Liquid crystal Pancharatnam-Berry optical elements

Ziyuan Zhou; Yubing Guo; Hao Yu; Miao Jiang; Taras Turiv; Irakli Chaganava; Oleg D. Lavrentovich; Qi-Huo Wei

doi:10.1117/12.2528086

29 August 2019 Liquid crystal Pancharatnam-Berry optical elements

Ziyuan Zhou, Yubing Guo, Hao Yu, Miao Jiang, Taras Turiv, Irakli Chaganava, Oleg D. Lavrentovich, Qi-Huo Wei

Proceedings Volume 11092, Liquid Crystals XXIII; 110920D (2019) https://doi.org/10.1117/12.2528086
Event: SPIE Organic Photonics + Electronics, 2019, San Diego, California, United States

Abstract

In this paper, we aim to show that liquid crystal films (LCs) with well-defined molecular orientations are an exceptional platform for flat optical devices based on the Pancharatnam-Berry (PB) phase. Especially, the development of plasmonic photopatterning technique in recent years has made it easy to align liquid crystal molecules in to designer orientation patterns with both high spatial resolution and high throughput and thus enables large scale manufacturing liquid crystal optical devices with low costs. Here we present liquid crystal laser beam shapers and microlenses as two examples to illustrate the design principles and the fabrication processes for liquid crystal flat optical elements. In comparison with flat optical devices made of plasmonic or dielectric metasurfaces, liquid crystal flat optical elements are advantageous due to the high optical efficiencies and low fabrication costs.

Citation Download Citation

Ziyuan Zhou, Yubing Guo, Hao Yu, Miao Jiang, Taras Turiv, Irakli Chaganava, Oleg D. Lavrentovich, and Qi-Huo Wei "Liquid crystal Pancharatnam-Berry optical elements", Proc. SPIE 11092, Liquid Crystals XXIII, 110920D (29 August 2019); https://doi.org/10.1117/12.2528086

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