We analyze and demonstrate the three-dimensional shifting selectivity of volume holograms based on random phase encoding with ground glass. Under weak coupling, the diffraction characteristic is caused by the phase difference between the reference and the reading light. We find that the shifting selectivity is different for different shifting directions, which include laterally horizontal, laterally vertical, and longitudinal directions. The shifting selectivity depends on the diameter of the region of illumination on the random phase plate, the thickness of the hologram, and the distance between them.
© 2001 Optical Society of America
(090.0090) Holography : Holography
(090.7330) Holography : Volume gratings
(190.5330) Nonlinear optics : Photorefractive optics
(210.0210) Optical data storage : Optical data storage
(210.2860) Optical data storage : Holographic and volume memories
Ching-Cherng Sun and Wei-Chia Su, "Three-Dimensional Shifting Selectivity of Random Phase Encoding in Volume Holograms," Appl. Opt. 40, 1253-1260 (2001)