
Concept and principle of operation
The FLAIR sensor system consists of an innovative 2D spectrometer system embedded on an airborne platform. Please, see the picture. The general working principle is the following: a broad spectrum generated by a specifically designed supercontinuum laser (emitting at 2-5 µm or 8-12 µm) (A) propagates through a multipass cell (D) filled with air samples at reduced pressure. The output spectrum with absorption features from different molecular species is dispersed by a quasi 2D