948The Chemistry Research Laboratory, University of Oxford, Oxford, United Kingdom
| | - J. Küpper
- grid.9026.d0000 0001 2287 2617Center for Ultrafast Imaging, Universität Hamburg, Hamburg, Germany ,grid.9026.d0000 0001 2287 2617Department of Physics, Universität Hamburg, Hamburg, Germany ,grid.7683.a0000 0004 0492 0453Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany ,grid.9026.d0000 0001 2287 2617Department of Chemistry, Universität Hamburg, Hamburg, Germany
| | - A. M. Rijs
- grid.5590.90000000122931605Radboud University, FELIX Laboratory, Nijmegen, The Netherlands ,grid.12380.380000 0004 1754 9227Division of BioAnalytical Chemistry, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - D. Rolles
- grid.36567.310000 0001 0737 1259J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, KS USA
| | - S. Techert
- grid.7683.a0000 0004 0492 0453Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany ,grid.7450.60000 0001 2364 4210Institute for X-Ray Physics, Georg-August-Universität, Göttingen, Germany
| | - P. Eng-Johnsson
- grid.4514.40000 0001 0930 2361Department of Physics, Lund University, Lund, Sweden
| | - M. Brouard
- grid.4991.50000 0004 1936 8948The Chemistry Research Laboratory, University of Oxford, Oxford, United Kingdom
| | - C. Vallance
- grid.4991.50000 0004 1936 8948The Chemistry Research Laboratory, University of Oxford, Oxford, United Kingdom
| | - B. Manschwetus
- grid.7683.a0000 0004 0492 0453Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - M. Schnell
- grid.7683.a0000 0004 0492 0453Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany ,grid.9764.c0000 0001 2153 9986Institute of Physical Chemistry, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
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5
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Li X, Inhester L, Robatjazi SJ, Erk B, Boll R, Hanasaki K, Toyota K, Hao Y, Bomme C, Rudek B, Foucar L, Southworth SH, Lehmann CS, Kraessig B, Marchenko T, Simon M, Ueda K, Ferguson KR, Bucher M, Gorkhover T, Carron S, Alonso-Mori R, Koglin JE, Correa J, Williams GJ, Boutet S, Young L, Bostedt C, Son SK, Santra R, Rolles D, Rudenko A. Pulse Energy and Pulse Duration Effects in the Ionization and Fragmentation of Iodomethane by Ultraintense Hard X Rays. Phys Rev Lett 2021; 127:093202. [PMID: 34506178 DOI: 10.1103/physrevlett.127.093202] [Citation(s) in RCA: 2] [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: 06/20/2019] [Revised: 01/24/2021] [Accepted: 07/02/2021] [Indexed: 06/13/2023]
Abstract
The interaction of intense femtosecond x-ray pulses with molecules sensitively depends on the interplay between multiple photoabsorptions, Auger decay, charge rearrangement, and nuclear motion. Here, we report on a combined experimental and theoretical study of the ionization and fragmentation of iodomethane (CH_{3}I) by ultraintense (∼10^{19} W/cm^{2}) x-ray pulses at 8.3 keV, demonstrating how these dynamics depend on the x-ray pulse energy and duration. We show that the timing of multiple ionization steps leading to a particular reaction product and, thus, the product's final kinetic energy, is determined by the pulse duration rather than the pulse energy or intensity. While the overall degree of ionization is mainly defined by the pulse energy, our measurement reveals that the yield of the fragments with the highest charge states is enhanced for short pulse durations, in contrast to earlier observations for atoms and small molecules in the soft x-ray domain. We attribute this effect to a decreased charge transfer efficiency at larger internuclear separations, which are reached during longer pulses.
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Affiliation(s)
- X Li
- J. R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, Kansas, USA
| | - L Inhester
- Center for Free-Electron Laser Science, DESY, Hamburg, Germany
- The Hamburg Centre for Ultrafast Imaging, Hamburg, Germany
| | - S J Robatjazi
- J. R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, Kansas, USA
| | - B Erk
- Deutsches Elektronen-Synchrotron (DESY), Hamburg, Germany
| | - R Boll
- Max Planck Institute for Nuclear Physics, Heidelberg, Germany
- European XFEL, Schenefeld, Germany
| | - K Hanasaki
- Center for Free-Electron Laser Science, DESY, Hamburg, Germany
- The Hamburg Centre for Ultrafast Imaging, Hamburg, Germany
| | - K Toyota
- Center for Free-Electron Laser Science, DESY, Hamburg, Germany
- The Hamburg Centre for Ultrafast Imaging, Hamburg, Germany
| | - Y Hao
- Center for Free-Electron Laser Science, DESY, Hamburg, Germany
- The Hamburg Centre for Ultrafast Imaging, Hamburg, Germany
- Institute of Theoretical Physics and Department of Physics, University of Science and Technology Beijing, Beijing, People's Republic of China
| | - C Bomme
- Deutsches Elektronen-Synchrotron (DESY), Hamburg, Germany
| | - B Rudek
- Physikalisch-Technische Bundesanstalt (PTB), Braunschweig, Germany
| | - L Foucar
- Max Planck Institute for Medical Research, Heidelberg, Germany
| | - S H Southworth
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois, USA
| | - C S Lehmann
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois, USA
- Fachbereich Chemie, Philipps-Universität Marburg, Marburg, Germany
| | - B Kraessig
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois, USA
| | - T Marchenko
- Sorbonne Université, CNRS, Laboratoire de Chimie Physique-Matière et Rayonnement, LCPMR, Paris, France
| | - M Simon
- Sorbonne Université, CNRS, Laboratoire de Chimie Physique-Matière et Rayonnement, LCPMR, Paris, France
| | - K Ueda
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai, Japan
| | - K R Ferguson
- LCLS, SLAC National Accelerator Laboratory, Menlo Park, California, USA
| | - M Bucher
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois, USA
- LCLS, SLAC National Accelerator Laboratory, Menlo Park, California, USA
| | - T Gorkhover
- LCLS, SLAC National Accelerator Laboratory, Menlo Park, California, USA
- Institut für Optik und Atomare Physik, Technische Universität Berlin, Berlin, Germany
| | - S Carron
- LCLS, SLAC National Accelerator Laboratory, Menlo Park, California, USA
| | - R Alonso-Mori
