Electrically turning periodic structures in cholesteric layer with conical-planar boundary conditions.

ABSTRACT: Electro-optical cell based on the cholesteric liquid crystal is studied with unique combination of the boundary conditions: conical anchoring on the one substrate and planar anchoring on another one. Periodic structures in cholesteric layer and their transformation under applied electric field are considered by polarizing optical microscopy, the experimental findings are supported by the data of the calculations performed using the extended Frank elastic continuum approach. Such structures are the set of alternating over- and under-twisted defect lines whose azimuthal director angles differ by [Formula: see text]. The [Formula: see text] and [Formula: see text]-defects of periodicity, which are the smooth transition between the defect lines, are observed at the edge of electrode area. The

SUBMITTER: Prishchepa O 

PROVIDER: S-EPMC8052423 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature