Flexoelectric electro-optics of a cholesteric liquid crystal

Abstract
A linear electro-optic effect in a cholesteric liquid crystal is described and attributed to the flexoelectric effect. An electric field applied perpendicular to the helix axis rotates the director about an axis parallel to the field. This produces a periodic splay-bend pattern in the helix, which couples flexoelectrically to the field. DOI: http://dx.doi.org/10.1103/PhysRevLett.58.1538 © 1987 The American Physical Society

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