Robust measurement of flexoelectro-optic switching with different surface alignments

Sandford O’Neill, John J.; Fells, Julian A. J.; Welch, Chris; Mehl, Georg; Yip, Wing C.; Wilkinson, Timothy D.; Booth, Martin J.; Elston, Steve J.; Morris, Stephen M.

Abstract

The alignment of chiral nematic liquid crystals in the so-called uniform lying helix geometry allows for the observation and exploitation of the flexoelectro-optic effect. However, high-quality uniform lying helix alignment is difficult to achieve reliably, and this can potentially impact the accuracy of the measurements made on the flexoelectro-optic switching behaviour. Here, we show that, using an appropriate method, it is possible to make measurements of the flexo-electric coefficients that are not substantially influenced by the alignment quality.

Citation

Sandford O’Neill, J. J., Fells, J. A. J., Welch, C., Mehl, G., Yip, W. C., Wilkinson, T. D., …Morris, S. M. (2019). Robust measurement of flexoelectro-optic switching with different surface alignments. Journal of applied physics, 125(9), https://doi.org/10.1063/1.5086241

• Journal Article Type: Article
• Acceptance Date: Jan 29, 2019
• Online Publication Date: Mar 4, 2019
• Publication Date: Mar 7, 2019
• Deposit Date: Mar 6, 2019
• Publicly Available Date: Mar 6, 2019
• Journal: Journal of Applied Physics
• Print ISSN: 0021-8979
• Electronic ISSN: 1089-7550
• Publisher: AIP Publishing
• Peer Reviewed: Peer Reviewed
• Volume: 125
• Issue: 9
• Article Number: 093104
• DOI: https://doi.org/10.1063/1.5086241
• Keywords: General Physics and Astronomy
• Public URL: https://hull-repository.worktribe.com/output/1357802
• Publisher URL: https://aip.scitation.org/doi/10.1063/1.5086241
• Additional Information: Received: 2018-12-19; Accepted: 2019-01-29; Published: 2019-03-04