The recent construction of free electron lasers allows extending laboratory-based laser
experiments to shorter wavelengths, accessing wavevectors typical of nanoscale dynamics …

Collective lattice dynamics determine essential aspects of condensed matter, such as elastic
and thermal properties. These exhibit strong dependence on the length-scale, reflecting the …

Standard continuum assumptions commonly used to describe the fluid mechanics of simple
liquids have the potential to break down when considering flows at the nanometer scale …

Liquid viscous and viscoelastic properties are very important parameters in determining
rheological phenomena. Mechanical resonators with extremely high vibrational frequencies …

This paper presents and discusses the temperature and frequency dependence of the
longitudinal and shear viscoelastic response at MHz and GHz frequencies of the …

Brillouin oscillations, which are GHz frequency waves that arise from the interaction of light
with acoustic waves, are experiencing increasing applications in biology and materials …

The aim of this article is to provide an overview of the up-to-date findings related to ultrafast
shear acoustic waves. Recent progress obtained for the laser generation and detection of …

Ultrafast laser excitation of nanostructures causes rapid heating that can excite vibrational
modes that map onto the expansion coordinates. These modes lose energy by radiating …

This contribution intends to convince readers that by virtue of the rich physics involved,
optical excitation, thermal diffusion, thermal expansion, and acoustic wave propagation, and …

We present a picosecond optoacoustic technique for mapping both the longitudinal sound
velocity v and the refractive index n in solids by automated measurement at multiple probe …