Search Results (2)
Liquid-crystal microdroplets as optical microresonators and lasers
This thesis investigates the use of single liquid-crystal droplets as optical microresonators and lasers. We have shown that liquid-crystal droplets can support a number of different optical modes that can be excited by introducing a fluorescent dye in the liquid crystal material and using an external excitation source of light. …
Colloidal Interactions and Novel Colloidal Structures in Thin Nematic Layers
The thesis presents experimental studies of colloidal interactions and novel colloidal structures in confined nematic liquid crystal using optical tweezers. Liquid crystal colloids are a novel class of composite materials with well-controlled periodic structures in the nanometer and micrometer ranges. Moreover, they also posses novel mechanical, optical and rheological properties, …