Picture of two heads

Open Access research that challenges the mind...

The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including those from the School of Psychological Sciences & Health - but also papers by researchers based within the Faculties of Science, Engineering, Humanities & Social Sciences, and from the Strathclyde Business School.

Discover more...

Surface evanescent field characterisation of antiferroelectric liquid crystals

Beccherelli, B. and Judge, L.A. and Mottram, N.J. and Elston, S.J. (2001) Surface evanescent field characterisation of antiferroelectric liquid crystals. Molecular Crystals and Liquid Crystals, 358 (1). pp. 263-274. ISSN 1542-1406

Full text not available in this repository. (Request a copy from the Strathclyde author)

Abstract

In this paper we report a study of the dynamics of antiferroelectric liquid crystals by using simultaneous total internal reflection and transmission. In devices having both substrates coated with a polyimide, but only one rubbed, we found that the optic axis of the liquid crystal region close to the unrubbed substrate deviates from the rubbing direction less than the bulk. In switching experiments we find that this region is also slower then the bulk and it is virtually free from the undesired pretransitional effect. We also found an asymmetry in the switching of the surface region and we use a simple model to account for it.