Three-dimensional shifting selectivity of random phase encoding in volume holograms.

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.

[1]  D Timucin,et al.  Multilayer volume holographic optical memory. , 1999, Optics letters.

[2]  D Psaltis,et al.  Shift multiplexing with spherical reference waves. , 1996, Applied optics.

[3]  L Hesselink,et al.  Volume Holographic Storage and Retrieval of Digital Data , 1994, Science.

[4]  Ching-Cherng Sun,et al.  Encryption-selectable optical storage in LiNbO3 , 1999, Optics + Photonics.

[5]  F T Yu,et al.  Submicrometer displacement sensing using inner-product multimode fiber speckle fields. , 1993, Applied optics.

[6]  B Wang,et al.  Shift-tolerance property of an optical double-random phase-encoding encryption system. , 2000, Applied optics.

[7]  Ching-Cherng Sun,et al.  Temperature dependence of two-beam coupling and dark decay in photorefractive BaTiO3 , 1996 .

[8]  D. White,et al.  Coded multiple exposure holograms. , 1968, Applied optics.

[9]  Theo T. Tschudi,et al.  Volume hologram multiplexing using a deterministic phase encoding method , 1991 .

[10]  Ching-Cherng Sun,et al.  Random phase-coded multiplexing in LiNbO3 for volume hologram storage by using a ground glass , 1996, Electronic Imaging.

[11]  B Javidi,et al.  Encrypted optical memory system using three-dimensional keys in the Fresnel domain. , 1999, Optics letters.

[12]  Vladimir B. Markov,et al.  3D speckle-shift hologram and its storage capacity , 1999, Iberoamerican Meeting of Optics and the Latin American Meeting of Optics, Lasers and Their Applications.

[13]  P. J. van Heerden,et al.  Theory of Optical Information Storage in Solids , 1963 .

[14]  Emmett N. Leith,et al.  Holographic data storage in three-dimensional media. , 1966, Applied optics.

[15]  V. B. Markov,et al.  Spatial-angular selectivity of 3-D speckle-wave holograms and information storage , 1997 .

[16]  Sang Kyu Jin,et al.  Experimental study of volume holographic interconnects using random patterns , 1993 .

[17]  Ching-Cherng Sun,et al.  Diffraction selectivity of holograms with random phase encoding , 2000 .

[18]  B Javidi,et al.  Optical image encryption based on input plane and Fourier plane random encoding. , 1995, Optics letters.

[19]  G Unnikrishnan,et al.  Optical encryption system that uses phase conjugation in a photorefractive crystal. , 1998, Applied optics.

[20]  Demetri Psaltis.  Holographic memories , 1996, International Commission for Optics.