A method of achieving the maximum diffraction efficiency of holograms based on optimizing the form factor

For the case of 3D phase holograms, the impact of the form factor on the hologram diffraction efficiency is shown. The form factor concept is introduced by analogy with the classical definition, which is used for calculating the averaged interaction of complex-shaped objects. In the present context, the form factor concept is used for determining the average diffraction efficiency of the holograms formed with the help of beams distributed non-uniformly over the hologram field. It is shown that after calculating the corrections, they can be used in the same way as coefficients in the classical formulas of the diffraction efficiency. The impact of such a form factor only comes into play when there are two factor present at the same time, i. e. non-linearity of photoresponse and non-uniformity of the light beam distribution over the hologram field.