The investigation of molecules in the mid-IR spectral range has revolutionized our
understanding in many fields such as atmospheric chemistry and environmental sensing for …

Polyethylene is a promising polymer for mid-infrared integrated optics due to its broad
transparency and optimal refractive index. However, simple fabrication protocols that …

We report on the design, fabrication, and performance of dual-wavelength distributed-
feedback (DFB) quantum cascade lasers (QCLs) emitting at several wavelengths in the mid …

Grating-coupled surface-emitting (GCSE) lasers generally operate with a double-lobed far-
field beam pattern along the cavity-length direction, which is a result of lasing being favored …

The achievement in 1994 [1] of implementing the intersubband-transition laser concept [2],
together with the achievement in 2002 of continuous-wave (CW) roomtemperature (RT) …

We investigate the high frequency modulation characteristics of mid-infrared surface-
emitting ring and edge-emitting ridge quantum cascade lasers (QCLs). In particular, a …

In this article we present our latest work on the optimization of mid-infrared quantum
cascade laser fabrication techniques. Our efforts are focused on low dissipation devices …

We review the progress of multi-wavelength distributed feedback (DFB) quantum cascade
lasers (QCLs) as sources for broadband mid-infrared (mid-IR) spectroscopy. While it is …

Absorption spectroscopy of gases and liquids is amongst the most widely used methods to
measure molecular concentrations. It is used in various fields, amongst them are industrial …

Subject of study. Distributed-feedback ring-cavity surface-emitting quantum-cascade lasers
are studied. Aim of study. The aim is to realize stable single-mode emission in ring-cavity …