Spatial and Emission Characteristics of Aluminum Laser Torch Plasma

摘要

The properties of metal compounds belonging to the third periodic table group with nitrogen as a high heat conductor, hardness, propagation velocity of surface acoustic waves, wide band gap, low thermal expansion coefficient, optical properties, and chemical stability allow using them in semiconductor and laser diodes with shortwave radiation, in displays based on the matrix of visible radiation microdiodes, in acoustic devices, and as materials for protective coatings in high-frequency, high-temperature, and high-energy devices [1, 2]. Therefore, a search for optimal conditions and methods for producing films of such substances is a relevant problem [3, 4]. This investigation is devoted to spatial and emission characteristics of an aluminum laser torch. Understanding the peculiarities of laser torch expansion makes it possible to predict its behavior upon reaching the substrate. Investigating the emitting torch region allows determination of the laser torch's energy characteristics during pulsed laser sputtering.