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Proceedings Paper

Optical correlation using a phase-only liquid-crystal-over-silicon spatial light modulator
Author(s): Duncan J. Potter; Michael J. Ranshaw; Adil O. Al-Chalabi; Norman E. Fancey; Richard M. Sillitto; David G. Vass
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Paper Abstract

The construction and principle of operation of a liquid-crystal-over an MOS- array spatial light modulator (SLM) is described. Photographs are presented of patterns produced by amplitude-only modulation of monochromatic light by the SLM when used in a coherently illuminated imaging system. Optical Fourier transforms of phase patterns, which reveal the phase variations, are included. The use of the 16 X 16 pixel array as a pure-phase filter is discussed, and the results of correlation experiments are presented.

Paper Details

Date Published: 1 November 1991
PDF: 10 pages
Proc. SPIE 1564, Optical Information Processing Systems and Architectures III, (1 November 1991); doi: 10.1117/12.49725
Show Author Affiliations
Duncan J. Potter, Univ. of Edinburgh (United Kingdom)
Michael J. Ranshaw, Univ. of Edinburgh (United Kingdom)
Adil O. Al-Chalabi, Univ. of Edinburgh (United Kingdom)
Norman E. Fancey, Univ. of Edinburgh (United Kingdom)
Richard M. Sillitto, Univ. of Edinburgh (United Kingdom)
David G. Vass, Univ. of Edinburgh (United Kingdom)

Published in SPIE Proceedings Vol. 1564:
Optical Information Processing Systems and Architectures III
Bahram Javidi, Editor(s)

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