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Two-dimensional snapshot measurement of surface variation of anchoring in liquid crystal cells

Two-dimensional snapshot measurement of surface variation of anchoring in liquid crystal cells
Two-dimensional snapshot measurement of surface variation of anchoring in liquid crystal cells
Enhanced, photoactive response can be realised by integrating liquid crystals with photoalignment or photoconductive alignment layers. Such cells, asymmetric by design, need to be monitored for the stability and uniformity, especially in the regions exposed to light. In this work, we report on an integrated, versatile model and technique to characterise their core parameters as well as more subtle effects, such as the strength of anchoring energy. The snapshot method also provides two-dimensional maps of the cells’ thickness, pretilt angle and uniformity.
2D imaging, Nematic liquid crystals, anchoring energy, measurements of elastic constants, photoactive materials
1366-5855
1-11
Perivolari, Eleni
a65ec857-cf22-497d-bdb4-66fb449751d3
D'Alessandro, Giampaolo
bad097e1-9506-4b6e-aa56-3e67a526e83b
Apostolopoulos, Vasileios
8a898740-4c71-4040-a577-9b9d70530b4d
Brouckaert, Nicolas
3a5fc4fe-1d30-4102-9edd-c15d134a5c4b
Heiser, Thomas
c7ab9914-611b-4ded-bd4b-a3524b33f794
Kaczmarek, Malgosia
408ec59b-8dba-41c1-89d0-af846d1bf327
Perivolari, Eleni
a65ec857-cf22-497d-bdb4-66fb449751d3
D'Alessandro, Giampaolo
bad097e1-9506-4b6e-aa56-3e67a526e83b
Apostolopoulos, Vasileios
8a898740-4c71-4040-a577-9b9d70530b4d
Brouckaert, Nicolas
3a5fc4fe-1d30-4102-9edd-c15d134a5c4b
Heiser, Thomas
c7ab9914-611b-4ded-bd4b-a3524b33f794
Kaczmarek, Malgosia
408ec59b-8dba-41c1-89d0-af846d1bf327

Perivolari, Eleni, D'Alessandro, Giampaolo, Apostolopoulos, Vasileios, Brouckaert, Nicolas, Heiser, Thomas and Kaczmarek, Malgosia (2021) Two-dimensional snapshot measurement of surface variation of anchoring in liquid crystal cells. Liquid Crystals, 1-11. (doi:10.1080/02678292.2021.1928309).

Record type: Article

Abstract

Enhanced, photoactive response can be realised by integrating liquid crystals with photoalignment or photoconductive alignment layers. Such cells, asymmetric by design, need to be monitored for the stability and uniformity, especially in the regions exposed to light. In this work, we report on an integrated, versatile model and technique to characterise their core parameters as well as more subtle effects, such as the strength of anchoring energy. The snapshot method also provides two-dimensional maps of the cells’ thickness, pretilt angle and uniformity.

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More information

Accepted/In Press date: 6 May 2021
e-pub ahead of print date: 25 May 2021
Keywords: 2D imaging, Nematic liquid crystals, anchoring energy, measurements of elastic constants, photoactive materials

Identifiers

Local EPrints ID: 449482
URI: http://eprints.soton.ac.uk/id/eprint/449482
ISSN: 1366-5855
PURE UUID: 7ac45a33-b004-4c09-87ea-e9e06f4ff49b
ORCID for Giampaolo D'Alessandro: ORCID iD orcid.org/0000-0001-9166-9356
ORCID for Vasileios Apostolopoulos: ORCID iD orcid.org/0000-0003-3733-2191

Catalogue record

Date deposited: 02 Jun 2021 16:35
Last modified: 26 Nov 2021 02:52

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Contributors

Author: Eleni Perivolari
Author: Nicolas Brouckaert
Author: Thomas Heiser

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