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American Institute of Physics, Applied Physics Letters, 11(96), p. 113503

DOI: 10.1063/1.3357420

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Periodic anchoring condition for alignment of a short pitch cholesteric liquid crystal in uniform lying helix texture

Journal article published in 2010 by Gurumurthy Hegde ORCID, Lachezar Komitov
This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

Due to flexoelectricity, a cholesteric liquid crystal unidirectionally aligned in a sandwich cell, with its helix lying parallel to the confining cell substrates, exhibit a flexoelectro-optic response when subjected to an electric field applied perpendicular to the helix axis. The clarity of the flexoelectro-optic response is dependent on the quality of the uniformly lying helix texture of the cholesteric which often is difficult to achieve. Herein, a method for alignment of a short pitch cholesteric in such a texture by means of a periodic surface anchoring condition with periodicity matching that of the cholesteric liquid crystal is described.