- LCLS, SLAC National Accelerator Laboratory, Menlo Park, California, USA
| | - J E Koglin
- LCLS, SLAC National Accelerator Laboratory, Menlo Park, California, USA
| | - J Correa
- Center for Free-Electron Laser Science, DESY, Hamburg, Germany
- Deutsches Elektronen-Synchrotron (DESY), Hamburg, Germany
| | - G J Williams
- LCLS, SLAC National Accelerator Laboratory, Menlo Park, California, USA
- NSLS-II, Brookhaven National Laboratory, Upton New York, USA
| | - S Boutet
- LCLS, SLAC National Accelerator Laboratory, Menlo Park, California, USA
| | - L Young
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois, USA
- Department of Physics and James Franck Institute, The University of Chicago, Chicago, Illinois, USA
| | - C Bostedt
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois, USA
- Paul Scherrer Institut, Villigen-PSI, Villigen, Switzerland
- Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - S-K Son
- Center for Free-Electron Laser Science, DESY, Hamburg, Germany
- The Hamburg Centre for Ultrafast Imaging, Hamburg, Germany
| | - R Santra
- Center for Free-Electron Laser Science, DESY, Hamburg, Germany
- The Hamburg Centre for Ultrafast Imaging, Hamburg, Germany
- Department of Physics, Universität Hamburg, Hamburg, Germany
| | - D Rolles
- J. R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, Kansas, USA
- Deutsches Elektronen-Synchrotron (DESY), Hamburg, Germany
| | - A Rudenko
- J. R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, Kansas, USA
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6
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Mercadier L, Benediktovitch A, Weninger C, Blessenohl MA, Bernitt S, Bekker H, Dobrodey S, Sanchez-Gonzalez A, Erk B, Bomme C, Boll R, Yin Z, Majety VP, Steinbrügge R, Khalal MA, Penent F, Palaudoux J, Lablanquie P, Rudenko A, Rolles D, Crespo López-Urrutia JR, Rohringer N. Evidence of Extreme Ultraviolet Superfluorescence in Xenon. Phys Rev Lett 2019; 123:023201. [PMID: 31386513 DOI: 10.1103/physrevlett.123.023201] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 05/22/2019] [Indexed: 06/10/2023]
Abstract
We present a comprehensive experimental and theoretical study on superfluorescence in the extreme ultraviolet wavelength regime. Focusing a free-electron laser pulse in a cell filled with Xe gas, the medium is quasi-instantaneously population inverted by 4d-shell ionization on the giant resonance followed by Auger decay. On the timescale of ∼10 ps to ∼100 ps (depending on parameters) a macroscopic polarization builds up in the medium, resulting in superfluorescent emission of several Xe lines in the forward direction. As the number of emitters in the system is increased by either raising the pressure or the pump-pulse energy, the emission yield grows exponentially over four orders of magnitude and reaches saturation. With increasing yield, we observe line broadening, a manifestation of superfluorescence in the spectral domain. Our novel theoretical approach, based on a full quantum treatment of the atomic system and the irradiated field, shows quantitative agreement with the experiment and supports our interpretation.
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Affiliation(s)
- L Mercadier
- Max Planck Institute for the Structure and Dynamics of Matter, 22761 Hamburg, Germany
- European XFEL, 22869 Schenefeld, Germany
| | | | - C Weninger
- Max Planck Institute for the Structure and Dynamics of Matter, 22761 Hamburg, Germany
| | - M A Blessenohl
- Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany
| | - S Bernitt
- Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany
- Institut für Optik und Quantenelektronik, Friedrich-Schiller-Universität Jena, 07743 Jena, Germany
| | - H Bekker
- Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany
| | - S Dobrodey
- Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany
| | - A Sanchez-Gonzalez
- Department of Physics, Imperial College London, London SW7 2AZ, United Kingdom
| | - B Erk
- Deutsches Elektronen-Synchrotron (DESY), 22607 Hamburg, Germany
| | - C Bomme
- Deutsches Elektronen-Synchrotron (DESY), 22607 Hamburg, Germany
| | - R Boll
- Deutsches Elektronen-Synchrotron (DESY), 22607 Hamburg, Germany
| | - Z Yin
- Deutsches Elektronen-Synchrotron (DESY), 22607 Hamburg, Germany
- Max Planck für biophysikalische Chemie, 37077 Göttingen, Germany
| | - V P Majety
- Max Planck Institute for the Structure and Dynamics of Matter, 22761 Hamburg, Germany
| | - R Steinbrügge
- Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany
| | - M A Khalal
- Laboratoire de Chimie Physique-Matière et Rayonnement, Université Pierre et Marie Curie, F-75231 Paris Cedex 05, France
| | - F Penent
- Laboratoire de Chimie Physique-Matière et Rayonnement, Université Pierre et Marie Curie, F-75231 Paris Cedex 05, France
| | - J Palaudoux
- Laboratoire de Chimie Physique-Matière et Rayonnement, Université Pierre et Marie Curie, F-75231 Paris Cedex 05, France
| | - P Lablanquie
- Laboratoire de Chimie Physique-Matière et Rayonnement, Université Pierre et Marie Curie, F-75231 Paris Cedex 05, France
| | - A Rudenko
- J. R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, Kansas 66506, USA
| | - D Rolles
- Deutsches Elektronen-Synchrotron (DESY), 22607 Hamburg, Germany
- J. R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, Kansas 66506, USA
| | | | - N Rohringer
- Max Planck Institute for the Structure and Dynamics of Matter, 22761 Hamburg, Germany
- Deutsches Elektronen-Synchrotron (DESY), 22607 Hamburg, Germany
- Department of Physics, Universität Hamburg, 20355 Hamburg, Germany
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7
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Malakar Y, Pearson WL, Zohrabi M, Kaderiya B, P. KR, Ziaee F, Xue S, Le AT, Ben-Itzhak I, Rolles D, Rudenko A. Time-resolved imaging of bound and dissociating nuclear wave packets in strong-field ionized iodomethane. Phys Chem Chem Phys 2019; 21:14090-14102. [DOI: 10.1039/c8cp07032f] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the results of a time-resolved coincident ion momentum imaging experiment probing nuclear wave packet dynamics in the strong-field ionization and dissociation of iodomethane (CH3I).
