Laser filamentation is a phenomenon where high-intensity laser pulses form self-guided beams of light that can propagate long distances through a medium, such as air or glass. This process is characterized by the formation of a narrow, intense "filament" of light that can be several meters in length and only a few micrometers in diameter. Laser filamentation has a wide range of applications in various scientific fields, including atmospheric science, ultrafast spectroscopy, and laser-induced breakdown spectroscopy. The study of laser filamentation involves understanding the complex interactions between the intense laser pulse and the medium it is propagating through, as well as the generation of various nonlinear optical effects, such as self-focusing, self-phase modulation, and white-light generation.