Enhancing Birefringence by Doping Fluorinated Phenyltolanes

Author

Gauza, Sebastian ; Zhao, Yang ; Le Cor, Tatiana ; Wu, Shin-Tson ; Dziaduszek, Jerzy ; Sasnouski, Genadz ; Dabrowski, Roman ; Chien, Liang-Chy

Author_Institution

Coll. of Opt. & Photonics, CREOL, Orlando, FL

Volume

2

Issue

4

fYear

2006

Firstpage

327

Lastpage

332

Abstract

We have designed, synthesized, and evaluated the physical properties of some high birefringence (Deltan) isothiocyanato phenyltolane and quaterphenyl liquid crystals. These compounds exhibit Deltan~0.48-0.52 at room temperature and wavelength lambda=633 nm. Laterally substituted short alkyl chains and fluorine atom eliminate smectic phase and lower the melting temperature. The moderate melting temperature and very high clearing temperature make those compounds attractive for eutectic mixture formulation. These compounds can be used as dopants for color-sequential liquid crystal displays or eutectic mixtures for laser beam steering

Keywords

birefringence; eutectic structure; liquid crystals; melting point; birefringence; color-sequential liquid crystal displays; eutectic mixture formulation; fluorinated phenyltolanes; isothio-cyanato phenyltolane; laser beam steering; quaterphenyl liquid crystals; Beam steering; Birefringence; Delay; Doping; Liquid crystal displays; Liquid crystals; Optical arrays; Optical filters; Phased arrays; Temperature; Eutectic mixtures; high birefringence; liquid crystals; phenyltolane isothiocyanates; quaterphenyl isothiocyanates;

fLanguage

English

Journal_Title

Display Technology, Journal of

Publisher

ieee

ISSN

1551-319X

Type

jour

DOI

10.1109/JDT.2006.885160

Filename

4016015