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8
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Rajput J, Severt T, Berry B, Jochim B, Feizollah P, Kaderiya B, Zohrabi M, Ablikim U, Ziaee F, Raju P K, Rolles D, Rudenko A, Carnes KD, Esry BD, Ben-Itzhak I. Native Frames: Disentangling Sequential from Concerted Three-Body Fragmentation. Phys Rev Lett 2018; 120:103001. [PMID: 29570318 DOI: 10.1103/physrevlett.120.103001] [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] [Received: 11/18/2017] [Indexed: 06/08/2023]
Abstract
A key question concerning the three-body fragmentation of polyatomic molecules is the distinction of sequential and concerted mechanisms, i.e., the stepwise or simultaneous cleavage of bonds. Using laser-driven fragmentation of OCS into O^{+}+C^{+}+S^{+} and employing coincidence momentum imaging, we demonstrate a novel method that enables the clear separation of sequential and concerted breakup. The separation is accomplished by analyzing the three-body fragmentation in the native frame associated with each step and taking advantage of the rotation of the intermediate molecular fragment, CO^{2+} or CS^{2+}, before its unimolecular dissociation. This native-frame method works for any projectile (electrons, ions, or photons), provides details on each step of the sequential breakup, and enables the retrieval of the relevant spectra for sequential and concerted breakup separately. Specifically, this allows the determination of the branching ratio of all these processes in OCS^{3+} breakup. Moreover, we find that the first step of sequential breakup is tightly aligned along the laser polarization and identify the likely electronic states of the intermediate dication that undergo unimolecular dissociation in the second step. Finally, the separated concerted breakup spectra show clearly that the central carbon atom is preferentially ejected perpendicular to the laser field.
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Affiliation(s)
- Jyoti Rajput
- J. R. Macdonald Laboratory, Physics Department, Kansas State University, Manhattan, Kansas 66506, USA
| | - T Severt
- J. R. Macdonald Laboratory, Physics Department, Kansas State University, Manhattan, Kansas 66506, USA
| | - Ben Berry
- J. R. Macdonald Laboratory, Physics Department, Kansas State University, Manhattan, Kansas 66506, USA
| | - Bethany Jochim
- J. R. Macdonald Laboratory, Physics Department, Kansas State University, Manhattan, Kansas 66506, USA
| | - Peyman Feizollah
- J. R. Macdonald Laboratory, Physics Department, Kansas State University, Manhattan, Kansas 66506, USA
| | - Balram Kaderiya
- J. R. Macdonald Laboratory, Physics Department, Kansas State University, Manhattan, Kansas 66506, USA
| | - M Zohrabi
- J. R. Macdonald Laboratory, Physics Department, Kansas State University, Manhattan, Kansas 66506, USA
| | - U Ablikim
- J. R. Macdonald Laboratory, Physics Department, Kansas State University, Manhattan, Kansas 66506, USA
| | - Farzaneh Ziaee
- J. R. Macdonald Laboratory, Physics Department, Kansas State University, Manhattan, Kansas 66506, USA
| | - Kanaka Raju P
- J. R. Macdonald Laboratory, Physics Department, Kansas State University, Manhattan, Kansas 66506, USA
| | - D Rolles
- J. R. Macdonald Laboratory, Physics Department, Kansas State University, Manhattan, Kansas 66506, USA
| | - A Rudenko
- J. R. Macdonald Laboratory, Physics Department, Kansas State University, Manhattan, Kansas 66506, USA
| | - K D Carnes
- J. R. Macdonald Laboratory, Physics Department, Kansas State University, Manhattan, Kansas 66506, USA
| | - B D Esry
- J. R. Macdonald Laboratory, Physics Department, Kansas State University, Manhattan, Kansas 66506, USA
| | - I Ben-Itzhak
- J. R. Macdonald Laboratory, Physics Department, Kansas State University, Manhattan, Kansas 66506, USA
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9
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Picón A, Lehmann CS, Bostedt C, Rudenko A, Marinelli A, Osipov T, Rolles D, Berrah N, Bomme C, Bucher M, Doumy G, Erk B, Ferguson KR, Gorkhover T, Ho PJ, Kanter EP, Krässig B, Krzywinski J, Lutman AA, March AM, Moonshiram D, Ray D, Young L, Pratt ST, Southworth SH. Hetero-site-specific X-ray pump-probe spectroscopy for femtosecond intramolecular dynamics. Nat Commun 2016; 7:11652. [PMID: 27212390 PMCID: PMC4879250 DOI: 10.1038/ncomms11652] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [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: 09/22/2015] [Accepted: 04/18/2016] [Indexed: 11/09/2022] Open
Abstract
New capabilities at X-ray free-electron laser facilities allow the generation of two-colour femtosecond X-ray pulses, opening the possibility of performing ultrafast studies of X-ray-induced phenomena. Particularly, the experimental realization of hetero-site-specific X-ray-pump/X-ray-probe spectroscopy is of special interest, in which an X-ray pump pulse is absorbed at one site within a molecule and an X-ray probe pulse follows the X-ray-induced dynamics at another site within the same molecule. Here we show experimental evidence of a hetero-site pump-probe signal. By using two-colour 10-fs X-ray pulses, we are able to observe the femtosecond time dependence for the formation of F ions during the fragmentation of XeF2 molecules following X-ray absorption at the Xe site.
