Research Journal of Physics1819-3463xxxx-xxxxorgz10.3923/rjp.2007.60.63EkumaE.C.1200711The fluctuations of laser light by inhomogeneous surfaces have been investigated in the light of two scattering models: The discrete random walk-and the phase screen-models. By assuming a complex Gaussian field distribution, the filed autocorrelation functions are found to be space and time dependent and that the inhomogeneous infinite nature of most distant bodies can be studied using these models.]]>Beckmann, P. and A. Spizzichino,1963Bernes, B.J.,1976Cummins, H.Z. and E.R. Pike,1973Dainty, J.C.,1975Goodman, J.W.,1985Jeff, H.,1994Schultz-Dubois, E.O.,1983Sheng, P., 1985