Numerical solutions of the fourth-moment differential equation are obtained for a finite, initially Gaussian beam propagating in a. two-dimensional homogeneous and isotropic random medium with a Gaussian correlation function. In addition to the covariance of the intensity fluctuations, the full spatial dependence of the fourth moment of the propagating field is described for several beam diameters and propagation lengths.
|Number of pages
|Journal of the Optical Society of America A: Optics and Image Science, and Vision
|Published - 1 Dec 1985