| |
 |
UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-23 18:02 |
 |
|
|
|
Conference: Bucharest University Faculty of Physics 2023 Meeting
Section: Polymer Physics
Title:
On the Effect of External Fields on Liquid Crystal Alignment at Liquid-Solid Interfaces: A Monte Carlo Approach
Authors:
Catalin BERLIC(1), Cristina MIRON(1), Valentin BARNA(1)
Affiliation:
1) University of Bucharest, Faculty of Physics, 405 Atomistilor Street, 077125, Magurele, Romania
E-mail
cataliniulian.berlic@g.unibuc.ro
Keywords:
liquid crystal alignment, liquid-solid interfaces, Monte Carlo simulation, surface anchoring, director orientation, light transmission
Abstract:
We employ Monte Carlo simulations to investigate the effect of external fields on liquid crystal alignment at liquid-solid interfaces. Our simulation methodology incorporates realistic intermolecular potentials and considers the presence of an electric field. We focus on the interactions between liquid crystal molecules, the substrate surface, and the external field, aiming to unravel the underlying mechanisms governing liquid crystal alignment. By systematically varying the strength and orientation of the external field, we examine the resulting changes in liquid crystal ordering, anchoring behavior, and alignment structures at the liquid-solid interface. We analyze various alignment metrics, including surface anchoring strength, director orientation, and layering properties, to characterize the alignment response of liquid crystals under the influence of external fields. Our simulation methodology combines the Monte Carlo simulation technique with a light propagation model, incorporating the interaction of light with liquid crystal molecules. We consider the optical anisotropy of liquid crystals and the influence of alignment at liquid-solid interfaces on light transmission. By systematically varying the parameters such as liquid crystal alignment, external field strength and orientation, and incident light properties, we examine the impact on light transmission characteristics, including transmission intensity, polarization, and spatial distribution. We analyze the influence of alignment-induced birefringence, surface anchoring, and field-induced reorientation on the optical behavior of liquid crystal systems.
|
|
|
|