This review discusses picosecond ultrasonics experiments using ultrashort hard x-ray probe
pulses to extract the transient strain response of laser-excited nanoscopic structures from …

Understanding how microscopic spin configuration gives rise to exotic properties at the
macroscopic length scale has long been pursued in magnetic materials,,,–. One seminal …

Ultrashort light pulses induce rapid deformations of crystalline lattices. In ferroelectrics,
lattice deformations couple directly to the polarization, which opens the perspective to …

BiFeO 3 is a technologically relevant multiferroic perovskite featuring ferroelectricity and
antiferromagnetism. Its lattice, magnetic, and ferroelectric degrees of freedom are coupled to …

Optical excitation leads to ultrafast stress generation in the prototypical multiferroic BiFeO3.
The time scales of stress generation are set by the dynamics of the population of excited …

Using femtosecond time-resolved x-ray diffraction, we investigated optically excited coherent
acoustic phonons in the Weyl semimetal TaAs. The low symmetry of the (112) surface …

Superlattices are materials created by the alternating growth of two chemically different
materials. The direct consequence of creating a superlattice is the folding of the Brillouin …

In recent years, photosensitive materials have been in huge demand because of their
fascinating ability to convert absorbed photon energy to generate strain and henceforth …

In this paper, we develop a method that combines optical birefringence properties and time-
domain Brillouin scattering microscopy to determine in situ the optical axis orientation of …

We investigate the effect of free carrier dynamics on heat transport in bulk crystalline Silicon
following femtosecond optical excitation of varying fluences. By taking advantage of the …