The vast majority of gaseous chemical substances exhibit fundamental rovibrational
absorption bands in the mid-infrared spectral region (2.5–25 μm), and the absorption of light …

Mid-infrared (MIR) imaging has emerged as a valuable tool to investigate biological
samples, such as tissue histological sections and cell cultures, by providing non-destructive …

The quantum cascade laser (QCL) is an important laser source in the mid-infrared and
terahertz frequency range. The past twenty years have witnessed its tremendous …

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 …

The performances of mid-infrared (IR) quantum cascade lasers (QCLs) are now reaching a
maturity level that enables a variety of applications which require compact laser sources …

Quantum cascade laser (QCL) is an important source of electromagnetic radiation in mid
infrared region. Recent research in mid-IR QCLs has resulted in record high wallplug …

The quantum cascade laser (QCL) is becoming the leading laser source in the mid-infrared
(mid-IR) range, which contains two atmospheric transmission windows and many molecular …

Interband Cascade Lasers (ICLs) with threshold current densities below 100 A/cm 2 in
pulsed operation at room temperature are presented. The laser structure comprises 10 …

This letter reports on mid-infrared laser-based detection and analysis of chemical species.
Emphasis is put on broadly tunable laser sources and sensitive detection schemes …

In this paper we present two compact, quantum cascade laser absorption spectroscopy
based, sensors developed for trace substance detection in gases and liquids. The gas …