High throughput technique for characterizing liquid crystal alignment in complex geometries

E. G. Edwards, T. S. Taphouse, S. L. Cornford, S. C. Kitson

Research output: Contribution to journalArticle (Academic Journal)peer-review

1 Citation (Scopus)

Abstract

We present a high throughput technique for characterizing liquid crystal electro-optic devices. We show that the optical transmission as a function of incident light polarization for an untwisted nematic device doped with dichroic dye can be simulated as a birefringent slab with uniform tilt and azimuthal alignment angles. Although the actual liquid crystal alignment may be more complex, these slab angles provide the basis of a rapid assessment technique. Implementation of the experiment using machine vision allows many measurements to be made in parallel and so very high throughput characterization of devices is possible.

Original languageEnglish
Article number021104
JournalApplied Physics Letters
Volume96
Issue number2
DOIs
Publication statusPublished - 25 Jan 2010

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