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Unwinding of the uniform lying helix structure in cholesteric liquid crystals next to a spatially uniform aligning surface

Abstract:

The symmetry of the cholesteric uniform lying helix (ULH) structure, where the helix axis is aligned in a single direction parallel to the device substrates, is not compatible with a uniform surface alignment and an unwinding of the helical structure is expected at the interface. Fluorescence confocal polarizing microscopy experiments are performed on the interface between a bulk ULH and a uniform aligning surface (for both planar and homeotropic alignments). The results are analyzed in the f...

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Publication status:
Published

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Publisher copy:
10.1103/PhysRevE.80.041707

Authors


Salter, PS More by this author
Carbone, G More by this author
Jewell, SA More by this author
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Engineering Science
Journal:
PHYSICAL REVIEW E
Volume:
80
Issue:
4
Publication date:
2009-10-05
DOI:
EISSN:
1550-2376
ISSN:
1539-3755
URN:
uuid:d8fbc4c2-e1a4-45fb-98cc-e697e373d001
Source identifiers:
63693
Local pid:
pubs:63693

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