The terahertz region of the electromagnetic spectrum, spanning from 100 GHz through 10
THz, is of increasing importance for a wide range of scientific, military and commercial …

The terahertz region of the electromagnetic spectrum offers considerable opportunities for
exploitation. Recent advances in source and coherent–detection technology have enabled …

Infrared Detectors provides comprehensive coverage of this important aspect of infrared
technology, including details of recent research efforts directed toward improving the …

Optoelectronic techniques for generation and detection of terahertz (THz) signals have been
reviewed. The operation principles of THz photomixer sources and THz parametric sources …

We propose the idea of developing THz quantum cascade lasers (QCLs) with GaN-based
quantum well (QW) structures with significant advantages over the currently demonstrated …

We demonstrate heterodyne mixing of two free-running, multimode, 3.3-THz quantum
cascade lasers by use of a point-contact Schottky diode. By temperature tuning the emission …

A THz (λ∼ 80 μ m) quantum-cascade laser utilizing alternating photon-and phonon-emitting
stages has been developed to achieve efficient extraction of electrons from the lower laser …

Details of the design, growth, fabrication, and operation of quantum cascade lasers (QCLs)
that emit in the terahertz region (1–10THz) of the electromagnetic spectrum are presented …

Quantum cascade (QC) lasers operating at terahertz frequencies were demonstrated two
years ago, and, since then, their development has proceeded at a very rapid pace. The gain …

We report a compact terahertz (THz) gas laser based on the cavity photonic crystal fiber
(PCF). This compact structure consists of a large air core PCF constructed by high-density …