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Measurement of flexoelectric coefficients in nematic liquid crystals using shallow grating devices

Abstract:

A nematic device with a shallow grating and homeotropic anchoring is used to probe the flexoelectric effect. Applying a sinusoidally varying voltage across the cell, the transmittance of the device between crossed polarisers is found to consist of a mixture of 1st and 2nd harmonics, corresponding to the flexoelectric and dielectric responses of the director to the applied electric field. The results are compared with theoretical ones generated using a 1-dimensional approximation to the cell s...

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Publisher copy:
10.1080/15421400590955839

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Journal:
Molecular Crystals and Liquid Crystals
Volume:
436
Publication date:
2005-01-01
DOI:
EISSN:
1563-5287
ISSN:
1542-1406
URN:
uuid:7d378060-bae6-4f87-b933-6f17798805f3
Source identifiers:
116735
Local pid:
pubs:116735
Language:
English
Keywords:

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