Fig. 2: Localized generation of directrons.
Crossed polarized optical microscopy (POM) images of the sample with the projected light (a) off and (b) on at U = 15.2 V and f = 30 Hz. Scale bars, 200 µm. c The movement of directrons is confined by various light-actuated patterns, including the alphabets ‘X’, ‘M’, ‘U’, and the Chinese characters ‘厦‘, ‘门‘, ‘大‘, ‘学‘ (Xiamen University). Scale bar, 200 µm. n0 denotes the alignment direction, and E indicates the electric field perpendicular to the xy plane. Simulated electric potential distribution for the LC layer on the (d) xz cut plane and (e) xy cut plane (z = 5 μm) of a square pattern driven at U = 16 V. (f) Plot of the simulated electric potential along a cross-sectional line at z = 5 μm, as indicated by the dashed line in (d).
