Transient observations of field-induced nematic-cholesteric relaxation

We have found that the relaxation process in the electric-field-induced cholesteric-nematic transition depends upon sample boundary conditions. Homeotropic samples exhibit a delay time, followed by nucleation of the decay sequence about isolated surface defects. Transient capacitance measurements an...

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Bibliographic Details
Published in:Applied physics letters 1973-01, Vol.23 (6), p.290-292
Main Authors: Kashnow, R. A., Bigelow, J. E., Cole, H. S., Stein, C. R.
Format: Article
Language:English
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Summary:We have found that the relaxation process in the electric-field-induced cholesteric-nematic transition depends upon sample boundary conditions. Homeotropic samples exhibit a delay time, followed by nucleation of the decay sequence about isolated surface defects. Transient capacitance measurements and cinemicrophotography of this process are reported for the first time.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.1654892