Furutsu K, Ito S
Appl Opt. 1993 Dec 20;32(36):7512-27. doi: 10.1364/AO.32.007512.
An exact integral representation of the fourth-order moment function was previously obtained for a general class of beam waves. It is applied here to evaluate specifically the intensity-correlation function based on the Kolmogorov spectrum of turbulence. The beam waves are described by introducing two new parameters that have a more basic and simpler meaning than the conventionals. Many illustrations are presented, not only as a function of propagation distance but also as a function of two independent distances of separation from the beam axis, for varieties of location of the focal plane, beam width, and inner scale of turbulence. The significance of the present evaluation of the intensity moment is discussed in connection with the moments of higher order.
先前已针对一般类型的波束波获得了四阶矩函数的精确积分表示。在此将其应用于基于湍流的科尔莫戈罗夫谱具体评估强度相关函数。通过引入两个新参数来描述波束波，这两个参数比传统参数具有更基本、更简单的含义。给出了许多示例，不仅作为传播距离的函数，还作为与波束轴的两个独立分离距离的函数，涉及焦平面的各种位置、波束宽度和湍流内尺度。结合高阶矩讨论了当前强度矩评估的意义。
