Angular sensitivity of holograms with a reference speckle wave

The present theoretical and experimental investigation of angular sensitivity in holograms employing a reference speckle wave gives attention to a novel mechanism which bridged the spatial mismatch of the reference and reconstruction wave structures. By contrast with a simple sinusoidal grating, the hologram has sufficiently great angular sensitivity under rotation about the input hologram plane. Under rotation about the axis parallel to the grating layers, angular sensitivity is a function of the mutual effects of cross-grating angular selectivity and the speckle-structure angular mismatch.