Time-resolved x-ray scattering from laser-molten indium antimonide.
We demonstrate a concept to study transient liquids with picosecond time-resolved x-ray scattering in a high-repetition-rate configuration. Femtosecond laser excitation of crystalline indium antimonide (InSb) induces ultrafast melting, which leads to a loss of the long-range order. The remaining local correlations of the liquid result in broad x-ray diffraction rings, which are measured as a function of delay time. After 2 ns the liquid structure factor shows close agreement with that of equilibrated liquid InSb. The measured decay of the liquid scattering intensity corresponds to the resolidification rate of 1 m/s in InSb.
Nüske
R
R
Department of Physics, Atomic Physics Division, Lund University, P.O. Box 118, Lund SE-221 00, Sweden.
v Korff Schmising
C
C
Jurgilaitis
A
A
Enquist
H
H
Navirian
H
H
Sondhauss
P
P
Larsson
J
J