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Title: Symmetry breakdown of electron emission in extreme ultraviolet photoionization of argon

Abstract

Short wavelength free-electron lasers (FELs), providing pulses of ultrahigh photon intensity, have revolutionized spectroscopy on ionic targets. Their exceptional photon flux enables multiple photon absorptions within a single femtosecond pulse, which in turn allows for deep insights into the photoionization process itself as well as into evolving ionic states of a target. Here we employ ultraintense pulses from the FEL FERMI to spectroscopically investigate the sequential emission of electrons from gaseous, atomic argon in the neutral as well as the ionic ground state. A pronounced forward-backward symmetry breaking of the angularly resolved emission patterns with respect to the light propagation direction is experimentally observed and theoretically explained for the region of the Cooper minimum, where the asymmetry of electron emission is strongly enhanced. Furthermore, these findings aim to originate a better understanding of the fundamentals of photon momentum transfer in ionic matter.

Authors:
 [1];  [2];  [3];  [4]; ORCiD logo [5];  [6];  [7];  [8]; ORCiD logo [5];  [9]; ORCiD logo [5];  [5];  [4];  [5];  [10]; ORCiD logo [5];  [7]; ORCiD logo [11];  [12];  [5] more »;  [5];  [4];  [5];  [5]; ORCiD logo [7];  [7];  [7];  [13];  [14]; ORCiD logo [15];  [7];  [16];  [4] « less
  1. European XFEL GmbH, Schenefeld (Germany); Univ. of Kassel, Kassel (Germany)
  2. Univ. of Kassel, Kassel (Germany); Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
  3. Lomonosov Moscow State Univ., Moscow (Russia)
  4. European XFEL GmbH, Schenefeld (Germany)
  5. Elettra-Sincrotrone Trieste SCpA, Trieste (Italy)
  6. X-Spectrum GmbH, Hamburg (Germany)
  7. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
  8. European XFEL GmbH, Schenefeld (Germany); Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
  9. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  10. Ecole Polytechnique Federal de Lausanne, Lausanne (Switzerland)
  11. Univ. of Kassel, Kassel (Germany)
  12. Qamcom Research & Technology AB, Gothenburg (Sweden)
  13. Paul Scherrer Inst. (PSI), Villigen (Switzerland)
  14. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany); SLAC National Accelerator Lab., Menlo Park, CA (United States)
  15. Elettra-Sincrotrone Trieste SCpA, Trieste (Italy); CNR, IOM, Trieste (Italy)
  16. European XFEL GmbH, Schenefeld (Germany); Lomonosov Moscow State Univ., Moscow (Russia)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1490647
Grant/Contract Number:  
AC02-76SF00515
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 9; Journal Issue: 1; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS

Citation Formats

Ilchen, Markus, Hartmann, G., Gryzlova, E. V., Achner, A., Allaria, E., Beckmann, A., Braune, M., Buck, J., Callegari, C., Coffee, R. N., Cucini, R., Danailov, M., De Fanis, A., Demidovich, A., Ferrari, E., Finetti, P., Glaser, L., Knie, A., Lindahl, A. O., Plekan, O., Mahne, N., Mazza, T., Raimondi, L., Roussel, E., Scholz, F., Seltmann, J., Shevchuk, I., Svetina, C., Walter, P., Zangrando, M., Viefhaus, J., Grum-Grzhimailo, A. N., and Meyer, M. Symmetry breakdown of electron emission in extreme ultraviolet photoionization of argon. United States: N. p., 2018. Web. doi:10.1038/s41467-018-07152-7.
Ilchen, Markus, Hartmann, G., Gryzlova, E. V., Achner, A., Allaria, E., Beckmann, A., Braune, M., Buck, J., Callegari, C., Coffee, R. N., Cucini, R., Danailov, M., De Fanis, A., Demidovich, A., Ferrari, E., Finetti, P., Glaser, L., Knie, A., Lindahl, A. O., Plekan, O., Mahne, N., Mazza, T., Raimondi, L., Roussel, E., Scholz, F., Seltmann, J., Shevchuk, I., Svetina, C., Walter, P., Zangrando, M., Viefhaus, J., Grum-Grzhimailo, A. N., & Meyer, M. Symmetry breakdown of electron emission in extreme ultraviolet photoionization of argon. United States. doi:10.1038/s41467-018-07152-7.
Ilchen, Markus, Hartmann, G., Gryzlova, E. V., Achner, A., Allaria, E., Beckmann, A., Braune, M., Buck, J., Callegari, C., Coffee, R. N., Cucini, R., Danailov, M., De Fanis, A., Demidovich, A., Ferrari, E., Finetti, P., Glaser, L., Knie, A., Lindahl, A. O., Plekan, O., Mahne, N., Mazza, T., Raimondi, L., Roussel, E., Scholz, F., Seltmann, J., Shevchuk, I., Svetina, C., Walter, P., Zangrando, M., Viefhaus, J., Grum-Grzhimailo, A. N., and Meyer, M. Wed . "Symmetry breakdown of electron emission in extreme ultraviolet photoionization of argon". United States. doi:10.1038/s41467-018-07152-7. https://www.osti.gov/servlets/purl/1490647.
@article{osti_1490647,
title = {Symmetry breakdown of electron emission in extreme ultraviolet photoionization of argon},
author = {Ilchen, Markus and Hartmann, G. and Gryzlova, E. V. and Achner, A. and Allaria, E. and Beckmann, A. and Braune, M. and Buck, J. and Callegari, C. and Coffee, R. N. and Cucini, R. and Danailov, M. and De Fanis, A. and Demidovich, A. and Ferrari, E. and Finetti, P. and Glaser, L. and Knie, A. and Lindahl, A. O. and Plekan, O. and Mahne, N. and Mazza, T. and Raimondi, L. and Roussel, E. and Scholz, F. and Seltmann, J. and Shevchuk, I. and Svetina, C. and Walter, P. and Zangrando, M. and Viefhaus, J. and Grum-Grzhimailo, A. N. and Meyer, M.},
abstractNote = {Short wavelength free-electron lasers (FELs), providing pulses of ultrahigh photon intensity, have revolutionized spectroscopy on ionic targets. Their exceptional photon flux enables multiple photon absorptions within a single femtosecond pulse, which in turn allows for deep insights into the photoionization process itself as well as into evolving ionic states of a target. Here we employ ultraintense pulses from the FEL FERMI to spectroscopically investigate the sequential emission of electrons from gaseous, atomic argon in the neutral as well as the ionic ground state. A pronounced forward-backward symmetry breaking of the angularly resolved emission patterns with respect to the light propagation direction is experimentally observed and theoretically explained for the region of the Cooper minimum, where the asymmetry of electron emission is strongly enhanced. Furthermore, these findings aim to originate a better understanding of the fundamentals of photon momentum transfer in ionic matter.},
doi = {10.1038/s41467-018-07152-7},
journal = {Nature Communications},
issn = {2041-1723},
number = 1,
volume = 9,
place = {United States},
year = {2018},
month = {11}
}

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