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Journal ArticleDOI

Angle-multiplexed storage of 5000 holograms in lithium niobate.

Fai H. Mok
- 01 Jun 1993 - 
- Vol. 18, Iss: 11, pp 915-917
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TLDR
As many as 5000 holograms of high-resolution images have been stored within a single crystal of Fe:LiNbO3 using fracture-space multiplexing to increase the storage bandwidth.
Abstract
As many as 5000 holograms of high-resolution images (320 × 220 pixels) have been stored within a single crystal of Fe:LiNbO3. The nominal angle between the reference beam and the object beam was 90°. Fractal-space multiplexing was used to increase the storage bandwidth.

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Citations
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Journal ArticleDOI

Volume Holographic Storage and Retrieval of Digital Data

TL;DR: A multiple page fully digital holographic data storage system is demonstrated, used to store and retrieve digital image and compressed video data with a photorefractive crystal.
Journal ArticleDOI

Encrypted optical memory system using three-dimensional keys in the Fresnel domain.

TL;DR: Encryption and decryption of optical memory in a LiNbO(3) :Fe photorefractive crystal by use of angular multiplexing is demonstrated.
Patent

Matrices with memories and uses thereof

TL;DR: In this paper, a matrix with memories (MVM) is defined, which is a combination of matrix materials, memories, and linked molecules and biological materials that are encoded with an optically readable code.
Patent

Remotely programmable matrices with memories

TL;DR: Combinations of matrix materials, memories, and linked molecules and biological materials are also provided in this article, which have a multiplicity of applications, including combinatorial chemistry, isolation and purification of target macromolecules, capture and detection of macromoles for analytical purposes, selective removal of contaminants, enzymatic catalysis, chemical modification and other uses.
Journal ArticleDOI

Holographic Data Storage Systems

TL;DR: Fundamental issues underlying holographic data storage: grating formation, recording and readout of thick and thin holograms, multiplexing techniques, signal-to-noise ratio considerations, and read out techniques suitable for conventional, phase conjugate, and associative search data retrieval are discussed.
References
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Journal ArticleDOI

Optical implementation of the Hopfield model.

TL;DR: Numerical and experimental results presented show that the approach is capable of introducing accuracy and robustness to optical processing while maintaining the traditional advantages of optics, namely, parallelism and massive interconnection capability.
Journal ArticleDOI

Holographic pattern fixing in electro‐optic crystals

TL;DR: In this paper, the results of an investigation into techniques for obtaining erasure resistant holograms in electro-optic crystals were described, and the most successful approach made use of thermally activated ionic drift during or after recording.
Journal ArticleDOI

Storage of 500 high-resolution holograms in a LiNbO 3 crystal

TL;DR: High-resolution, uniformly diffracting volume holograms in a single Fe-doped LiNbO(3) crystal are recorded by angularly multiplexing a plane-wave reference beam to compute exposure schedules.
Journal ArticleDOI

Fe-Doped LiNbO(3) for Read-Write Applications.

TL;DR: High erase sensitivity is observed in heavily reduced crystals of Fe-doped LiNbO(3) and these results are shown to be consistent with an extremely low density of Fe(3+) ions.
Journal ArticleDOI

Energy efficiency of optical interconnections using photorefractive holograms

TL;DR: This work proposes and demonstrates the use of a Fourier transform to achieve maximum energy efficiency in a photorefractive optical interconnection and presents the results of experimental investigations on reconfigurable optical interconnections using photoreFractive holograms in a barium titanate crystal.
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