Security Classification INVESTIGATION OF LASER PROPAGATION PHENOMENA

This report contains detailed information on the theoretical efforts of Ohio State University conducted in direct support of the RADC Laser Propagation Program. The efforts described are concentrated in three main areas: the examination of proper averaging times required for specific propagation experiments; the calculation of theoretical curves predicting results of various experiments along slant paths; and the calculation of predicted results for the temporal spoctra of particular atmospheric effects. The theoretical development and calculations have been aimed at providing useful information for comparative purposes with experimental efforts and for use by systems designers. The atmospheric effects included in the analysis are; phase structure function, angle of arrival and coherence length. Both the spatial and temporal characteristics have been considered.