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Proceedings Paper

Light Transmission And Scattering Of Polymer Dispersed Liquid Crystals
Author(s): Joe B. Whitehead Jr.; Slobodan Zumer; William Doane
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Paper Abstract

The light transmission and scattering properties of a PDLC light shutter in the transparent (field applied) state are studied. It is found from transmission experiments of samples containing sub-micron size droplets that there is a broad distribution of about 10° about the field direction in droplet alignment, even in saturating fields. Evidence is presented that this distribution is principally caused by the non-spherical shape of the droplets. Measurements of the total scattering cross section imply that even in the transparent state there exists some multiple scattering or interdroplet scattering effects. Transmission and scattering measurements in samples with supra micron size droplets show effects of anomalous diffraction and are sensitive to distributions in droplet size. The theory of scattering from a nematic droplet in the anomalous diffraction regime agrees favorably with experiment.

Paper Details

Date Published: 25 July 1989
PDF: 8 pages
Proc. SPIE 1080, Liquid Crystal Chemistry, Physics, and Applications, (25 July 1989); doi: 10.1117/12.976426
Show Author Affiliations
Joe B. Whitehead Jr., Kent State University (United States)
Slobodan Zumer, E. Kardelj University of Ljubljana (Yugoslavia)
William Doane, Kent State University (United States)

Published in SPIE Proceedings Vol. 1080:
Liquid Crystal Chemistry, Physics, and Applications
J. William Doane; Zvi Yaniv, Editor(s)

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