43 citations · 83 across the 6 of their papers we have counts for
6 papers
Optically-Controlled Nano-Transducers Based on Cleaved Superlattices for Monitoring Gigahertz Surface Acoustic Vibrations
Changxiu Li, Nikolay Chigarev, Théo Thréard +6
Surface acoustic waves (SAWs) convey energy at subwavelength depths along surfaces. Using interdigital transducers (IDTs) and opto-acousto-optic transducers (OAOTs), researchers ha…
Non-thermal transport of energy driven by photoexcited carriers in switchable solid states of GeTe
R. Gu, T. Perrault, V. Juvé +10
Phase change alloys have seen widespread use from rewritable optical discs to the present day interest in their use in emerging neuromorphic computing architectures. In spite of th…
3D characterisation of individual grains of coexisting high-pressure H2O ice phases by time-domain Brillouin scattering
Sathyan Sandeep, Théo Thréard, Elton De Lima Savi +6
Time-domain Brillouin scattering uses ultrashort laser pulses to generate coherent acoustic pulses of picoseconds duration in a solid sample and to follow their propagation in orde…
Ultrafast light-induced shear strain probed by time-resolved X-ray diffraction: the model multiferroic BiFeO as a case study
V. Juvé, R. Gu, S. Gable +12
Enabling the light-control of complex systems on ultra-short timescales gives rise to rich physics with promising applications. While crucial, the quantitative determination of bot…
Elastic constants of polycrystalline steel evaluated with laser generated surface acoustic waves
Damien Gasteau, Nikolay Chigarev, Lili Ducousso-Ganjehi +4
We report on a laser generated and detected surface acoustic wave method for evaluating the elastic constants of micro-crystals composing polycrystalline steel. The method is based…
Revealing sub-μm inhomogeneities and μm-scale texture in H2O ice at Megabar pressures via sound velocity measurements by time-domain Brillouin scattering
Sergey M. Nikitin, Nikolay Chigarev, Vincent Tournat +5
Time-domain Brillouin scattering technique, also known as picosecond ultrasonic interferometry, which provides opportunity to monitor propagation of nanometers to sub-micrometers l…