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Lifting degeneracy in nematic liquid crystal viscosities with a single optical measurement

Lifting degeneracy in nematic liquid crystal viscosities with a single optical measurement
Lifting degeneracy in nematic liquid crystal viscosities with a single optical measurement
The viscosity of complex, anisotropic fluids, such as liquid crystals or their colloidal suspensions, is characterized by a number of coefficients. Methods to measure them are, typically, sensitive only to their particular combinations, hence unable to determine them individually. Using an Ericksen-Leslie model and propagation of light through aligned layers of such materials, we show theoretically and verify experimentally how this degeneracy can be lifted by exploiting both the amplitude and frequency of the voltage applied to the cell as control parameters.
0021-9797
201-206
Bennett, T.P.
9a342b50-e08a-47a8-adb2-1d8d51a9604b
Proctor, M.B.
f181a69d-5fff-4ae7-bbc7-80fe65a36dda
Kaczmarek, M.
408ec59b-8dba-41c1-89d0-af846d1bf327
D'alessandro, G.
bad097e1-9506-4b6e-aa56-3e67a526e83b
Bennett, T.P.
9a342b50-e08a-47a8-adb2-1d8d51a9604b
Proctor, M.B.
f181a69d-5fff-4ae7-bbc7-80fe65a36dda
Kaczmarek, M.
408ec59b-8dba-41c1-89d0-af846d1bf327
D'alessandro, G.
bad097e1-9506-4b6e-aa56-3e67a526e83b

Bennett, T.P., Proctor, M.B., Kaczmarek, M. and D'alessandro, G. (2017) Lifting degeneracy in nematic liquid crystal viscosities with a single optical measurement. Journal of Colloid and Interface Science, 497, 201-206. (doi:10.1016/j.jcis.2017.03.020).

Record type: Article

Abstract

The viscosity of complex, anisotropic fluids, such as liquid crystals or their colloidal suspensions, is characterized by a number of coefficients. Methods to measure them are, typically, sensitive only to their particular combinations, hence unable to determine them individually. Using an Ericksen-Leslie model and propagation of light through aligned layers of such materials, we show theoretically and verify experimentally how this degeneracy can be lifted by exploiting both the amplitude and frequency of the voltage applied to the cell as control parameters.

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Lifting degeneracy in nematic liquid crystal - Accepted Manuscript
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More information

Accepted/In Press date: 2 March 2017
e-pub ahead of print date: 6 March 2017
Published date: 1 July 2017
Organisations: Quantum, Light & Matter Group, Applied Mathematics

Identifiers

Local EPrints ID: 406743
URI: https://eprints.soton.ac.uk/id/eprint/406743
ISSN: 0021-9797
PURE UUID: 433cf6fd-7bca-410d-805e-29aa879efc01
ORCID for G. D'alessandro: ORCID iD orcid.org/0000-0001-9166-9356

Catalogue record

Date deposited: 22 Mar 2017 02:01
Last modified: 31 Jul 2019 04:57

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