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Optical Processing With Photorefractive SemiconductorsExperimental phase-conjugate four-wave-mixing apparatus used to demonstrate capabilities of GaAs (and potentially of other photorefractive semiconductors like InP and CdTe) for optical processing of information. With modifications, performs any of three basic image-processing functions: transfer to different light beam, enhancement of edges, and autocorrelation. Includes crystal of GaAs of 5 by 9 by 9 mm with cubic crystalline axes. Advantages include high speed and compatibilty with other semiconductor devices.
Document ID
19890000399
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Cheng, Li-Jen
(Caltech)
Gheen, Gregory
(Caltech)
Date Acquired
August 14, 2013
Publication Date
August 1, 1989
Publication Information
Publication: NASA Tech Briefs
Volume: 13
Issue: 8
ISSN: 0145-319X
Subject Category
Physical Sciences
Report/Patent Number
NPO-17324
Accession Number
89B10399
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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