TY  - JOUR
A1  - Sander, Mathias
A1  - Pudell, Jan-Etienne
A1  - Herzog, Marc
A1  - Bargheer, Matias
A1  - Bauer, R.
A1  - Besse, V.
A1  - Temnov, V.
A1  - Gaal, P.
T1  - Quantitative disentanglement of coherent and incoherent laser-induced surface deformations by time-resolved x-ray reflectivity
JF  - Applied physics letters
N2  - 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.
Y1  - 2017
U6  - https://doi.org/10.1063/1.5004522
SN  - 0003-6951
SN  - 1077-3118
VL  - 111
PB  - American Institute of Physics
CY  - Melville
ER  -