@inproceedings{1a531d0b419e4006b9d7d7cc77778c83,
title = "Liquid crystal Pancharatnam-Berry optical elements",
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.",
keywords = "Flat optics, Liquid crystal devices, Pancharatnam-Berry phase, Photoalignment",
author = "Ziyuan Zhou and Yubing Guo and Hao Yu and Miao Jiang and Taras Turiv and Irakli Chaganava and Lavrentovich, \{Oleg D.\} and Wei, \{Qi Huo\}",
note = "Publisher Copyright: {\textcopyright} COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.; Liquid Crystals XXIII 2019 ; Conference date: 11-08-2019 Through 12-08-2019",
year = "2019",
doi = "10.1117/12.2528086",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Khoo, \{Iam Choon\}",
booktitle = "Liquid Crystals XXIII",
address = "United States",
}