NASA NTRS · 19890000399
Optical Processing With Photorefractive Semiconductors
Abstract
Experimental 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.
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Cheng, Li-Jen, Gheen, Gregory. 1989-08-01. Optical Processing With Photorefractive Semiconductors. https://ntrs.nasa.gov/citations/19890000399
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