We present a numerical study of the dispersion characteristic modification of nonlinear
photonic crystal fibers infiltrated with liquids. A photonic crystal fiber based on the soft glass …

Mode selection and power extraction are the core of single-mode semiconductor lasers, but
generally, they restrict each other. A large gain area with high radiation efficiency is …

Dephasing in terahertz quantum cascade structures is studied within a density matrix
formalism. We self-consistently calculate the pure dephasing time from the intrasubband …

The dynamical tuning due to rear facet illumination of single-mode, terahertz (THz) quantum-
cascade lasers (QCLs) which employ distributed feedback gratings are compared to the …

We presented a technique to realize single-mode quantum cascade lasers by simply etching
several large-period slots in the ridge, which leads to refractive index perturbations and …

In this work, two-section, coupled cavity, mid-IR quantum cascade lasers (QCLs) were
characterized in terms of their tuning range and emission stability under operation towards …

Several attempts have been made to build terahertz Quantum Cascade Lasers with the
capability for frequency tuning exceeding the range accessible by variation of temperature …

Interband cascade lasers are exceptionally versatile, high-tech semiconductor lasers. They
represent the latest generation of semiconductor lasers that generate radiation in the mid …

Focused ion beam processing has been applied to fabricate coupled-cavity
AlInAs/InGaAs/InP quantum cascade lasers. The evolution of the mode spectrum of the two …

Luminescence studies are used to investigate the local properties of various light-emitting
materials. A critical issue of these studies is presented that the signals often lack all …