Dataset 1: Robust measurement of flexoelectro-optic switching with different surface alignments

All data was taken and processed in MATLAB The alignment of chiral nematic liquid crystals in the so-called uniform lying helix geometry allows for the observation and exploitation of the flexoelectro-optic effect. However, high-quality uniform lying helix alignment is difficult to achieve reliably, and this can potentially impact the accuracy of the measurements made on the flexoelectro-optic switching behaviour. Here we show that, using an appropriate method, it is possible to make measurements of the flexo-electric coefficients which are not substantially influenced by the alignment quality.

所有数据均通过MATLAB采集并处理。手性向列相液晶（chiral nematic liquid crystals）在所谓均匀平卧螺旋几何构型下的取向，可实现挠曲电光学效应（flexoelectro-optic effect）的观测与利用。然而，高质量的均匀平卧螺旋取向难以稳定实现，这可能会对挠曲电光学开关行为的测量精度产生潜在影响。本文研究表明，通过恰当的方法，可实现不受取向质量显著影响的挠曲电系数（flexo-electric coefficients）测量。