A liquid crystal alignment layer that can be applied to preformed cavities

C. McGinty; V. Finnemeyer; R. Reich; H. Clark; S. Berry; P. Bos

doi:10.1117/12.2568813

20 August 2020 A liquid crystal alignment layer that can be applied to preformed cavities

C. McGinty, V. Finnemeyer, R. Reich, H. Clark, S. Berry, P. Bos

Proceedings Volume 11472, Liquid Crystals XXIV; 114720P (2020) https://doi.org/10.1117/12.2568813
Event: SPIE Organic Photonics + Electronics, 2020, Online Only

Abstract

This paper describes a robust liquid crystal alignment layer that can be applied to the interior surfaces of a preformed cavity. In this paper, we describe a method of infusing a dye into a microcavity to produce an effective photodefinable alignment layer. Additionally, we demonstrate that after the application of a diffused RM layer, the alignment of the liquid crystal can be rendered insensitive to subsequent light exposure. In this work we make clear the effect of the RM is not stabilizing the azodye layer, but becomes the stable alignment layer. This is demonstrated by using the process described above with the additional step of realigning of the azodye layer to be perpendicular to the surface through photo-bleaching; and showing the alignment of the LC is unaffected by this process. This versatile alignment layer method, offers significant promise for new photonics applications.

Conference Presentation

Citation Download Citation

C. McGinty, V. Finnemeyer, R. Reich, H. Clark, S. Berry, and P. Bos "A liquid crystal alignment layer that can be applied to preformed cavities", Proc. SPIE 11472, Liquid Crystals XXIV, 114720P (20 August 2020); https://doi.org/10.1117/12.2568813

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