Submicrometer photoalignment for photonic components based on tilted chiral liquid crystal

I. Nys; B. Berteloot; M. Stebryte; J. Beeckman; K. Neyts

doi:10.1117/12.2607774

3 March 2022 Submicrometer photoalignment for photonic components based on tilted chiral liquid crystal

I. Nys, B. Berteloot, M. Stebryte, J. Beeckman, K. Neyts

Proceedings Volume 12023, Emerging Liquid Crystal Technologies XVII; 1202304 (2022) https://doi.org/10.1117/12.2607774
Event: SPIE OPTO, 2022, San Francisco, California, United States

Abstract

Using the principle of photo-alignment it has become possible to pattern the orientation of liquid crystal on a substrate. With this approach liquid crystal gratings and lenses with high optical quality have been realized. Recently we have demonstrated that the period of the photo-alignment can be reduced below one micrometer. Chiral liquid crystal that is deposited on this photo-alignment layer will tilt its helical axis and circularly polarized light is diffracted over a certain angle with high yield. The resulting device behaves as a volume hologram with interesting properties: high reflectivity in a certain wavelength range, tunable diffraction angle and low scattering.

Conference Presentation

Citation Download Citation

I. Nys, B. Berteloot, M. Stebryte, J. Beeckman, and K. Neyts "Submicrometer photoalignment for photonic components based on tilted chiral liquid crystal", Proc. SPIE 12023, Emerging Liquid Crystal Technologies XVII, 1202304 (3 March 2022); https://doi.org/10.1117/12.2607774

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