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Affiliation(s)
- A. Picón
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - C. S. Lehmann
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - C. Bostedt
- Argonne National Laboratory, Argonne, Illinois 60439, USA
- Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, USA
| | - A. Rudenko
- J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, Kansas 66506, USA
| | - A. Marinelli
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - T. Osipov
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - D. Rolles
- J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, Kansas 66506, USA
- Deutsches Elektronen-Synchrotron (DESY), Hamburg 22607, Germany
| | - N. Berrah
- Department of Physics, University of Connecticut, Storrs, Connecticut 06269, USA
| | - C. Bomme
- Deutsches Elektronen-Synchrotron (DESY), Hamburg 22607, Germany
| | - M. Bucher
- Argonne National Laboratory, Argonne, Illinois 60439, USA
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - G. Doumy
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - B. Erk
- Deutsches Elektronen-Synchrotron (DESY), Hamburg 22607, Germany
| | - K. R. Ferguson
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - T. Gorkhover
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - P. J. Ho
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - E. P. Kanter
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - B. Krässig
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - J. Krzywinski
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - A. A. Lutman
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - A. M. March
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - D. Moonshiram
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - D. Ray
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - L. Young
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - S. T. Pratt
- Argonne National Laboratory, Argonne, Illinois 60439, USA
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10
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Rohringer N, Kimberg V, Weninger C, Sanchez-Gonzalez A, Lutman A, Maxwell T, Bostedt C, Carron Monterro S, Lindahl AO, Ilchen M, Coffee RN, Bozek JD, Krzywinski J, Kierspel T, Mullins T, Küpper J, Erk B, Rolles D, Mücke OD, London RA, Purvis M, Ryan D, Rocca JJ, Feifel R, Squibb R, Zhaunerchyk V, Såthe C, Agåker M, Mucke M, Nordgren J, Rubensson JE. Stimulated X-Ray Raman Scattering with Free-Electron Laser Sources. ACTA ACUST UNITED AC 2015. [DOI: 10.1007/978-3-319-19521-6_26] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
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11
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Stern S, Holmegaard L, Filsinger F, Rouzée A, Rudenko A, Johnsson P, Martin AV, Barty A, Bostedt C, Bozek J, Coffee R, Epp S, Erk B, Foucar L, Hartmann R, Kimmel N, Kühnel KU, Maurer J, Messerschmidt M, Rudek B, Starodub D, Thøgersen J, Weidenspointner G, White TA, Stapelfeldt H, Rolles D, Chapman HN, Küpper J. Toward atomic resolution diffractive imaging of isolated molecules with X-ray free-electron lasers. Faraday Discuss 2015; 171:393-418. [PMID: 25415561 DOI: 10.1039/c4fd00028e] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
We give a detailed account of the theoretical analysis and the experimental results of an X-ray-diffraction experiment on quantum-state selected and strongly laser-aligned gas-phase ensembles of the prototypical large asymmetric rotor molecule 2,5-diiodobenzonitrile, performed at the Linac Coherent Light Source [Phys. Rev. Lett.112, 083002 (2014)]. This experiment is the first step toward coherent diffractive imaging of structures and structural dynamics of isolated molecules at atomic resolution, i.e., picometers and femtoseconds, using X-ray free-electron lasers.
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Affiliation(s)
- S Stern
- Center for Free-Electron Laser Science (CFEL), Deutsches Elektronen-Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany.
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12
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Schnorr K, Senftleben A, Kurka M, Rudenko A, Foucar L, Schmid G, Broska A, Pfeifer T, Meyer K, Anielski D, Boll R, Rolles D, Kübel M, Kling MF, Jiang YH, Mondal S, Tachibana T, Ueda K, Marchenko T, Simon M, Brenner G, Treusch R, Scheit S, Averbukh V, Ullrich J, Schröter CD, Moshammer R. Time-resolved measurement of interatomic coulombic decay in Ne2. Phys Rev Lett 2013; 111:093402. [PMID: 24033032 DOI: 10.1103/physrevlett.111.093402] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2013] [Indexed: 06/02/2023]
Abstract
The lifetime of interatomic Coulombic decay (ICD) [L. S. Cederbaum et al., Phys. Rev. Lett. 79, 4778 (1997)] in Ne2 is determined via an extreme ultraviolet pump-probe experiment at the Free-Electron Laser in Hamburg. The pump pulse creates a 2s inner-shell vacancy in one of the two Ne atoms, whereupon the ionized dimer undergoes ICD resulting in a repulsive Ne+(2p(-1))-Ne+(2p(-1)) state, which is probed with a second pulse, removing a further electron. The yield of coincident Ne+-Ne2+ pairs is recorded as a function of the pump-probe delay, allowing us to deduce the ICD lifetime of the Ne2(+)(2s(-1)) state to be (150±50) fs, in agreement with quantum calculations.
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Affiliation(s)
- K Schnorr
- Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany
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13
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Starodub D, Aquila A, Bajt S, Barthelmess M, Barty A, Bostedt C, Bozek JD, Coppola N, Doak RB, Epp SW, Erk B, Foucar L, Gumprecht L, Hampton CY, Hartmann A, Hartmann R, Holl P, Kassemeyer S, Kimmel N, Laksmono H, Liang M, Loh ND, Lomb L, Martin AV, Nass K, Reich C, Rolles D, Rudek B, Rudenko A, Schulz J, Shoeman RL, Sierra RG, Soltau H, Steinbrener J, Stellato F, Stern S, Weidenspointner G, Frank M, Ullrich J, Strüder L, Schlichting I, Chapman HN, Spence JCH, Bogan MJ. Single-particle structure determination by correlations of snapshot X-ray diffraction patterns. Nat Commun 2013; 3:1276. [PMID: 23232406 DOI: 10.1038/ncomms2288] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2012] [Accepted: 11/14/2012] [Indexed: 11/09/2022] Open
Abstract
Diffractive imaging with free-electron lasers allows structure determination from ensembles of weakly scattering identical nanoparticles. The ultra-short, ultra-bright X-ray pulses provide snapshots of the randomly oriented particles frozen in time, and terminate before the onset of structural damage. As signal strength diminishes for small particles, the synthesis of a three-dimensional diffraction volume requires simultaneous involvement of all data. Here we report the first application of a three-dimensional spatial frequency correlation analysis to carry out this synthesis from noisy single-particle femtosecond X-ray diffraction patterns of nearly identical samples in random and unknown orientations, collected at the Linac Coherent Light Source. Our demonstration uses unsupported test particles created via aerosol self-assembly, and composed of two polystyrene spheres of equal diameter. The correlation analysis avoids the need for orientation determination entirely. This method may be applied to the structural determination of biological macromolecules in solution.
