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Liquid crystal (LC) microlens could be a new type of micro optical components driven by an optical field. In this study, formation behavior of LC microlens was explored by doping several fluorescent dyes to reduce photo-thermal effect. Among the dyes, coumarin derivative-doped LC system showed lens effect with polarization selectivity.
Liquid crystalline (LC) molecules are known to reorient parallel to the light polarization when irradiated by linearly polarized light (a phenomenon known as light induced Frederiks transition). Dye‐doped LCs exhibit significantly enhanced photoinduced reorientation compared to undoped LCs. Although the reorientation behavior has been interpreted as a phenomenon based on interaction between the dye...
Crosslinked liquid‐crystalline polymer fibers containing azobenzene moieties show three‐dimensional movements under photoirradiation (see figure). The direction of the photomobility of the fibers could be controlled by manipulating the actinic light source. The generated stress upon photoinduced bending reached 210 kPa, which is similar to the stress in human muscles.
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