In this review we address the microscopic mechanisms that are involved in the
photogeneration processes of GHz–THz coherent acoustic phonons (CAP) induced by an …

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 …

The aim of this article is to provide an introduction to picosecond laser ultrasonics, a means
by which gigahertz–terahertz ultrasonic waves can be generated and detected by ultrashort …

We report about the magnetization dynamics of a ferromagnetic nickel film at room
temperature excited by acoustic pulses generated with femtosecond laser pulses. The …

The generation mechanisms for picosecond acoustic phonon pulses excited by ultrashort
optical pulses in metals with strong electron-phonon coupling are elucidated. By means of …

The study and control of magnetic materials using ultrashort laser pulses is of great interest
both from a fundamental point of view and for potential applications in the technology of …

Approximate analytic solutions for the athermal relaxation and diffusion of carriers in free-
electron metals excited by ultrashort optical pulses are derived. The energy-loss time of the …

We derive analytical formulas for the modulation of the reflectance and transmittance of light
normally incident on a multilayer thin-film structure whose refractive indices are perturbed by …

Hypersound generation and detection by laser pulses incident on the interface of an opaque
anisotropic crystal are theoretically and experimentally investigated in the case where the …

We describe a time-division interferometer based on the Sagnac geometry for monitoring
ultrafast changes in the real and the imaginary components of the refractive index as well as …