Holographic properties of H-PDLC transmission volume grating with high spatial frequency for waveguide imaging propagation

Jihong Zheng; Ning Zhu; Ke Li; Tong Shen; Yourong Liu; Zhanjun Yan

doi:10.1117/12.3027693

30 September 2024 Holographic properties of H-PDLC transmission volume grating with high spatial frequency for waveguide imaging propagation

Jihong Zheng, Ning Zhu, Ke Li, Tong Shen, Yourong Liu, Zhanjun Yan

Author Affiliations +

Proceedings Volume 13140, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XVIII; 1314008 (2024) https://doi.org/10.1117/12.3027693
Event: Optical Engineering + Applications, 2024, San Diego, California, United States

Abstract

For the waveguide displays, low diffraction efficiency and narrow response bandwidth at high spatial frequency limit the development of coupling elements. In this paper, a dual-monomer, with higher and lower refractive index modulation separately, allyl propionate H-PDLC system is proposed. After experimental optimization, the diffraction efficiency of prepared high transmittance (more than 90% in the visible spectrum) H-PDLC gratings is up to 91%, and the response bandwidth is 99 nm at 973 lp/mm. By increasing the proportion of initiator and changing the radiation conditions, the diffraction efficiency is optimized to 75.4% and the response bandwidth is 29 nm at 2941 lp/mm. The experiments demonstrate that the high-frequency H-PDLC gratings have considerable application prospects as coupling elements for augmented reality optical waveguide display systems.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Jihong Zheng, Ning Zhu, Ke Li, Tong Shen, Yourong Liu, and Zhanjun Yan "Holographic properties of H-PDLC transmission volume grating with high spatial frequency for waveguide imaging propagation", Proc. SPIE 13140, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XVIII, 1314008 (30 September 2024); https://doi.org/10.1117/12.3027693

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