Content-addressable data storage by use of volume holograms
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Recording Ultra-Realistic Full-Color Analog Holograms for Use in a Moving Hologram Display
Published on: January 14, 2020
G W Burr1, S Kobras, H Hanssen
1IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120, USA. burr@almaden.ibm.com
Abstract:
Data stored as volume holograms--optical interference patterns imprinted into a photosensitive storage material--can be accessed both by address and by content. An optical correlation-based search compares each input query against all stored records simultaneously, a massively parallel but inherently noisy analog process. With data encoding and signal postprocessing we demonstrate a holographic content-addressable data-storage system that searches digital data with high search fidelity.
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