We review the most recent technological and application advances of quantum cascade
lasers, underlining the present milestones and future directions from the Mid-infrared to the …

This study conducts a comparative analysis, using non-equilibrium Green's functions
(NEGF), of two state-of-the-art two-well (TW) Terahertz Quantum Cascade Lasers (THz …

One-dimensional nanostructures commonly refer to nanomaterials with a large length-to-
diameter ratio, such as nanowires, nanotubes, nanorods, and nanopillars. The nanoscale …

Transport and gain properties of a resonant-phonon terahertz quantum cascade laser are
calculated using nonequilibrium Green's functions. Impurity scattering is shown to be …

Semiconductor superlattices are periodic nanostructures consisting of epitaxially grown
quantum wells and barriers. For thick barriers, the quantum wells are weakly coupled and …

We report the observation of transverse-magnetic-polarized infrared absorption assigned to
the s–pz intraband transition in Ge-doped GaN/AlN nanodisks (NDs) in self-assembled GaN …

We present a novel and very efficient method for calculating quantum transport in quantum
cascade lasers (QCLs). It follows the nonequilibrium Green's function (NEGF) framework but …

GaN/AlN is a promising material system for the development of an ultrafast intersubband
technology operating at telecommunication wavelengths, thanks to the large conduction …

A density matrix based method is introduced for computation of steady-state dynamics in
quantum cascade systems of arbitrary size, which incorporates an optical field coherently …

Carrier transport in GaN terahertz (THz) quantum cascade laser (QCL) structures is
theoretically investigated using a non-equilibrium Green's function method. Although …