Terahertz (THz) waves are non-ionizing radiations with unique properties of both microwave
and infrared. THz imaging and spectroscopy have been widely used for non-destructive …

Terahertz quantum cascade laser (QCL) sources based on intra-cavity difference frequency
generation are currently the only electrically pumped monolithic semiconductor light sources …

The terahertz spectral range (λ= 30–300 µm) has long been devoid of compact, electrically
pumped, room-temperature semiconductor sources,,,. Despite recent progress with terahertz …

We propose a design of a terahertz-frequency signal generator based on a layered structure
consisting of a current-driven platinum (Pt) layer and a layer of an antiferromagnet (AFM) …

Miniaturized frequency comb sources across hard-to-access spectral regions, ie mid-and far-
infrared, have long been sought. Four-wave-mixing based Quantum Cascade Laser combs …

Quantum cascade lasers (QCLs) represent the most fascinating achievement of quantum
engineering, showing how artificial materials can be generated through quantum design …

Quantum cascade lasers (QCLs) are high-power sources of coherent radiation in the
midinfrared and terahertz (THz) bands. Laser feedback interferometry (LFI) is one of the …

Four-wave-mixing-based quantum cascade laser frequency combs (QCL-FC) are a powerful
photonic tool, driving a recent revolution in major molecular fingerprint regions, ie mid-and …

The ability to engineer quantum-cascade-lasers (QCLs) with ultrabroad gain spectra, and
with a full compensation of the group velocity dispersion, at terahertz (THz) frequencies, is …

Quantum cascade lasers (QCLs) are becoming a key tool for plenty of applications, from the
mid-infrared (mid-IR) to the THz range. Progress in related areas, such as the development …