Filtern
Volltext vorhanden
- nein (1)
Erscheinungsjahr
- 2017 (1)
Dokumenttyp
Sprache
- Englisch (1)
Gehört zur Bibliographie
- ja (1)
Institut
We present time-resolved x-ray reflectivity measurements on laser excited coherent and incoherent surface deformations of thin metallic films. Based on a kinematical diffraction model, we derive the surface amplitude from the diffracted x-ray intensity and resolve transient surface excursions with sub-angstrom spatial precision and 70 ps temporal resolution. The analysis allows for decomposition of the surface amplitude into multiple coherent acoustic modes and a substantial contribution from incoherent phonons which constitute the sample heating. Published by AIP Publishing.