| 초록 |
We have shown the perfect ordering of toroidal domains with a very long range positional order and the direct observations of toroidal topology of smectic liquid crystal droplet on hydrophilic planar surface. Our experimental results show that the domain morphology, periodicity and ordering of the LCs are strongly influenced by the channel geometry. It would be possible to use this ordered toroidal domains not only for understanding topological transformations from isotropic to Sm focal phases, but also for the potential applications such as micro-pattering, bio-sensor, and particle trapper with sizes. This method opens the possibility for exploiting the unique optical and rheological properties associated with novel behaviors to making new materials. For example, the control of the shape, size, and spatial arrangement of the defects and very uniformly repeated morphology at the mesoscale suggests applications in patterning, bio-membrane, and template. |
