Laser-induced break-down spectroscopy lidar
Breakdown can be induced in a material by focusing an intense laser onto a small spot. This induces a plasma that contains ablated material and thereby free atoms and ions that are excited. When de-exciting, characteristic spectral lines are sent out, which can be detected and analyzed in a spectrometer and thus the chemical content of the target can be measured. This has been performed using the lidar system with a target distance of ~60 m. The same setup can be used for remote laser cleaning of ,e.g., facades and statues, etc.