@inproceedings{fc7c4bfa8a7647178a495887b77c0e35,
title = "Study on preparation process of high diffraction efficiency liquid crystal computer generated hologram",
abstract = "Computer-generated hologram (CGH) method is a high-precision aspherical surface detection method. CGH produces wavefronts of any shape with extremely high precision and is adopted in null test. Liquid crystal CGH (LC-CGH) is a new type of CGH with short production cycle and low cost. It is a promising alternative to traditional CGH. In this paper, the overall process flow of LC grating preparation is presented. The influences of three process parameters, such as LC solution concentration, spin coating speed and time on the three physical quantities of LC grating diffraction efficiency, LC polymer film thickness and phase delay are studied. Based on the analysis, improvement measures are proposed for the preparation process. The research carried out in this paper has guiding significance for the processing and manufacturing of LC-CGH.",
keywords = "Diffraction efficiency, Grating, Liquid crystal computer-generated hologram, Phase delay, Photoalignment",
author = "Zhen Wang and Yao Hu and Wanlong Zhang and Shihang Fu and Qun Hao and Yu Zhang",
note = "Publisher Copyright: {\textcopyright} 2020 SPIE.; 2019 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments ; Conference date: 26-10-2019 Through 28-10-2019",
year = "2020",
doi = "10.1117/12.2550272",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Juan Liu and Baohua Jia and Xincheng Yao and Yongtian Wang and Takanori Nomura",
booktitle = "2019 International Conference on Optical Instruments and Technology",
address = "United States",
}