A study of optical backscattering enhancement from one-dimensional rough surface using Monte Carlo method

In this paper, according to Kirchhoff approximation, the optical backscatte ring enhancement of one-dimensional random rough surface, which includes fr actal rough surfaces and random rough surfaces with Gaussian and exponentia l correlation simulated by Monte Carlo method, is obtained, It is shown tha t backscattering enhancement of random rough surfaces will increase with in creasing the rms height of rough surface for a given correlation length. Th e angle width of backscattering enhancement is directly proportional to inc ident wavelength and inverse proportional to correlation length of rough su rface. Complex phase of scattering field from superposed rough surface is u niformly distributed, none of the directions is of more overweight, The bac kscattering enhancement is also studied by wavelet analysis. The numerical results show good consistent with that of the relative references.