Correlations between surface and bulk liquid-crystal alignment observed with optical second-harmonic generation
- 1 October 1992
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 46 (8), R4490-R4493
- https://doi.org/10.1103/physreva.46.r4490
Abstract
With the use of optical second-harmonic generation from liquid-crystal (LC) monolayers adsorbed on rubbed polymer surfaces, a close correlation between the rubbing-induced azimuthal orientation distribution of the LC monolayers and the resulting LC bulk pretilt angle has been observed. A simple model based on epitaxial growth of the bulk LC on top of the first LC monolayer is proposed to explain this correlation.Keywords
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