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Affiliation(s)
- D Starodub
- PULSE Institute, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA.
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14
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Graves CE, Reid AH, Wang T, Wu B, de Jong S, Vahaplar K, Radu I, Bernstein DP, Messerschmidt M, Müller L, Coffee R, Bionta M, Epp SW, Hartmann R, Kimmel N, Hauser G, Hartmann A, Holl P, Gorke H, Mentink JH, Tsukamoto A, Fognini A, Turner JJ, Schlotter WF, Rolles D, Soltau H, Strüder L, Acremann Y, Kimel AV, Kirilyuk A, Rasing T, Stöhr J, Scherz AO, Dürr HA. Nanoscale spin reversal by non-local angular momentum transfer following ultrafast laser excitation in ferrimagnetic GdFeCo. Nat Mater 2013; 12:293-8. [PMID: 23503010 DOI: 10.1038/nmat3597] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2012] [Accepted: 02/07/2012] [Indexed: 05/19/2023]
Abstract
Ultrafast laser techniques have revealed extraordinary spin dynamics in magnetic materials that equilibrium descriptions of magnetism cannot explain. Particularly important for future applications is understanding non-equilibrium spin dynamics following laser excitation on the nanoscale, yet the limited spatial resolution of optical laser techniques has impeded such nanoscale studies. Here we present ultrafast diffraction experiments with an X-ray laser that probes the nanoscale spin dynamics following optical laser excitation in the ferrimagnetic alloy GdFeCo, which exhibits macroscopic all-optical switching. Our study reveals that GdFeCo displays nanoscale chemical and magnetic inhomogeneities that affect the spin dynamics. In particular, we observe Gd spin reversal in Gd-rich nanoregions within the first picosecond driven by the non-local transfer of angular momentum from larger adjacent Fe-rich nanoregions. These results suggest that a magnetic material's microstructure can be engineered to control transient laser-excited spins, potentially allowing faster (~ 1 ps) spin reversal than in present technologies.
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Affiliation(s)
- C E Graves
- Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
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15
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Erk B, Rolles D, Foucar L, Rudek B, Epp SW, Cryle M, Bostedt C, Schorb S, Bozek J, Rouzee A, Hundertmark A, Marchenko T, Simon M, Filsinger F, Christensen L, De S, Trippel S, Küpper J, Stapelfeldt H, Wada S, Ueda K, Swiggers M, Messerschmidt M, Schröter CD, Moshammer R, Schlichting I, Ullrich J, Rudenko A. Ultrafast charge rearrangement and nuclear dynamics upon inner-shell multiple ionization of small polyatomic molecules. Phys Rev Lett 2013; 110:053003. [PMID: 23414017 DOI: 10.1088/0953-4075/46/16/164031] [Citation(s) in RCA: 11] [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: 10/02/2012] [Indexed: 05/23/2023]
Abstract
Ionization and fragmentation of methylselenol (CH(3)SeH) molecules by intense (>10(17) W/cm(2)) 5 fs x-ray pulses (ħω=2 keV) are studied by coincident ion momentum spectroscopy. We contrast the measured charge state distribution with data on atomic Kr, determine kinetic energies of resulting ionic fragments, and compare them to the outcome of a Coulomb explosion model. We find signatures of ultrafast charge redistribution from the inner-shell ionized Se atom to its molecular partners, and observe significant displacement of the atomic constituents in the course of multiple ionization.
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Affiliation(s)
- B Erk
- Max Planck Advanced Study Group (ASG) at CFEL, 22761 Hamburg, Germany
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16
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Erk B, Rolles D, Foucar L, Rudek B, Epp SW, Cryle M, Bostedt C, Schorb S, Bozek J, Rouzee A, Hundertmark A, Marchenko T, Simon M, Filsinger F, Christensen L, De S, Trippel S, Küpper J, Stapelfeldt H, Wada S, Ueda K, Swiggers M, Messerschmidt M, Schröter CD, Moshammer R, Schlichting I, Ullrich J, Rudenko A. Ultrafast charge rearrangement and nuclear dynamics upon inner-shell multiple ionization of small polyatomic molecules. Phys Rev Lett 2013; 110:053003. [PMID: 23414017 DOI: 10.1103/physrevlett.110.053003] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2012] [Indexed: 05/11/2023]
Abstract
Ionization and fragmentation of methylselenol (CH(3)SeH) molecules by intense (>10(17) W/cm(2)) 5 fs x-ray pulses (ħω=2 keV) are studied by coincident ion momentum spectroscopy. We contrast the measured charge state distribution with data on atomic Kr, determine kinetic energies of resulting ionic fragments, and compare them to the outcome of a Coulomb explosion model. We find signatures of ultrafast charge redistribution from the inner-shell ionized Se atom to its molecular partners, and observe significant displacement of the atomic constituents in the course of multiple ionization.
