Correlation Effects in Multiple Scattering from Random Rough Surfaces
Abstract
The first theoretical studies of angular correlations in the intensity of light scattered from randomly rough metal surfaces, that go beyond the factorization approximation, have been carried out. As a consequence, in addition to the memory and the time-reversed memory effects studied by earlier authors, known as the short-range C(1) correlations, the long-range C(2) correlations and the infinite-range C(3) correlations have been determined. The latter two correlation functions had been studied earlier in the scattering of light from volume disordered systems, but had not yet been studied in rough surface scattering. In addition, a new correlation function, called C(10), of the same order of magnitude as C(1) has been found, as well as another new correlation function, called C(1.5), that, along with C(2), displays peaks associated with the roughness-induced excitation of the surface electromagnetic waves supported by the vacuum-metal interface. The invalidity of the factorization approximation for weakly rough random surfaces has also been established in another set of calculations. Experimental studies of the memory and time-reversed memory effects have been carried out, as have studies of the effects of localized defects on angular correlations in the intensity of light scattered from random surfaces.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 15, 1998
- Accession Number
- ADA358015
Entities
People
- Alexel A. Maradudin
- Zu-han Gu