Electric-field-induced nematic-cholesteric transition and 3-D director structures in homeotropic cells
arXiv:cond-mat/0512365 · doi:10.1103/PhysRevE.72.061707
Abstract
We study the phase diagram of director structures in cholesteric liquid crystals of negative dielectric anisotropy in homeotropic cells of thickness d which is smaller than the cholesteric pitch p. The basic control parameters are the frustration ratio d/p and the applied voltage U. Fluorescence Confocal Polarising Microscopy allows us to directly and unambiguously determine the 3-D director structures. The results are of importance for potential applications of the cholesteric structures, such as switchable gratings and eyewear with tunable transparency based.
Will be published in Physical Review E
References in corpus (1)
Cited by in corpus (24)
- Two-dimensional skyrmions and other solitonic structures in confinement-frustrated chiral nematics
- Review: Topology of solitons and singular defects in chiral liquid crystals
- Electrically driven dynamic three-dimensional solitons in nematic liquid crystals
- Theory of skyrmion states in liquid crystals: axisymmetric cholesteric bubbles (spherulites)
- Three dimensional optical manipulation and structural imaging of soft materials by use of laser tweezers and multimodal nonlinear microscopy
- Comparing skyrmions and merons in chiral liquid crystals and magnets
- Surface anchoring as a control parameter for stabilizing torons, skyrmions, twisted walls, fingers and their hybrids in chiral nematics
- Design of nematic liquid crystals to control microscale dynamics
- Theory of helicoids and skyrmions in confined cholesteric liquid crystals
- Realignment-enhanced coherent anti-Stokes Raman scattering (CARS) and three-dimensional imaging in anisotropic fluids
- Reversal of Helicoidal Twist Handedness Near Point Defects of Confined Chiral Liquid Crystals
- Commensurate States and Pattern Switching via Liquid Crystal Skyrmions Trapped in a Square Lattice
- Function spaces for liquid crystals
- Swelling cholesteric liquid crystal shells to direct colloids at the interface
- Sculpting liquid crystal skyrmions with external flows
- Alignment induced re-configurable walls for patterning and assembly of liquid crystal skyrmions
- Computing with Liquid Crystal Fingers: Models of geometric and logical computation
- Helicoids in chiral liquid crystals under external fields
- Multiple minimum energy paths and scenarios of unwinding transitions in chiral nematic liquid crystals
- Liquid crystal Skyrmions can swim
- Capillary and winding transitions in a confined cholesteric liquid crystal
- Unwinding of a cholesteric liquid crystal and bidirectional surface anchoring
- Light-controllable chiral dopant based on azo-fragment: synthesis and characterization
- Multiscale geometrical and topological learning in the analysis of soft matter collective dynamics