Holographic storage and associative processing of analog and digital data

K. G. Richling, P. A. Mitkas, S. Mailis, L. Boutsikaris, N. A. Vainos

Research output: Contribution to journalConference articlepeer-review


A multiplexed volume holographic associative memory is developed for storing and searching alphanumeric database records. The system uses Fe:LiNbO3 as the storage medium and operates in three modes: the recording mode, when data pages are loaded on the spatial light modulator (SLM) and written in crystal; the addressed-based retrieval mode, when a certain page is chosen and retrieved with the reference beam incident on the crystal at a given angle; and the content-based retrieval mode. In the latter mode, the crystal is illuminated by a pattern loaded on the SLM and CCD2 receives the reconstructed reference beam profile. The system can support the use of mixed data types and can perform content-based searches based on any data type.

Original languageEnglish
Pages (from-to)132-133
Number of pages2
JournalConference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS
Publication statusPublished - 1997
Externally publishedYes
EventProceedings of the 1997 10th IEEE Lasers and Electro-Optics Society Annual Meeting, LEOS. Part 2 (of 2) - San Francisco, CA, USA
Duration: 10 Nov 199713 Nov 1997


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