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Title: Ultrafast Structural Dynamics of Nanoparticles in Intense Laser Fields

Journal Article · · Physical Review Letters
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  1. Kyoto Univ., Kyoto (Japan); RIKEN SPring-8 Center, Hyogo (Japan)
  2. Tohoku Univ., Sendai (Japan)
  3. RIKEN SPring-8 Center, Hyogo (Japan); Tohoku Univ., Sendai (Japan)
  4. Argonne National Lab. (ANL), Argonne, IL (United States)
  5. Univ. of Turku, Turku (Finland)
  6. Univ. Paris-Saclay, Gif-sur-Yvette (France); “Horia Hulubei” National Institute for Physics and Nuclear Engineering, Jud. Ilfov (Romania)
  7. “Horia Hulubei” National Institute for Physics and Nuclear Engineering, Jud. Ilfov (Romania); National Institute for Laser, Plasma and Radiation Physics, Jud Llfov (Romania)
  8. Elettra-Sincrotrone Trieste, Trieste (Italy)
  9. Univ. degli Studi di Milano, Milano (Italy)
  10. Univ. degli Studi di Milano, Milano (Italy); Istituto Officina dei Materiali (IOM)-CNR, Trieste (Italy)
  11. Japan Synchrotron Radiation Research Institute (JASRI), Hyogo (Japan)
  12. RIKEN SPring-8 Center, Hyogo (Japan)
  13. Kyoto Univ., Kyoto (Japan)
  14. Argonne National Lab. (ANL), Argonne, IL (United States); Paul-Scherrer Inst., Villigen PSI (Switzerland); École Polytechnique Fédérale de Lausanne (EPFL), Lausanne (Switzerland)

Femtosecond laser pulses have opened new frontiers for the study of ultrafast phase transitions and non-equilibrium states of matter. In this letter, we report on structural dynamics in atomic clusters pumped with intense near-infrared (NIR) pulses into a nanoplasma state. Employing wide-angle scattering with intense femtosecond x-ray pulses from a free-electron laser source, we find that highly excited xenon nanoparticles retain their crystalline bulk structure and density in the inner core long after the driving NIR pulse. In conclusion, the observed emergence of structural disorder in the nanoplasma is consistent with a propagation from the surface to the inner core of the clusters.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1566124
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 12 Vol. 123; ISSN 0031-9007; ISSN PRLTAO
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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