一种应用在增强现实领域的倾斜液晶/聚合物体光栅的制备

刘明欢; 付秀华; 王菲; 唐健; 宣丽; 冯东洋; 刘风雷

doi:10.37188/YJYXS20203510.1012

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一种应用在增强现实领域的倾斜液晶/聚合物体光栅的制备

器件物理及器件制备技术 | 更新时间：2020-09-28

- 一种应用在增强现实领域的倾斜液晶/聚合物体光栅的制备
- Fabrication of slanted liquid crystal/polymer volume grating applied to augmented reality
- 液晶与显示 2020年35卷第10期页码：1012-1018
- 作者机构：
  
  1.长春理工大学光电工程学院, 吉林长春 130022
  2.浙江水晶光电科技股份有限公司中央研究院, 浙江台州 318015
  3.中国科学院长春光学精密机械与物理研究所应用光学国家重点实验室, 吉林长春 130033
- 作者简介：
  
  [ "刘明欢(1990-)男, 吉林公主岭人, 博士, 2018年于长春光学精密机械与物理研究所获得博士学位, 主要从事全息液晶/聚合物光栅, 全息偏振光栅以及有机激光器等方面的研究。E-mail:liuminghuan13@mails.ucas.edu.cn" ]
- 基金信息：
  
  军委科技委基础加强重点项目(2019-JCJQ-ZD-320-00);国家自然科学基金重点项目(U1937201)
- DOI：10.37188/YJYXS20203510.1012
  中图分类号： O753.2;TP217
- 收稿日期：2020-04-08，
  
  修回日期：2020-05-06，
  
  录用日期：2020-5-6，
  
  纸质出版日期：2020-10-05
- 稿件说明：
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刘明欢, 付秀华, 王菲, 等. 一种应用在增强现实领域的倾斜液晶/聚合物体光栅的制备[J]. 液晶与显示, 2020,35(10):1012-1018.

Ming-huan LIU, Xiu-hua FU, Fei WANG, et al. Fabrication of slanted liquid crystal/polymer volume grating applied to augmented reality[J]. Chinese journal of liquid crystals and displays, 2020, 35(10): 1012-1018.
刘明欢, 付秀华, 王菲, 等. 一种应用在增强现实领域的倾斜液晶/聚合物体光栅的制备[J]. 液晶与显示, 2020,35(10):1012-1018. DOI： 10.37188/YJYXS20203510.1012.

Ming-huan LIU, Xiu-hua FU, Fei WANG, et al. Fabrication of slanted liquid crystal/polymer volume grating applied to augmented reality[J]. Chinese journal of liquid crystals and displays, 2020, 35(10): 1012-1018. DOI： 10.37188/YJYXS20203510.1012.

摘要

体光栅波导作为实现增强现实显示的一种方案，其核心是体光栅的制备。本工作提出了一种简单，易于搭建的非对称曝光的光路，制备的倾斜体光栅衍射效率高达80%。使用632.8 nm He-Ne激光监测光栅的演化过程，结果表明光栅在25 s内反应结束，形成光栅。SEM图像证明了光栅的倾斜特性，并与理论计算结果一致。制备的倾斜体光栅的衍射效率失谐曲线与耦合波理论取得了良好的一致性，其半高宽为3.22°。倾斜体光栅可以被外界电场调谐，90%以及10%调谐场强分别为5.1 V/

m以及11.25 V/

m。本工作对倾斜/液晶聚合物体光栅的制备提供了积极的指导和借鉴。

Abstract

Volume grating waveguide as a solution to realize augmented reality display

its core is the fabrication of volume grating. This work proposes a simple

easy-to-build asymmetric exposure optical path with a diffraction efficiency of up to 80% for the fabricated slanted volume grating. A 632.8 nm He-Ne laser was used to monitor the evolution of the grating. The results showed that the grating reaction was completed within 25 s

forming the resulting grating. The SEM image proves the tilt characteristics of the grating and is consistent with the theoretical calculation results. The diffraction efficiency detuning curve of the fabricated slanted volume grating shows a good agreement with the coupled wave theory

and its FWHM is 3.22°. The slanted volume grating can be switched by an external electric field. The 90% and 10% switching field strengths are 5.1 V/

m and 11.25 V/

respectively. This work provides positive guidance and reference for the fabrication of slanted liquid crystal/polymer volume gratings.

关键词

Keywords

references

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