Whether in a smartphone or laptop, semiconductors form the basis of modern electronics and accompany us constantly in everyday life. The processes taking place inside these materials are the subject ...

New measurements in germanium reveal how excited electrons drive lattice vibrations that govern energy flow and heating in semiconductors. (Nanowerk News) Whether in a smartphone or laptop, ...

An extremely fast microscopy method to research the interaction of light and matter makes it possible to study optical processes on very short timescales. To this end, a German–Italian research team ...

Ultrafast spectroscopy of electronic dynamics encompasses a suite of techniques designed to probe and visualise the motion of electrons and nuclei in molecules and materials on timescales approaching ...

Attosecond pulses capture ultrafast electron and light–matter dynamics on the shortest timescales accessible to controlled experiments, making them indispensable tools for ultrafast spectroscopy, ...

Ultrafast spectroscopy has emerged as a powerful tool for dissecting the mechanisms and time scales of proton transfer in chemical and biological systems. By employing light pulses on the femtosecond ...

Chip-based ultrafast laser rivals tabletop systems, delivering powerful femtosecond pulses for sensing, spectroscopy, ...

Excitons--bound pairs of electrons and holes created by light--are key to the optoelectronic behavior of carbon nanotubes (CNTs). However, because excitons are confined to extremely small regions and ...

A team at EPFL has built an ultrafast laser on a single photonic chip that fires femtosecond pulses at energy levels ...

Ultrafast lasers emit pulses lasting only a few hundred femtoseconds (quadrillionths of a second). These flashes of light ...