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Randolph, Lisa; Banjafar, Mohammadreza; Yabuuchi, Toshinori; Baehtz, Carsten; Bussmann, Michael; Dover, Nicholas P.; Huang, Lingen; Inubushi, Yuichi; Jakob, Gerhard; Kläui, Mathias; Ksenzov, Dmitriy; Makita, Mikako; Miyanishi, Kohei; Nishiuchi, Mamiko; Öztürk, Özgül; Paulus, Michael; Pelka, Alexander; Preston, Thomas R.; Schwinkendorf, Jan-Patrick; Sueda, Keiichi; Togashi, Tadashi; Cowan, Thomas E.; Kluge, Thomas; Gutt, Christian;

(Sub-)Picosecond Surface Correlations of Femtosecond Laser Excited Al-Coated Multilayers Observed by Grazing-Incidence X-ray Scattering

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  • Medientyp: E-Artikel
  • Titel: (Sub-)Picosecond Surface Correlations of Femtosecond Laser Excited Al-Coated Multilayers Observed by Grazing-Incidence X-ray Scattering
  • Beteiligte: Randolph, Lisa; Banjafar, Mohammadreza; Yabuuchi, Toshinori; Baehtz, Carsten; Bussmann, Michael; Dover, Nicholas P.; Huang, Lingen; Inubushi, Yuichi; Jakob, Gerhard; Kläui, Mathias; Ksenzov, Dmitriy; Makita, Mikako; Miyanishi, Kohei; Nishiuchi, Mamiko; Öztürk, Özgül; Paulus, Michael; Pelka, Alexander; Preston, Thomas R.; Schwinkendorf, Jan-Patrick; Sueda, Keiichi; Togashi, Tadashi; Cowan, Thomas E.; Kluge, Thomas; Gutt, Christian;
  • Erschienen: MDPI AG, 2024
  • Erschienen in: Nanomaterials, 14 (2024) 12, Seite 1050
  • Sprache: Englisch
  • DOI: 10.3390/nano14121050
  • ISSN: 2079-4991
  • Entstehung:
  • Anmerkungen:
  • Beschreibung: Femtosecond high-intensity laser pulses at intensities surpassing 1014 W/cm2 can generate a diverse range of functional surface nanostructures. Achieving precise control over the production of these functional structures necessitates a thorough understanding of the surface morphology dynamics with nanometer-scale spatial resolution and picosecond-scale temporal resolution. In this study, we show that single XFEL pulses can elucidate structural changes on surfaces induced by laser-generated plasmas using grazing-incidence small-angle X-ray scattering (GISAXS). Using aluminium-coated multilayer samples we distinguish between sub-picosecond (ps) surface morphology dynamics and subsequent multi-ps subsurface density dynamics with nanometer-depth sensitivity. The observed subsurface density dynamics serve to validate advanced simulation models representing matter under extreme conditions. Our findings promise to open new avenues for laser material-nanoprocessing and high-energy-density science.
  • Zugangsstatus: Freier Zugang