Using ultrafast X-ray diffraction, we study the coherent picosecond lattice dynamics of
photoexcited thin films in the two limiting cases, where the photoinduced stress profile …

The udkm 1 Dsim toolbox is a collection of matlab (MathWorks Inc.) classes and routines to
simulate the structural dynamics and the according X-ray diffraction response in one …

Using time-resolved x-ray diffraction, we demonstrate the manipulation of the picosecond
strain response of a metallic heterostructure consisting of a dysprosium (Dy) transducer and …

Engineering of phonons, that is, collective lattice vibrations in crystals, is essential for
manipulating physical properties of materials such as thermal transport, electron‐phonon …

Phonons are often regarded as delocalized quasiparticles with certain energy and
momentum. The anharmonic interaction of phonons determines macroscopic properties of …

We utilized transmission-type pump–probe technique to investigate coherent acoustic
phonons in the superlattices of perovskite oxides such as SrIrO 3/SrTiO 3 and SrRuO …

X-ray reflectivity measurements of femtosecond laser-induced transient gratings (TG) are
applied to demonstrate the spatiotemporal coherent control of thermally induced surface …

We report generation of ultra-broadband longitudinal acoustic coherent phonon
wavepackets in SrTiO 3 (STO) with frequency components extending throughout the first …

We synthesize sub-THz longitudinal quasimonochromatic acoustic phonons in a SrTiO 3
single crystal using a SrRuO 3/SrTiO 3 superlattice as an optical-acoustic transducer. The …

We monitor how destructive interference of undesired phonon frequency components
shapes a quasi-monochromatic hypersound wavepacket spectrum during its local real-time …