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
2086-2096
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
25 May 2021
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, 48 (15), .
(doi:10.1080/02678292.2021.1928309).
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
Published date: 25 May 2021
Additional Information:
Funding Information:
The authors would like to thank Dr Nina Podoliak, Dr Oleksandr Buchnev, Eleanor White and Ben Beddoes for useful discussions.
Publisher Copyright:
© 2021 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.
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
Catalogue record
Date deposited: 02 Jun 2021 16:35
Last modified: 17 Mar 2024 03:12
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Contributors
Author:
Eleni Perivolari
Author:
Nicolas Brouckaert
Author:
Thomas Heiser
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