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Affiliation(s)
- B Erk
- Max Planck Advanced Study Group (ASG) at CFEL, 22761 Hamburg, Germany
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17
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Loh ND, Hampton CY, Martin AV, Starodub D, Sierra RG, Barty A, Aquila A, Schulz J, Lomb L, Steinbrener J, Shoeman RL, Kassemeyer S, Bostedt C, Bozek J, Epp SW, Erk B, Hartmann R, Rolles D, Rudenko A, Rudek B, Foucar L, Kimmel N, Weidenspointner G, Hauser G, Holl P, Pedersoli E, Liang M, Hunter MS, Gumprecht L, Coppola N, Wunderer C, Graafsma H, Maia FRNC, Ekeberg T, Hantke M, Fleckenstein H, Hirsemann H, Nass K, White TA, Tobias HJ, Farquar GR, Benner WH, Hau-Riege SP, Reich C, Hartmann A, Soltau H, Marchesini S, Bajt S, Barthelmess M, Bucksbaum P, Hodgson KO, Strüder L, Ullrich J, Frank M, Schlichting I, Chapman HN, Bogan MJ. Erratum: Fractal morphology, imaging and mass spectrometry of single aerosol particles in flight. Nature 2012. [DOI: 10.1038/nature11426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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18
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Loh ND, Hampton CY, Martin AV, Starodub D, Sierra RG, Barty A, Aquila A, Schulz J, Lomb L, Steinbrener J, Shoeman RL, Kassemeyer S, Bostedt C, Bozek J, Epp SW, Erk B, Hartmann R, Rolles D, Rudenko A, Rudek B, Foucar L, Kimmel N, Weidenspointner G, Hauser G, Holl P, Pedersoli E, Liang M, Hunter MS, Hunter MM, Gumprecht L, Coppola N, Wunderer C, Graafsma H, Maia FRNC, Ekeberg T, Hantke M, Fleckenstein H, Hirsemann H, Nass K, White TA, Tobias HJ, Farquar GR, Benner WH, Hau-Riege SP, Reich C, Hartmann A, Soltau H, Marchesini S, Bajt S, Barthelmess M, Bucksbaum P, Hodgson KO, Strüder L, Ullrich J, Frank M, Schlichting I, Chapman HN, Bogan MJ. Fractal morphology, imaging and mass spectrometry of single aerosol particles in flight. Nature 2012; 486:513-7. [PMID: 22739316 DOI: 10.1038/nature11222] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2011] [Accepted: 05/09/2012] [Indexed: 11/09/2022]
Abstract
The morphology of micrometre-size particulate matter is of critical importance in fields ranging from toxicology to climate science, yet these properties are surprisingly difficult to measure in the particles' native environment. Electron microscopy requires collection of particles on a substrate; visible light scattering provides insufficient resolution; and X-ray synchrotron studies have been limited to ensembles of particles. Here we demonstrate an in situ method for imaging individual sub-micrometre particles to nanometre resolution in their native environment, using intense, coherent X-ray pulses from the Linac Coherent Light Source free-electron laser. We introduced individual aerosol particles into the pulsed X-ray beam, which is sufficiently intense that diffraction from individual particles can be measured for morphological analysis. At the same time, ion fragments ejected from the beam were analysed using mass spectrometry, to determine the composition of single aerosol particles. Our results show the extent of internal dilation symmetry of individual soot particles subject to non-equilibrium aggregation, and the surprisingly large variability in their fractal dimensions. More broadly, our methods can be extended to resolve both static and dynamic morphology of general ensembles of disordered particles. Such general morphology has implications in topics such as solvent accessibilities in proteins, vibrational energy transfer by the hydrodynamic interaction of amino acids, and large-scale production of nanoscale structures by flame synthesis.
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Affiliation(s)
- N D Loh
- PULSE Institute, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
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19
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Gorkhover T, Adolph M, Rupp D, Schorb S, Epp SW, Erk B, Foucar L, Hartmann R, Kimmel N, Kühnel KU, Rolles D, Rudek B, Rudenko A, Andritschke R, Aquila A, Bozek JD, Coppola N, Erke T, Filsinger F, Gorke H, Graafsma H, Gumprecht L, Hauser G, Herrmann S, Hirsemann H, Hömke A, Holl P, Kaiser C, Krasniqi F, Meyer JH, Matysek M, Messerschmidt M, Miessner D, Nilsson B, Pietschner D, Potdevin G, Reich C, Schaller G, Schmidt C, Schopper F, Schröter CD, Schulz J, Soltau H, Weidenspointner G, Schlichting I, Strüder L, Ullrich J, Möller T, Bostedt C. Nanoplasma dynamics of single large xenon clusters irradiated with superintense x-ray pulses from the linac coherent light source free-electron laser. Phys Rev Lett 2012; 108:245005. [PMID: 23004284 DOI: 10.1103/physrevlett.108.245005] [Citation(s) in RCA: 27] [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] [Received: 02/13/2012] [Indexed: 05/09/2023]
Abstract
The plasma dynamics of single mesoscopic Xe particles irradiated with intense femtosecond x-ray pulses exceeding 10(16) W/cm2 from the Linac Coherent Light Source free-electron laser are investigated. Simultaneous recording of diffraction patterns and ion spectra allows eliminating the influence of the laser focal volume intensity and particle size distribution. The data show that for clusters illuminated with intense x-ray pulses, highly charged ionization fragments in a narrow distribution are created and that the nanoplasma recombination is efficiently suppressed.
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Affiliation(s)
- T Gorkhover
- Institut für Optik und Atomare Physik, Technische Universität Berlin, Hardenbergstr. 36, 10623 Berlin, Germany
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20
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Martin AV, Loh ND, Hampton CY, Sierra RG, Wang F, Aquila A, Bajt S, Barthelmess M, Bostedt C, Bozek JD, Coppola N, Epp SW, Erk B, Fleckenstein H, Foucar L, Frank M, Graafsma H, Gumprecht L, Hartmann A, Hartmann R, Hauser G, Hirsemann H, Holl P, Kassemeyer S, Kimmel N, Liang M, Lomb L, Maia FRNC, Marchesini S, Nass K, Pedersoli E, Reich C, Rolles D, Rudek B, Rudenko A, Schulz J, Shoeman RL, Soltau H, Starodub D, Steinbrener J, Stellato F, Strüder L, Ullrich J, Weidenspointner G, White TA, Wunderer CB, Barty A, Schlichting I, Bogan MJ, Chapman HN. Femtosecond dark-field imaging with an X-ray free electron laser. Opt Express 2012; 20:13501-12. [PMID: 22714377 DOI: 10.1364/oe.20.013501] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
The emergence of femtosecond diffractive imaging with X-ray lasers has enabled pioneering structural studies of isolated particles, such as viruses, at nanometer length scales. However, the issue of missing low frequency data significantly limits the potential of X-ray lasers to reveal sub-nanometer details of micrometer-sized samples. We have developed a new technique of dark-field coherent diffractive imaging to simultaneously overcome the missing data issue and enable us to harness the unique contrast mechanisms available in dark-field microscopy. Images of airborne particulate matter (soot) up to two microns in length were obtained using single-shot diffraction patterns obtained at the Linac Coherent Light Source, four times the size of objects previously imaged in similar experiments. This technique opens the door to femtosecond diffractive imaging of a wide range of micrometer-sized materials that exhibit irreproducible complexity down to the nanoscale, including airborne particulate matter, small cells, bacteria and gold-labeled biological samples.
