Fig. 3: Inplane electro-optics of 1 with an anti-parallel field.
From: Ferri- and ferro-electric switching in spontaneously chiral polar liquid crystals
a POM images of compound 1 at 75 °C in the \({{{\rm{SmC}}}}_{{{\rm{P}}}}^{{{\rm{H}}}}\) phase in an IPS cell under applied field. The horizontal dashed lines indicate the limits of the active area, while the vertical dashed arrow indicates the electric field direction. The cell is 5.5 μm thick with parallel rubbed planar alignment. The gap between the two electrodes is 100 μm and the DC field is initially applied anti-parallel the the initial polarisation state. For all POM images, polarisor axes and rubbing direction are marked by the blue, purple and black arrows, respectively. b Schematic diagrams of the different states in the switching profile are shown for the IPS cell as described in the text. Only half the pitch length is shown for the helical states.
