Flat Optical Chiral Liquid Crystal Diffractive Elements for Efficient Beam Combiners in Augmented Reality Devices

Kristiaan Neyts

doi:https://doi.org/10.36463/idw.2023.0773

1:00 PM - 1:20 PM

[PRJ1-1 (Invited)] Flat Optical Chiral Liquid Crystal Diffractive Elements for Efficient Beam Combiners in Augmented Reality Devices

*Kristiaan Neyts^1,2,3, Brecht Berteloot³, Migle Stebryte³, Rohan Sharma³, Inge Nys³ (1. Hong Kong University of Science and Technology (Hong Kong), 2. State Key Laboratory of Advanced Displays and Optoelectronics Technologies (Hong Kong), 3. Ghent University (Belgium))

liquid crystals, augmented reality, diffractive optics, tilted helical axis

https://doi.org/10.36463/idw.2023.0773

Nematic liquid crystal with chiral dopant self-organizes into a helical structure that efficiently reflects circularly polarized light within a certain wavelength range. Diffractive optical properties can be realized by using variable photoalignment. Linear gratings, spherical lenses or other components can be designed for use in augmented reality.

Proceedings of the International Display Workshops Volume 30 (IDW '23)

[PRJ1-1 (Invited)] Flat Optical Chiral Liquid Crystal Diffractive Elements for Efficient Beam Combiners in Augmented Reality Devices