OPTIKA ATMOSFERY I OKEANA JOURNAL
V.E. ZUEV INSTITUTE OF ATMOSPHERIC OPTICS
Vol. 17, issue 01, article # 5
pdf Dmitriev D. I., Ivanov I. V., Sirazetdinov V. S., Titterton D. H. Statistics of structural state fluctuations of a laser beam disturbed by a jet of aircraft engine. // Atmospheric and oceanic optics. 2004. V. 17. No. 01. P. 39-45.Copy the reference to clipboard
Abstract:
It has been shown that when a laser beam passes through a strongly turbulent aircraft engine jet, the pulses with the quasiregular spatial structure and high angular radiation concentration can be observed. The probabilities of occurrence of such "quasiregular" pulses have been determined for different experimental conditions and various radiation wavelengths (1.06 and 0.53 mkm). Analysis of experimental data has shown that depending on the jet flow regime the statistics of random sequence of the quasiregular pulses can obey both Poisson's law and the binomial law. The averaged angular width and the dispersion of random shifts of centroids for beams crossing the jet close to its axis or side boundary are determined.