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Sensitivity of nonlinear photoionization to resonance substructure in collective excitation.
Mazza, T; Karamatskou, A; Ilchen, M; Bakhtiarzadeh, S; Rafipoor, A J; O'Keeffe, P; Kelly, T J; Walsh, N; Costello, J T; Meyer, M; Santra, R.
Afiliación
  • Mazza T; European XFEL GmbH, Albert-Einstein-Ring 19, 22761 Hamburg, Germany.
  • Karamatskou A; 1] Center for Free-Electron Laser Science, DESY, Notkestrasse 85, 22607 Hamburg, Germany [2] Department of Physics, University of Hamburg, Jungiusstrasse 9, 20355 Hamburg, Germany.
  • Ilchen M; 1] European XFEL GmbH, Albert-Einstein-Ring 19, 22761 Hamburg, Germany [2] Stanford PULSE Institute, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA.
  • Bakhtiarzadeh S; 1] European XFEL GmbH, Albert-Einstein-Ring 19, 22761 Hamburg, Germany [2] Department of Physics, University of Hamburg, Jungiusstrasse 9, 20355 Hamburg, Germany.
  • Rafipoor AJ; 1] European XFEL GmbH, Albert-Einstein-Ring 19, 22761 Hamburg, Germany [2] Department of Physics, University of Hamburg, Jungiusstrasse 9, 20355 Hamburg, Germany.
  • O'Keeffe P; CNR Istituto di Struttura della Materia, CP10, I-00016 Monterotondo Scalo, Italy.
  • Kelly TJ; School of Physical Sciences and NCPST, Dublin City University, Dublin 9, Ireland.
  • Walsh N; School of Physical Sciences and NCPST, Dublin City University, Dublin 9, Ireland.
  • Costello JT; School of Physical Sciences and NCPST, Dublin City University, Dublin 9, Ireland.
  • Meyer M; European XFEL GmbH, Albert-Einstein-Ring 19, 22761 Hamburg, Germany.
  • Santra R; 1] Center for Free-Electron Laser Science, DESY, Notkestrasse 85, 22607 Hamburg, Germany [2] Department of Physics, University of Hamburg, Jungiusstrasse 9, 20355 Hamburg, Germany.
Nat Commun ; 6: 6799, 2015 Apr 09.
Article en En | MEDLINE | ID: mdl-25854939
Collective behaviour is a characteristic feature in many-body systems, important for developments in fields such as magnetism, superconductivity, photonics and electronics. Recently, there has been increasing interest in the optically nonlinear response of collective excitations. Here we demonstrate how the nonlinear interaction of a many-body system with intense XUV radiation can be used as an effective probe for characterizing otherwise unresolved features of its collective response. Resonant photoionization of atomic xenon was chosen as a case study. The excellent agreement between experiment and theory strongly supports the prediction that two distinct poles underlie the giant dipole resonance. Our results pave the way towards a deeper understanding of collective behaviour in atoms, molecules and solid-state systems using nonlinear spectroscopic techniques enabled by modern short-wavelength light sources.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Diagnostic_studies / Prognostic_studies Idioma: En Revista: Nat Commun Asunto de la revista: BIOLOGIA / CIENCIA Año: 2015 Tipo del documento: Article País de afiliación: Alemania Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Diagnostic_studies / Prognostic_studies Idioma: En Revista: Nat Commun Asunto de la revista: BIOLOGIA / CIENCIA Año: 2015 Tipo del documento: Article País de afiliación: Alemania Pais de publicación: Reino Unido