 Laser-induced incandescence

Laser-Induced Incandescence (LII) is a diagnostic technique used primarily in the study of combustion and particulate matter in various environments. It involves the use of a laser to excite particles, such as soot or other nanoparticles, to a high energy state. When these particles absorb the laser energy, they become incandescent, emitting light as they return to their lower energy states.