Charnotskii Mikhail
Zel Technologies, LLC, NOAA/Earth System Research Laboratory, 325 Broadway, Boulder, Colorado 80305, USA.
J Opt Soc Am A Opt Image Sci Vis. 2010 Oct 1;27(10):2180-7. doi: 10.1364/JOSAA.27.002180.
On the basis of the analytic techniques presented in the first of these two companion papers [J. Opt. Soc. Am. A27, 2169 (2010)] we present the complete asymptotic analysis of the axial beam scintillation index for coherent Gaussian beams on the ground-to-space propagation paths. The ratio of turbulence layer thickness to overall propagation path length contributes an additional small parameter to the analysis. We show that it is possible to use three dimensionless parameters to describe the problem and that the general arrangement of the asymptotic regions established in our earlier work [Waves Random Media 4, 243 (1994)]) is preserved. We find that on a slant propagation path, collimated beams can experience the unusual double-scattering-dominated scintillation found originally for focused beams.
基于这两篇配套论文中第一篇[《美国光学学会志A》27, 2169 (2010)]所提出的分析技术,我们给出了相干高斯光束在地面到空间传播路径上轴向光束闪烁指数的完整渐近分析。湍流层厚度与总传播路径长度之比为该分析贡献了一个额外的小参数。我们表明,可以用三个无量纲参数来描述该问题,并且我们早期工作[《波动随机介质》4, 243 (1994)]中建立的渐近区域的总体布局得以保留。我们发现,在倾斜传播路径上,准直光束可能会经历最初在聚焦光束中发现的不寻常的双散射主导闪烁。