Surface evanescent field characterisation of antiferroelectric liquid crystals

B. Beccherelli, L.A. Judge, N.J. Mottram, S.J. Elston

Research output: Contribution to journalArticle

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.
LanguageEnglish
Pages263-274
Number of pages11
JournalMolecular Crystals and Liquid Crystals
Volume358
Issue number1
DOIs
Publication statusPublished - 2001

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Evanescent fields
Liquid Crystals
Liquid crystals
liquid crystals
Substrates
polyimides
Polyimides
Optics
asymmetry
optics
Experiments
Direction compound

Keywords

  • antiferroelectric liquid crystals
  • total internal reflection
  • surface evanescent field
  • high quality alignment
  • liquid crystals

Cite this

Beccherelli, B. ; Judge, L.A. ; Mottram, N.J. ; Elston, S.J. / Surface evanescent field characterisation of antiferroelectric liquid crystals. In: Molecular Crystals and Liquid Crystals. 2001 ; Vol. 358, No. 1. pp. 263-274.
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Surface evanescent field characterisation of antiferroelectric liquid crystals. / Beccherelli, B.; Judge, L.A.; Mottram, N.J.; Elston, S.J.

In: Molecular Crystals and Liquid Crystals, Vol. 358, No. 1, 2001, p. 263-274.

Research output: Contribution to journalArticle

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T1 - Surface evanescent field characterisation of antiferroelectric liquid crystals

AU - Beccherelli, B.

AU - Judge, L.A.

AU - Mottram, N.J.

AU - Elston, S.J.

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KW - total internal reflection

KW - surface evanescent field

KW - high quality alignment

KW - liquid crystals

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DO - 10.1080/10587250108028286

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