Journal
APPLIED PHYSICS LETTERS
Volume 103, Issue 15, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4824880
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Funding
- European Commission
- SFE
- Regione Calabria
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Defect lines arrays are created in liquid crystal exploiting periodic arrangements of twisted domains with opposite handedness. The defect lines self-organize in a planar cell guided by a polarization hologram recorded in one aligning substrate that provides planar periodic alignment. Depending on the relationship between the cell thickness d and the hologram pitch Lambda, the array period can be either Lambda or 2 Lambda. An external voltage enables to switch the spatial periodicity of the defect lines from 2 Lambda to Lambda and also to control their shape and location. A modeling of the observed twisted arrangements is reported. (C) 2013 AIP Publishing LLC.
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