Holographic cells with random distribution and determined orientation

Study of diffraction gratings through holographic cells, which correspond to micro circular zones, encoded with amplitude sinusoidal gratings. The random distribution of cells on the surface of hologram and its orientation of gratings per cell, produce in the diffracted orders a random distribution. We made a study of the behavior of the random modulation of diffracted orders, as a function of the orientation of code grating per cell.