Absorption and scattering of laser radiation by the diffusion flame of aviation kerosene

Attenuation of laser radiation by the flame of burning hydrocarbons and efficiency of remote cutting of metals

“…Really, the power of the radiation output from the flame can be presented in the form and scattering coefficients averaged over the length l, respectively, and P in is the input power at the flame entrance. Based on the results of measuring the fraction of the radiation power, scattered by the similarly-looking flame of the aviation kerosene [3], we assumed that µ << α and for mean absorption coefficient obtain the following expression which was used in an experiments for its value determination: α = (-1/l)ln(P out /P in ).…”

“…The fragment of The success of the laser radiation application for these goals is largely dependent on the efficient and lossless delivery of the radiation to the operation site. Obviously, in the case of the radiation beam propagating through the flame, the beam is attenuated, depending on the composition of the burning hydrocarbons and the length of the burning zone [3]. The conditions for radiation transmission through the flame of burning natural gas are relatively favourable.…”