The objective of this investigation has been the determination of the sensitivity of
instability growth in high energy laser propagation as seen in computer simulation to
the variation of certain computational and physical parameters. The laser field has
been sampled at high density in both the axial and transverse directions. Particular
emphasis has been placed on the computational simulation of the instability damping
effect of wind fluctuation. Because of the extreme computational demands of the full
four dimensional propagation problem at high sampling density the simplifying
assumption of neglect of a single transverse dimension has been made. This
assumption restricts the range of phenomena which can be explored and somewhat
modifies the interpretation of results, however, it reduces computational costs to the
point where a hitherto unexplored region of parameter space becomes accessible. It is
believed that these computational experiments are useful in validation of full four
dimensional code results and determination of those physical effects which are likely to
warrant further study.
Lawrence W. Carlson
"Numerical experiments in propagation with wind velocity fluctuation", Proc. SPIE 1408, Propagation of High-Energy Laser Beams Through the Earth's Atmosphere II, (1 May 1991); doi: 10.1117/12.43546; https://doi.org/10.1117/12.43546
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Lawrence W. Carlson, "Numerical experiments in propagation with wind velocity fluctuation," Proc. SPIE 1408, Propagation of High-Energy Laser Beams Through the Earth's Atmosphere II, (1 May 1991);