Robuta

https://www.mdpi.com/2227-9040/11/1/30
The external-cavity quantum cascade laser (ECQCL) is an ideal mid-infrared (MIR) spectral light source for determining large molecular-absorption spectral...
quantum cascade lasergas sensorexternalcavitybased
https://arxiv.org/abs/0912.2683v1
Abstract page for arXiv paper 0912.2683v1: Observing the intrinsic linewidth of a quantum-cascade laser: beyond the Schawlow-Townes limit
observingintrinsiclinewidthquantumcascade