FRESNELS RINGS IN RECONSTRUCTION OF SCATTERING MEDIA HOLOGRAMS

The theoretical description of the field reconstructed from an in-line hologram of dispersed media is presented. The intensity distribution in the focal plane of a lens placed behind a hologram is analyzed. It is shown that two overlapped patterns are observing in this plane. The first pattern is entirely in accordance with the small-angle spectrum of radiation scattered by the ensemble of particles, and its view doe s not depend on the distances between the particles, the hologram, and the lens. The second pattern is made of Fresnel's rings and depends o n the distance between the particles and the A statistical interpretat ion of the distribution of intensity in the focal plane of a lens is p roposed. Experimental results and discussion are presented.