Time-resolved, pulsed terahertz spectroscopy has developed into a powerful tool to study
charge carrier dynamics in semiconductors and semiconductor structures over the past …

The study of magneto-optical absorption has stimulated diverse energy-technology-related
explorations, showing potential in breaking the current theoretical efficiency limits of energy …

Nonreciprocal elements are a vital building block of electrical and optical systems. In the
infrared regime, there is a particular interest in structures that break reciprocity because their …

Designing next-generation light-harvesting devices requires a detailed understanding of the
transport of photoexcited charge carriers. The record-breaking efficiencies of metal halide …

We study terahertz (THz) emission from GaAs as a function of photon energy and electric
field. THz radiation arises from transport of photogenerated charge in an electric field and by …

The ultrafast transition of an optical phonon resonance to a coupled phonon-plasmon
system is studied. After 10-fs photoexcitation of i-InP, the buildup of coherent beats of the …

Terahertz radiation from differently doped n-and p-type InAs crystal surfaces was
investigated by time-resolved measurement. Large increase of the emitted terahertz power …

We observe intense pulses of far-infrared electromagnetic radiation emitted from arrays of
InAs nanowires. The terahertz radiation power efficiency of these structures is∼ 15 times …

We report femtosecond optically excited terahertz (THz) emission from tellurium doped
GaSb at room temperature. The influence of the majority and minority carrier type and …

Light and matter can strongly mix together to form hybrid particles called polaritons. In recent
years, polaritons in the so-called ultrastrong coupling (USC) regime have attracted much …