Active hyperspectral mid-infrared imaging based on a widely tunable quantum cascade laser for early detection of plant water stress

• Published in: Optical engineering Vol. 60; no. 2; p. 023106
• Main Authors: El Fakir, Chaimae, Hjeij, Maroun, Le Page, Ronan, Poffo, Luiz, Billiot, Bastien, Besnard, Pascal, Goujon, Jean-Marc
• Format: Journal Article
• Language: English
• Published: Society of Photo-Optical Instrumentation Engineers 01.02.2021; SPIE
• Subjects: Agricultural sciences; Engineering Sciences; Life Sciences; Optics; Photonic; Sciences and technics of agriculture; water stress; plant classification; mid-infrared; spectroscopy; hyperspectral imaging; tunable quantum cascade laser

Plant water stress has been extensively studied using hyperspectral visible- and near-infrared systems. Thermal imaging and the recent availability of widely tunable infrared quantum cascade laser (QCL) allow us to propose an active hyperspectral imaging system operating in the mid-infrared (MIR) ba...