Diffraction properties of multi-layer holograms

Based on the theory of connected waves the peculiarities of diffraction of light on multi-layered holograms was analysed. For two-edged holograms depending on diffraction efficiency from wavelength of the falling light one can observe oscillations, the period of which can be generally determined by the distance between the subholograms. For a multilayered hologram consisting of subholograms depending on the diffraction efficiency from the wavelength only every m-l peak has a big amplitude, the angle's width of this peak and the amplitudes of other peaks decrease with the increase of m. This case represents a multi-layer interferometer. The recording of a multilayered hologram can be done with the help of a simple hologram. Two edged and multilayered holograms as a matter of fact represent indivisible two rays and multi ray interferometers.