Inference of molecular orientation/ordering change nearby topological defects by the neural network function from the microscopic color information.

ABSTRACT: Topological defects in liquid crystals (LCs) dominate molecular alignment/motion in many cases. Here, the neural network (NN) function has been introduced to predict the LC orientation condition (orientation angle and order parameter) at local positions around topological defects from the phase/polarization microscopic color images. The NN function was trained in advance by using the color information of an LC in a planar alignment cell for different orientation angles and temperatures. The photo-induced changes of LC molecules around topological defects observed by the time-resolved measurement was converted into the image sequences of the orientation angle and the order parameter change. We found that each pair of brushes with different colors around topological defects showed different

SUBMITTER: Sakanoue H 

PROVIDER: S-EPMC8079417 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature