Title

Correlations between liquid crystal director reorientation and optical response time of a homeotropic cell

Authors

Authors

H. Y. Wang; T. X. Wu; X. Y. Zhu;S. T. Wu

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

J. Appl. Phys.

Keywords

MODULATORS; Physics, Applied

Abstract

Correlations between the director reorientation time and its consequent optical response time (both decay and rise) of a homeotropic liquid crystal (LC) cell under crossed polarizers are derived theoretically based on small angle approximation. Results indicate that the optical response time is linearly proportional to the LC director reorientation time and is weakly dependent on the initial bias voltage. To validate the derived correlations, transient phase and transmittance responses at various bias voltages are analyzed numerically by solving the Erickson-Leslie equation. Pretilt angle is found to make an important contribution to the optical response time. Gray scale switching of the homeotropic cell is also investigated. (C) 2004 American Institute of Physics.

Journal Title

Journal of Applied Physics

Volume

95

Issue/Number

10

Publication Date

1-1-2004

Document Type

Article

Language

English

First Page

5502

Last Page

5508

WOS Identifier

WOS:000221269300037

ISSN

0021-8979

Share

COinS