Polarity-directed analog electro-optic switching in a low-polarization chiral smectic liquid crystal with positive dielectric anisotropy | Zendy

Jan P. F. Lagerwall | Zendy; Alexander A. Kane | Zendy; Noel A. Clark | Zendy; David M. Walba | Zendy

Open Access

Polarity-directed analog electro-optic switching in a low-polarization chiral smectic liquid crystal with positive dielectric anisotropy

Author(s) -

Jan P. F. Lagerwall,

Alexander A. Kane,

Noel A. Clark,

David M. Walba

Publication year - 2004

Publication title -

physical review e

Language(s) - English

Resource type - Journals

eISSN - 1550-2376

pISSN - 1539-3755

DOI - 10.1103/physreve.70.031703

Subject(s) - liquid crystal , materials science , ferroelectricity , dielectric , polarization (electrochemistry) , anisotropy , polarity (international relations) , condensed matter physics , polarity reversal , coupling (piping) , chemical physics , optoelectronics , optics , chemistry , physics , composite material , biochemistry , quantum mechanics , voltage , cell

We describe an analog electro-optic (EO) switching mechanism occurring in thin cells filled with a low-polarization ferroelectric liquid crystal mixture with positive dielectric anisotropy. The mixture is composed of an achiral nonpolar smectic-C (Sm-C) host doped with a small amount of a commercially available unichiral compound. The switching mechanism provides analog EO behavior, and thus could be attractive for information display applications. The process is polarization-driven for weak fields, while for higher field strength the dielectric coupling dominates the process.

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