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Applied Optics

Applied Optics


  • Vol. 38, Iss. 29 — Oct. 10, 1999
  • pp: 6184–6189

Pixelated liquid-crystal light valve for neural network application

Neil Collings, Ali R. Pourzand, Fedor L. Vladimirov, Nina I. Pletneva, and Aleksander N. Chaika  »View Author Affiliations

Applied Optics, Vol. 38, Issue 29, pp. 6184-6189 (1999)

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The liquid-crystal light valve (LCLV) is a useful component for performing integration, thresholding, and gain functions in optical neural networks. Integration of the neural activation channels is implemented by pixelation of the LCLV, with use of a structured metallic layer between the photoconductor and the liquid-crystal layer. Measurements are presented for this type of valve, examples of which were prepared for two specific neural network implementations. The valve fabrication and measurement were carried out at the State Optical Institute, St. Petersburg, Russia, and the modeling and system applications were investigated at the Institute of Microtechnology, Neuchâtel, Switzerland.

© 1999 Optical Society of America

OCIS Codes
(070.1170) Fourier optics and signal processing : Analog optical signal processing
(130.3120) Integrated optics : Integrated optics devices
(160.3710) Materials : Liquid crystals
(200.4260) Optics in computing : Neural networks
(230.3720) Optical devices : Liquid-crystal devices
(230.6120) Optical devices : Spatial light modulators
(250.0250) Optoelectronics : Optoelectronics

Original Manuscript: February 4, 1999
Revised Manuscript: July 1, 1999
Published: October 10, 1999

Neil Collings, Ali R. Pourzand, Fedor L. Vladimirov, Nina I. Pletneva, and Aleksander N. Chaika, "Pixelated liquid-crystal light valve for neural network application," Appl. Opt. 38, 6184-6189 (1999)

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