The liquid-crystal alignment properties of photolithographic gratings
- 15 September 1979
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 35 (6) , 444-446
- https://doi.org/10.1063/1.91166
Abstract
The liquid‐crystal alignment properties of gratings with a 1–10‐μm period are described. Experiments are presented to compare the roles of interfacial interactions and surface topography in determining alignment. It is shown that grooves are neither necessary nor always sufficient to produce alignment. Interfacial forces can give rise to strongly pinned alignment, governed by various biases applied during the first appearance of long‐range order at the interface.Keywords
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