Electric-field-induced motion of polymer cholesteric liquid-crystal flakes in a moderately conductive fluid.

@article{Kosc2002ElectricfieldinducedMO,
  title={Electric-field-induced motion of polymer cholesteric liquid-crystal flakes in a moderately conductive fluid.},
  author={Tanya Z. Kosc and Kenneth L. Marshall and Stephen D. Jacobs and John C. Lambropoulos and Sadeg M. Faris},
  journal={Applied optics},
  year={2002},
  volume={41 25},
  pages={5362-6}
}
Polymer cholesteric liquid-crystal flakes suspended in a fluid with nonnegligible conductivity can exhibit motion in the presence of an ac electric field. The plateletlike particles with a Grandjean texture initially lie parallel to the cell substrates and exhibit a strong selective reflection that is diminished or extinguished as the flakes move. Flake motion was seen within a specific frequency bandwidth in an electric field as low as 5 mV(rms)/microm. Flakes reoriented about their longest… CONTINUE READING

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