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Proceedings Paper

Optical Logic Gates Using Ferroelectric Liquid Crystals
Author(s): Laura A. Pagano-Stauffer; Kristina M. Johnson; Noel Clark; Mark Handschy
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Paper Abstract

Ferroelectric liquid crystal (FLC) compounds are investigated for use in optical parallel processing. Spatial light modulators using the smectic C phase FLC's show better contrast ratio, faster switching speeds, and lower cost than twisted nematic liquid crystal spatial light modulators. In this paper we present measurements of characteristic parameters of FLC's, and demonstrate a new optical logic gate capable of performing fourteen Boolean logic operations using single cell FLC devices with photographic masks as inputs. The XOR and XNOR Boolean functions can be achieved by cascading together several optical logic gates. Recent results using 32 x 32 FLC matrix arrays demonstrate an OR gate which has programmable inputs.

Paper Details

Date Published: 19 December 1986
PDF: 8 pages
Proc. SPIE 0684, Liquid Crystals and Spatial Light Modulator Materials, (19 December 1986); doi: 10.1117/12.936484
Show Author Affiliations
Laura A. Pagano-Stauffer, University of Colorado (United States)
Kristina M. Johnson, University of Colorado (United States)
Noel Clark, University of Colorado (United States)
Mark Handschy, University of Colorado (United States)


Published in SPIE Proceedings Vol. 0684:
Liquid Crystals and Spatial Light Modulator Materials
William A. Penn, Editor(s)

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