The terahertz (THz) frequency quantum cascade laser (QCL) is a compact source of THz
radiation offering high power, high spectral purity and moderate tunability. As such, these …

Terahertz (THz) quantum cascade lasers (QCLs) are semiconductor-based electrically
pumped laser sources that are based on electron transitions between the subbands in the …

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 …

Coherent imaging in the THz range promises to exploit the peculiar capabilities of these
wavelengths to penetrate common materials like plastics, ceramics, paper or clothes with …

Near-field imaging techniques, at terahertz frequencies (1–10 THz), conventionally rely on
bulky laser sources and detectors. Here, we employ a semiconductor heterostructure laser …

We report two-dimensional apertureless near-field terahertz (THz) imaging using a quantum
cascade laser (QCL) source and a scattering probe. A near-field enhancement of the …

We report on circuit simulation, modeling, and characterization of field-effect transistor based
terahertz (THz) detectors (TeraFETs) with integrated patch antennas for discrete frequencies …

In this paper we report an improved method of coherent sensing through the use of a
generalized phase-stepping algorithm to extract magnitude and phase information from …

We report a coherent terahertz (THz) imaging system that utilises a quantum cascade laser
(QCL) operating in pulsed-mode as both the source and detector. The realisation of a short …

A non-monochromatic THz Quantum Cascade Laser and an uncooled micro-bolometer
array detector with VGA resolution are used in a beam-splitter free holographic set-up to …