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

The temperature dependences of the threshold current and slope efficiency, as represented
by their respective characteristic temperature coefficients T 0 and T 1, are discussed for …

Terahertz quantum cascade laser sources with intra-cavity non-linear frequency mixing are
the first room-temperature electrically pumped monolithic semiconductor sources that …

Sharing the advantages of high optical power, high efficiency and design flexibility in a
compact size, quantum cascade lasers (QCLs) are excellent mid-to-far infrared laser …

We report the performance of room temperature terahertz sources based on intracavity
difference-frequency generation in mid-infrared quantum cascade lasers with a dual-upper …

In this paper, we report a post-polishing technique to achieve nearly complete surface
planarization for the buried ridge regrowth processing of quantum cascade lasers. The …

We report high photoresponse measured in a room temperature quantum cascade detector
(QCD) based on a coupled quantum well design that operates with a peak response …

The quality of epitaxial layers in quantum cascade lasers (QCLs) has a primary impact on
QCL performance, and establishing correlations between epitaxial growth and materials …

In this work, we demonstrate a single-mode 1.0 THz quantum-cascade laser source with
difference-frequency generation. The room temperature electrically pumped monolithic …

Room-temperature lasing at a wavelength of 8 μm in multistage quantum-cascade lasers
pumped by current pulses is demonstrated. A quantum-cascade laser heterostructure based …