This research explores innovative methods for controlling the orientation, macrostructure, and optical properties of liquid crystals (LCs) to advance their applications in technology and materials science. By leveraging photo-orientation techniques on chalcogenide surfaces, we demonstrate the ability to create spatially modulated structures and phase delay distributions, enabling the development of optical devices like Gaussian-shaped lenses. Additionally, the study investigates the manipulation of topological defects in nematic LCs to control and mobilize microparticles, providing a foundation for dynamic applications in optical systems and material handling. These findings offer significant advancements in both theoretical understanding and practical utilization of liquid crystal systems.
The seminar will be chaired by Hynek Němec, Department of Dielectrics.