Metallic nanocrystals are ultrafine-grained polycrystalline solids with grain sizes in the range
of 1 to 10 nm in at least one dimension. Because of the extremely small dimensions, a large …

The experimental results in the field of laser generation of acoustic pulses of duration less
than 1 ns are reviewed. The various physical mechanisms of optoacoustic conversion are …

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The generation and detection of ultrasonic waves with picosecond time resolution are
described. With picosecond ultrasonics, the frequency range of acoustic waves is extended …

A thermodynamic model which predicts a significant sample-size effect on the elastic
properties of very thin films and small-period superlattices is presented. Compressive …

Using an optical technique ultrafast vibrations of the surface of thin opaque films in the 0.1-
THz range have been directly observed in the time domain. We propose a new type of …

A noncontact all‐optical method for surface photoacoustics is described. The surface
acoustic waves (SAWs) were excited employing a KrF laser and detected with a Michelson …

The mechanical properties of multilayered Cu‐Ni thin films with bilayer thicknesses of 1.6–
12 nm were investigated by a nanoindentation technique. Force‐displacement curves …

Disclosed is a system for the characterization of thin films and interfaces between thin films
through measurements of their mechanical and thermal properties. In the system light is …

Multilayer coatings with layer thicknesses in the nanometer range have been shown to
exhibit original mechanical properties: these include pronounced softening of some elastic …