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Proceedings Paper

Liquid crystal Pancharatnam-Berry optical elements
Author(s): Ziyuan Zhou; Yubing Guo; Hao Yu; Miao Jiang; Taras Turiv; Irakli Chaganava; Oleg D. Lavrentovich; Qi-Huo Wei
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Paper 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.

Paper Details

Date Published: 29 August 2019
PDF: 8 pages
Proc. SPIE 11092, Liquid Crystals XXIII, 110920D (29 August 2019); doi: 10.1117/12.2528086
Show Author Affiliations
Ziyuan Zhou, Kent State Univ. (United States)
Yubing Guo, Kent State Univ. (United States)
Hao Yu, Kent State Univ. (United States)
Miao Jiang, Kent State Univ. (United States)
Taras Turiv, Kent State Univ. (United States)
Irakli Chaganava, Georgian Technical Univ. (Georgia)
Georgian State Teaching Univ. of Physical Education and Sport (Georgia)
Oleg D. Lavrentovich, Kent State Univ. (United States)
Qi-Huo Wei, Kent State Univ. (United States)

Published in SPIE Proceedings Vol. 11092:
Liquid Crystals XXIII
Iam Choon Khoo, Editor(s)

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