Understanding and controlling vibrations in condensed matter is emerging as an essential
necessity both at fundamental level and for the development of a broad variety of …

In this article we first present the foundations of ultrafast photoacoustics, a technique where
the acoustic wavelength in play can be considerably shorter than the optical wavelength …

We present a free-running 80-MHz dual-comb polarization-multiplexed solid-state laser
which delivers 1.8 W of average power with 110-fs pulse duration per comb. With a high …

The mechanical vibrations of individual gold nanodisks nanopatterned on a sapphire
substrate are investigated using ultrafast time-resolved optical spectroscopy. The number …

We present an all-optical method to investigate the GHz dynamics of the elastic contact
between a single metallic nanoparticle and a substrate. A resonant excitation mechanism …

Longitudinal acoustic modes in planar thin gold films are excited and detected by a
combination of ultrafast pump-probe photoacoustic spectroscopy and a surface plasmon …

The morphological and mechanical properties of nanoparticles-based ultrathin Ag films,
synthesized by supersonic cluster beam deposition over a sapphire substrate, are unveiled …

The mechanical properties of cells play a key role in several fundamental biological
processes, such as migration, proliferation, differentiation and tissue morphogenesis. The …

We quantitatively study interfacial adhesion in a two-layer membrane system consisting of Al
and Si with femtosecond time-resolved laser spectroscopy. High-frequency acoustic pulses …

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 …