Dual photopatterning of rotational fingerprint superstructures

Controlling architecture of hierarchical microstructures in liquid crystals[LCs]plays a crucial role in the development of novel soft-matter-based devices.Chiral LC fingerprints are considered as a prospective candidate for various applications;however,the efficient and real-time command of fingerprint landscapes still needs to be improved.Here,we achieve elabo-rate rotational fingerprint superstructures via dual photopatterning semifree chiral LC films,which combine the photo-alignment technique and a dynamic light patterning process.An intriguing spatial-temporal rotational behavior is presented during the patterning of chiral superstructures.This work opens new avenues for the applications of chiral LCs in soft actuators,sensing,and micromanufacturing.