文献类型：会议论文

英文题名：Design and Simulation of an Optical Beam Deflector based on Liquid Crystal and Blazed Grating

作者：Lin, Nan[1];Xue, Ying-Hong[1];Niu, Yue-Ping[1];Wang, Xiao-Qian[1];Gong, Shang-Qing[1]

机构：[1]East China Univ Sci & Technol, Dept Phys, Shanghai, Peoples R China

会议论文集：Asia Communications and Photonics Conference (ACP)

会议日期：OCT 26-29, 2018

会议地点：Hangzhou, PEOPLES R CHINA

语种：英文

外文关键词：blazed grating; liquid crystal; beam deflection

摘要：A reflection-type nonmechanical large-angle beamsteering device is presented which is composed of a reflective blazed grating and liquid crystal. The design scheme can realize the beam steering by changing the effective refractive index of the liquid crystal. The deflection characteristic is analyzed and simulated theoretically. The results show that a deflector with a large deflection angle of 24.2 degrees and a low applied voltage of 5V can be obtained by selecting appropriate parameters of the grating and incident angle. The analysis will be valuable for the accurate design and fabrication of this kind of reflective beam deflector based on liquid crystal.