Quantum cascade (QC') lasers are reviewed. These are semiconductor injection lasers
based on intersubband transitions in a multiple-quantum-well (QW) heterostructure …

During the last decade, photonic crystals, also known as photonic microstructures or
photonic bandgap structures, have matured from an intellectual curiosity concerning …

The coupling between light and collective oscillations of free carriers at metallic surfaces
and nanostructures is at the origin of one of the main fields of nanophotonics: plasmonics …

The transport and gain properties of quantum cascade (QC) structures are investigated
using a nonequilibrium Green's function (NGF) theory which includes quantum effects …

The room-temperature 300 K, pulsed mode operation of a GaAs-based quantum-cascade
laser is presented. This has been achieved by the use of a GaAs/Al0. 45Ga0. 55As …

The quantum cascade laser, which uses electronic transitions within a single band of a
semiconductor, constitutes a possible way to integrate active optical components into silicon …

Quantum-cascade lasers operating above 20 μm (at λ∼ 21.5 μm and λ∼ 24 μm)
wavelength are reported. Pulsed operation was obtained up to 140 K and with a peak power …

The first global quantum simulation of semiconductor-based quantum-cascade lasers is
presented. Our three-dimensional approach allows us to study in a purely microscopic way …

Lasers continue to be an amazingly robust field of activity. Anyone seeking a photon source
is now confronted with an enormous number of possible lasers and laser wavelengths to …

Recent advances and new directions in quantum cascade (QC) lasers are discussed.
Invented in 1994 following many years of research on band-structure engineered …