Electrically switchable continuous liquid crystal Fresnel zone plates

Conference item : Poster

This presentation focuses on creating technology to replace static refractive lenses with switchable 3D Fresnel Zone Plates (FZPs) in liquid crystal, created using two-photon polymerization direct laser writing. These FZPs act as switchable diffractive lenses and by combining the elements we can achieve polarization-independent focusing effects. Therefore, our results demonstrate the creation of polarization-independent binary FZPs and 3D FZPs with higher optical efficiency, which could lead to the development of more compact and lightweight optical systems. Our new FZPs also provide an important alternative to the refractive lenses that are used in AR/VR displays.

Authors: Xu, Z; Nourshargh, C; Xu, A; Elston, S; Wang, T

• Publication status: Published
• Peer review status: Peer reviewed
• Publisher: Society of Photographic Instrumentation Engineers
• Journal: Proceedings of SPIE
• Volume: PC13387
• Article number: PC133870G
• Publication date: 2025-03-21
• Acceptance date: 2025-03-21
• Event title: Emerging Liquid Crystal Technologies XX
• Event location: San Francisco, CA, USA
• Event website: https://www.ilcsoc.org/event-5914502
• Event start date: 2025-01-25
• Event end date: 2025-01-30
• DOI: 10.1117/12.3040489
• ISSN: 0277-786X
• Language: English
• Subtype: Poster