Electrically tunable chiral liquid crystal lens arrays

Kelum Perera; Nilanthi Haputhantrige; Md Sakhawat Hossain Himel; Md Mostafa; Alex Adaka; Oleg D. Lavrentovich; Antal I. Jákli

doi:10.1117/12.2676160

29 September 2023 Electrically tunable chiral liquid crystal lens arrays

Kelum Perera, Nilanthi Haputhantrige, Md Sakhawat Hossain Himel, Md Mostafa, Alex Adaka, Oleg D. Lavrentovich, Antal I. Jákli

Author Affiliations +

Proceedings Volume 12658, Liquid Crystals XXVII; 1265808 (2023) https://doi.org/10.1117/12.2676160
Event: SPIE Organic Photonics + Electronics, 2023, San Diego, California, United States

Abstract

Lenses with tunable focal lengths play important roles in nature as well as modern technologies. In recent years, the demand for electrically tunable lenses and lens arrays has grown, driven by the increasing interest in augmented and virtual reality, as well as sensing applications. In this paper, we present a novel type of electrically tunable microlens utilizing polymer-stabilized chiral ferroelectric nematic liquid crystal. The lens offers a fast response time (5ms) and the focal length can be tuned by applying an in-plane electric field. The electrically induced change in the lens shape, facilitated by the remarkable sensitivity of the chiral ferroelectric nematic to electric fields, enables the tunable focal length capability. The achieved performance of this lens represents a significant advancement compared to electrowetting-based liquid lenses and opens exciting prospects in various fields, including biomimetic optics, security printing, solar energy concentration, and AR/VR devices.

Citation Download Citation

Kelum Perera, Nilanthi Haputhantrige, Md Sakhawat Hossain Himel, Md Mostafa, Alex Adaka, Oleg D. Lavrentovich, and Antal I. Jákli "Electrically tunable chiral liquid crystal lens arrays", Proc. SPIE 12658, Liquid Crystals XXVII, 1265808 (29 September 2023); https://doi.org/10.1117/12.2676160

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