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	A Digital Metamaterial of Arbitrary Base Based on Voltage Tunable Liquid Crystal 期刊论文 OAI收割 IEEE Access, 2019, 卷号: 7, 页码: 79671-79676 作者: Zhao, Yizhe; Huang, Cheng; Song, Zelin; Yu, Chengyong; Liang, Shuo \| 收藏 \| 浏览/下载：23/0 \| 提交时间：2021/05/06 Coding metamaterial digital metamaterial liquid crystal (LC) coding particle beam steering RCS reduction
	The state of the art for liquid crystal adaptive optics in astronomical applications (EI CONFERENCE) 会议论文 OAI收割 2012 International Conference on Optoelectronics and Microelectronics, ICOM 2012, August 23, 2012 - August 25, 2012, Changchun, China 作者: Liu Y.; Liu Y.; Xuan L.; Liu Y. 收藏 \| 浏览/下载：27/0 \| 提交时间：2013/03/25 In this paper we summarize the researches of liquid crystal (LC) adaptive optics(AO) in astronomical applications. Dual frequency and nematic LC materials were reported to be used in astronomical observations. However nematic LC with its simple producing and driving method and multi-gray-level is promising in the application. We have investigated the nematic LC AO system and promoted its application for nearly ten years. Here we reported our newest nematic LC AO system with bandwidth result of 3dB is 54.4 Hz 0dB bandwidth is 79.1Hz. 2012 IEEE.
	Theoretical research of an improved C-V method to measure the elastic constants of nematic liquid crystal (EI CONFERENCE) 会议论文 OAI收割 Asia Display 2007, AD'07, March 12, 2007 - March 16, 2007, Shanghai, China Kong X.; Jin H.; Huang X.; Liao Y.; Liu J. e. 收藏 \| 浏览/下载：21/0 \| 提交时间：2013/03/25 A more exactitude C-V method to determine the elastic constants for nematic liquid crystal is discussed. For positive nematic liquid crystal(NLC) the threshold voltage becomes uncertain when the pretilt angle is not zero so the value of k11 must be erroneous. To solve this problem we report the formulas about capacitance and voltage with the pretilt angle isn't zero present the method to determine the elastic constants -k11 and k 33 simultaneously by curvefitting. We simulate and analyze the theory of this method in virtue of MatLab. The proposed method can reduce the requirement of LC cell increase the accuracy.
	Novel fast measurement method of twist angle and optical retardation of liquid crystal display (EI CONFERENCE) 会议论文 OAI收割 Asia Display 2007, AD'07, March 12, 2007 - March 16, 2007, Shanghai, China Huang X.; Lu Y.-T.; Kong X.-J.; Jing H.; Fu G.-Z.; Jin H. 收藏 \| 浏览/下载：15/0 \| 提交时间：2013/03/25 A novel method is proposed to measure twist angle and optical retardation of liquid crystal display in this paper. The new method which is one of single-wavelength methods has three characteristics introducing a method of measuring the total intensity ratio of the transmitted light to eliminate the influence of absorption by the polarizer using circularly and homogeneously aligned LC cell (CH-LC) as a unique polarization-converting device analyzer using variable sector diaphragm and photodetector to detect the total intensity of transmitted light whose original polarization direction is continuously changed from 0 to arbitrary angle CH-LC liquid crystal display and so on. The twist angle () and optical retardation (nd) can be derived by using Jones matrix analysis and a curve fitting where and nd are fitting parameters. Experiment proved the results are accurate the process of operation is fast the devices are economical.