Hologram characterization in an optical memory experiment using photorefractive LiNbO3
Abstract
The design and performance characteristics of a computer interfaced optical memory system that utilizes holographic storage in photorefractive LiNbO3 crystals are examined. An observed resolution limit of 145 microns (at 31 cm beyond the hologram) agrees closely with a 155-micron limit estimate based on spatial filtering and diffraction considerations. Angular and wavelength indexing are compared. A 3-D storage density limit of 10 to the 10th bit/cu cm is estimated for angular indexing with the viewing angle optimized.
- Publication:
-
Applied Optics
- Pub Date:
- March 1980
- DOI:
- Bibcode:
- 1980ApOpt..19..812W
- Keywords:
-
- Computer Components;
- Holography;
- Lithium Niobates;
- Optical Memory (Data Storage);
- Photographic Recording;
- Refractivity;
- Crystal Optics;
- Design Analysis;
- Infrared Radiation;
- Performance Prediction;
- Spatial Filtering;
- Wave Diffraction;
- Instrumentation and Photography;
- HOLOGRAPHY