Theory of reconstruction of thick-layer speckle-field holograms

A classification of speckle-field holograms is proposed: these holograms are divided into thin-layer L<λ /θ²_AB, thick-layer λ /θ²_AB<L<λ /Δθ²_A and volume L<λ /Δθ²_A (here L and λ are the hologram thickness and the wavelength of light; θ_AB is the angle between the object and reference waves; Δθ_A is the divergence of the object field). Detailed calculations are made of the diffraction efficiency and of the noise level in the case of thick-layer phase transmission and reflection holograms.