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Affiliation(s)
- A V Martin
- Center for Free-Electron Laser Science, DESY, Notkestrasse 85, 22607 Hamburg, Germany.
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21
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Hau-Riege SP, Graf A, Döppner T, London RA, Krzywinski J, Fortmann C, Glenzer SH, Frank M, Sokolowski-Tinten K, Messerschmidt M, Bostedt C, Schorb S, Bradley JA, Lutman A, Rolles D, Rudenko A, Rudek B. Ultrafast transitions from solid to liquid and plasma states of graphite induced by x-ray free-electron laser pulses. Phys Rev Lett 2012; 108:217402. [PMID: 23003301 DOI: 10.1103/physrevlett.108.217402] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [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: 06/01/2023]
Abstract
We used photon pulses from an x-ray free-electron laser to study ultrafast x-ray-induced transitions of graphite from solid to liquid and plasma states. This was accomplished by isochoric heating of graphite samples and simultaneous probing via Bragg and diffuse scattering at high time resolution. We observe that disintegration of the crystal lattice and ion heating of up to 5 eV occur within tens of femtoseconds. The threshold fluence for Bragg-peak degradation is smaller and the ion-heating rate is faster than current x-ray-matter interaction models predict.
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Affiliation(s)
- S P Hau-Riege
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
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22
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Hoener M, Fang L, Kornilov O, Gessner O, Pratt ST, Gühr M, Kanter EP, Blaga C, Bostedt C, Bozek JD, Bucksbaum PH, Buth C, Chen M, Coffee R, Cryan J, Dimauro L, Glownia M, Hosler E, Kukk E, Leone SR, McFarland B, Messerschmidt M, Murphy B, Petrovic V, Rolles D, Berrah N. Ultraintense x-ray induced ionization, dissociation, and frustrated absorption in molecular nitrogen. Phys Rev Lett 2010; 104:253002. [PMID: 20867372 DOI: 10.1103/physrevlett.104.253002] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2010] [Indexed: 05/11/2023]
Abstract
Sequential multiple photoionization of the prototypical molecule N2 is studied with femtosecond time resolution using the Linac Coherent Light Source (LCLS). A detailed picture of intense x-ray induced ionization and dissociation dynamics is revealed, including a molecular mechanism of frustrated absorption that suppresses the formation of high charge states at short pulse durations. The inverse scaling of the average target charge state with x-ray peak brightness has possible implications for single-pulse imaging applications.
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Affiliation(s)
- M Hoener
- Western Michigan University Physics Department, Kalamazoo, Michigan 49008, USA
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23
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24
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Rolles D, Prümper G, Fukuzawa H, Liu XJ, Pesić ZD, Fink RF, Grum-Grzhimailo AN, Dumitriu I, Berrah N, Ueda K. Molecular-frame angular distributions of resonant CO:C(1s) Auger electrons. Phys Rev Lett 2008; 101:263002. [PMID: 19437639 DOI: 10.1103/physrevlett.101.263002] [Citation(s) in RCA: 2] [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] [Indexed: 05/27/2023]
Abstract
The molecular-frame angular distributions of resonantly excited CO:C(1s) --> pi* Auger electrons were determined using angle-resolved electron-ion coincidence spectroscopy in combination with a novel transformation procedure. Our new methodology yields full three-dimensional electron angular distributions with high energy resolution from the measurement of electrons at only two angles. The experimentally determined distributions are well reproduced by calculations performed in a simple one-center approximation, allowing an unambiguous identification of several overlapping Auger lines.
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Affiliation(s)
- D Rolles
- Physics Department, Western Michigan University, Kalamazoo, Michigan 49008, USA
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25
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Prümper G, Fukuzawa H, Rolles D, Sakai K, Prince KC, Harries JR, Tamenori Y, Berrah N, Ueda K. Is CO carbon KVV Auger electron emission affected by the photoelectron? Phys Rev Lett 2008; 101:233202. [PMID: 19113548 DOI: 10.1103/physrevlett.101.233202] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2008] [Indexed: 05/27/2023]
Abstract
Angular distributions (ADs) of O+ fragments from C 1s photoexcited CO detected in coincidence with carbon KVV Auger electrons emitted in the horizontal direction were measured at photon energies of 298, 305, 320, and 450 eV. At 450 eV, the ADs are polarization-independent and coincide with the molecular-frame Auger electron angular distribution. All measured ADs can be rationalized as a product of the same molecular-frame Auger electron angular distribution and the axial selectivity in the photoionization process. Thus the interaction between the photoelectron and the Auger electron for the normal Auger decay of CO can be neglected, and the two-step model is a good approximation.
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Affiliation(s)
- G Prümper
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan
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26
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Hemmers O, Guillemin R, Rolles D, Wolska A, Lindle DW, Kanter EP, Krässig B, Southworth SH, Wehlitz R, Zimmermann B, McKoy V, Langhoff PW. Low-energy nondipole effects in molecular nitrogen valence-shell photoionization. Phys Rev Lett 2006; 97:103006. [PMID: 17025814 DOI: 10.1103/physrevlett.97.103006] [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: 06/02/2006] [Indexed: 05/12/2023]
Abstract
Observations are reported for the first time of significant nondipole effects in the photoionization of the outer-valence orbitals of diatomic molecules. Measured nondipole angular-distribution parameters for the 3sigma(g), 1pi(u), and 2sigma(u) shells of N2 exhibit spectral variations with incident photon energies from thresholds to approximately 200 eV which are attributed via concomitant calculations to particular final-state symmetry waves arising from (E1)multiply sign in circle(M1,E2) radiation-matter interactions first-order in photon momentum. Comparisons with previously reported K-edge studies in N2 verify linear scaling with photon momentum, accounting in part for the significantly enhanced nondipole behavior observed in inner-shell ionization at correspondingly higher momentum values in this molecule.
