Multistable liquid crystal waveplate

G. G. Wells; C. V. Brown

doi:10.1063/1.2816400

Multistable liquid crystal waveplate

G. G. Wells, C. V. Brown

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

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.

Original language	English
Article number	223506
Number of pages	3
Journal	Applied Physics Letters
Volume	91
Issue number	22
DOIs	https://doi.org/10.1063/1.2816400
Publication status	Published - 27 Nov 2007

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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.",

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AB - 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.

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JO - Applied Physics Letters

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Multistable liquid crystal waveplate

Abstract

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