We review the application of ultrafast optical spectroscopy in the study of correlated electron
materials. The emphasis is on all-optical pump–probe and optical pump–far-infrared probe …

The desorption of atoms or molecules from solid surfaces is a key step in heterogeneous
catalysis, photocatalysis, electrochemistry, and surface nanochemistry. The breaking of a …

Electron-electron and electron-lattice interactions in noble metals are discussed in the light
of two-color femtosecond pump-probe measurements in silver films. The internal …

Irradiation of a metal with an ultrashort laser pulse leads to a disturbance of the free-electron
gas out of thermal equilibrium. We investigate theoretically the transient evolution of the …

Silicon irradiated with an ultrashort 800 nm-laser pulse is studied theoretically using a two
temperature description that considers the transient free carrier density during and after …

The well-known two-temperature model is a valuable tool to investigate ultrafast electron
dynamics, despite its inadequacy to describe the initial nonthermal carrier distribution …

A semiempirical theory for the excitation and subsequent relaxation of nonthermal electrons
is described. The theory, which is applicable to ultrafast-laser excited metals, is based on the …

The evolution of the electron distribution in a metal irradiated by an ultrashort laser pulse is
described on the basis of numerical solution of the equation for the one-particle density …

The dynamics of a thin ruthenium film irradiated by femtosecond extreme UV laser pulses is
studied with a hybrid computational approach, which includes Monte Carlo, two-temperature …

When an ultrashort laser pulse excites a metal surface, only a few of all the free electrons
absorb a photon. The resulting non-equilibrium electron energy distribution thermalizes …