Multistable liquid crystal waveplate

Wells, Gary and Brown, C. V. (2007) Multistable liquid crystal waveplate. Applied Physics Letters, 91 (22). p. 223506. ISSN 0003-6951

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Abstract

A multistable liquid crystal waveplate has been produced by confining a roughly disk-shaped nematic liquid crystal droplet of diameter 50 mu m between two photoresist coated surfaces separated by 15 mu m. Dimple features occur on opposite sides of the curve-free edge of the droplet, which may indicate the position of nematic disclinations. The diameter that connects these features coincides with an optic axis of the droplet. In-plane ac voltage bursts produce an optic axis rotation, controllable down to 1 degrees steps, to other arbitrary, stable orientations. The rotation angle is proportional to the burst duration and the voltage squared.

Item Type:	Article
Subjects:	F300 Physics H600 Electronic and Electrical Engineering
Department:	Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User:	Paul Burns
Date Deposited:	18 Feb 2019 17:33
Last Modified:	10 Oct 2019 23:33
URI:	http://nrl.northumbria.ac.uk/id/eprint/38096

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