[LCT3-2 (Invited)] Chiral Liquid Crystal Diffractive Gratings Based on Photoalignment for Application in Augmented Reality Devices | Proceedings of the International Display Workshops Volume 29 (IDW '22)

Proceedings of the International Display Workshops Volume 29 (IDW '22)

Dec 14 - Dec 16, 2022Fukuoka International Congress Center

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Proceedings of the International Display Workshops Volume 29 (IDW '22)

Dec 14 - Dec 16, 2022Fukuoka International Congress Center

[LCT3-2 (Invited)]Chiral Liquid Crystal Diffractive Gratings Based on Photoalignment for Application in Augmented Reality Devices

*Kristiaan Neyts¹, Brecht Berteloot¹, Migle Stebryte¹, Jeroen Beeckman¹, Inge Nys¹(1.Ghent University (Belgium))

https://doi.org/10.36463/idw.2022.0040

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Keywords:

chiral liquid crystal,flat optics,diffractive gratings,augmented reality

Chiral nematic liquid crystals with a short pitch spontaneously form a helical structure that reflects visible light. By periodic photoalignment, the axis of the helical structure may be tilted. This allows to realize flat optical diffractive gratings or lenses that can be used in augmented reality.

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