New Method for Analysis of Liquid Crystal Elasticity

• Authors: A. Walczak
• Languages of publication: EN

Abstracts

EN

Orientational elastic constant k_{11}, k_{33} and k_{13} of liquid crystals are determined by a new way. Liquid crystalline waveguide is applied to measure refractive index profile across the waveguide layer. Results of the measurements allow one to find local director field within the liquid crystalline layer. Director field is applied to transform the Frank-Oseen equations into a form of an overdetermined algebraic system of equations with elastic constants as unknown variables. A solution of those equations has been found by the orthogonal decomposition method. Elastic constants for nematic mixture, W602, and main component of it, 6CHBT (4-trans-4-n-hexyl-cyclohexyl-isothiocyanatobenzene), have been obtained as well as anchoring energy values

Keywords

EN

61.30.Gd

Discipline

• 61.30.Gd: Orientational order of liquid crystals; electric and magnetic field effects on order

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1998
• Volume: 94
• Issue: 5-6
• Pages: 803-812

Dates

published

1998-11

received

1998-07-15

(unknown)

1998-09-22

Contributors

author

A. Walczak

• Institute of Applied Physics, Military University of Technology, Kaliskiego 2, 01-489 Warsaw, Poland

Identifiers

DOI

10.12693/APhysPolA.94.803