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Affiliation(s)
- O Hemmers
- Department of Chemistry, University of Nevada, Las Vegas, Nevada 89154-4003, USA
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27
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Hemmers O, Guillemin R, Rolles D, Wolska A, Lindle DW, Cheng KT, Johnson WR, Zhou HL, Manson ST. Nondipole effects in the photoionization of xe 4d5/2 and 4d3/2: evidence for quadrupole satellites. Phys Rev Lett 2004; 93:113001. [PMID: 15447334 DOI: 10.1103/physrevlett.93.113001] [Citation(s) in RCA: 2] [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: 11/24/2003] [Indexed: 05/24/2023]
Abstract
Measurements of nondipole parameters in spin-orbit-resolved Xe 4d photoionization demonstrate dynamical differences arising from relativistic effects. The experimental data do not agree with relativistic random-phase approximation calculations of single ionization dipole and quadrupole channels. It is suggested that the discrepancy is due to the omission of multiple-excitation quadrupole channels, i.e., quadrupole satellite transitions.
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Affiliation(s)
- O Hemmers
- Department of Chemistry, University of Nevada, Las Vegas, Nevada 89154-4003, USA
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28
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Kugeler O, Prümper G, Hentges R, Viefhaus J, Rolles D, Becker U, Marburger S, Hergenhahn U. Intramolecular electron scattering and electron transfer following autoionization in dissociating molecules. Phys Rev Lett 2004; 93:033002. [PMID: 15323819 DOI: 10.1103/physrevlett.93.033002] [Citation(s) in RCA: 9] [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: 04/06/2004] [Indexed: 05/24/2023]
Abstract
Resonant Auger decay of core-excited molecules during ultrafast dissociation leads to a Doppler shift of the emitted electrons depending on the direction of the electron emission relative to the dissociation axis. We have investigated this process by angle-resolved electron-fragment ion coincidence spectroscopy. Electron energy spectra for selected emission angles for the electron relative to the molecular axis reveal the occurrence of intermolecular electron scattering and electron transfer following the primary emission. These processes amount to approximately 25% of the resonant atomic Auger intensity emitted in the studied transition.
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Affiliation(s)
- O Kugeler
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
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29
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Guillemin R, Hemmers O, Rolles D, Yu SW, Wolska A, Tran I, Hudson A, Baker J, Lindle DW. Nearest-neighbor-atom core-hole transfer in isolated molecules. Phys Rev Lett 2004; 92:223002. [PMID: 15245217 DOI: 10.1103/physrevlett.92.223002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2004] [Indexed: 05/24/2023]
Abstract
A new phenomenon sensitive only to next-door-neighbor atoms in isolated molecules is demonstrated using angle-resolved photoemission of site-selective core electrons. Evidence for this interatomic core-to-core electron interaction is observable only by measuring nondipolar angular distributions of photoelectrons. In essence, the phenomenon acts as a very fine atomic-scale sensor of nearest-neighbor elemental identity.
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Affiliation(s)
- R Guillemin
- Department of Chemistry, University of Nevada, Las Vegas, Nevada 89154-4003, USA
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30
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Hemmers O, Guillemin R, Kanter EP, Krässig B, Lindle DW, Southworth SH, Wehlitz R, Baker J, Hudson A, Lotrakul M, Rolles D, Stolte WC, Tran IC, Wolska A, Yu SW, Amusia MY, Cheng KT, Chernysheva LV, Johnson WR, Manson ST. Dramatic nondipole effects in low-energy photoionization: experimental and theoretical study of Xe 5s. Phys Rev Lett 2003; 91:053002. [PMID: 12906593 DOI: 10.1103/physrevlett.91.053002] [Citation(s) in RCA: 14] [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: 01/20/2003] [Indexed: 05/24/2023]
Abstract
The Xe 5s nondipole photoelectron parameter gamma is obtained experimentally and theoretically from threshold to approximately 200 eV photon energy. Significant nondipole effects are seen even in the threshold region of this valence shell photoionization. In addition, contrary to previous understanding, clear evidence of interchannel coupling among quadrupole photoionization channels is found.
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Affiliation(s)
- O Hemmers
- Department of Chemistry, University of Nevada, Las Vegas, Nevada 89154-4003, USA
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31
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Jahnke T, Weber T, Landers AL, Knapp A, Schössler S, Nickles J, Kammer S, Jagutzki O, Schmidt L, Czasch A, Osipov T, Arenholz E, Young AT, Díez Muiño R, Rolles D, García de Abajo FJ, Fadley CS, Van Hove MA, Semenov SK, Cherepkov NA, Rösch J, Prior MH, Schmidt-Böcking H, Cocke CL, Dörner R. Circular dichroism in K-shell ionization from fixed-in-space CO and N2 molecules. Phys Rev Lett 2002; 88:073002. [PMID: 11863892 DOI: 10.1103/physrevlett.88.073002] [Citation(s) in RCA: 27] [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: 09/17/2001] [Indexed: 05/23/2023]
Abstract
We have measured the angular distributions of 1s photoelectrons excited by circularly and linearly polarized light from fixed-in-space CO and N2 molecules, in the vicinity of their shape resonances. A strong circular dichroism, i.e., a strong dependence on the sense of rotation of the polarization vector of the photons, is found for both molecules. State-of-the-art one-electron multiple scattering and partially correlated random phase approximation calculations are in good agreement with many, but not all, aspects of the experimental data.
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Affiliation(s)
- T Jahnke
- Institut für Kernphysik, University Frankfurt, August-Euler Strasse 6, D-60486 Frankfurt, Germany
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