光学学报, 2013, 33 (11): 1123002, 网络出版: 2013-10-24   

液晶相控阵衍射效率的优化分析

Optimized Analysis of Diffraction Efficiency for Liquid Crystal Optical Phased Array
作者单位
中国工程物理研究院流体物理研究所, 四川 绵阳 621900
摘要
衍射效率和扫描范围是影响液晶相控阵实际应用的关键指标,为了实现较大的扫描范围,需要制备高分辨率的液晶相控阵器件,然而在高分辨率下液晶的非线性关联效应会影响其衍射效率,从而限制了其扫描范围。从非线性关联机理出发,数值模拟了明确影响衍射效率的关键因素。通过观察液晶材料参数和器件结构参数对衍射效率的影响,明确优化器件衍射效率的方向。基于优化控制思想,采用优化算法应用合适的电极电压进一步提高器件的衍射效率,减小非线性关联效应的影响,为同时实现较大扫描范围和较高衍射效率的液晶相控阵奠定基础。
Abstract
Diffraction efficiency and scanning range determine the optical performance of liquid crystal optical phased array. To enhance the scanning range, it is necessary to fabricate high spatial resolution device. But due to the limitation of the nonlinear correlation effect, there is a tradeoff between the diffraction efficiency and the scanning range. The key parameters influencing the diffraction efficiency of optical phased array are elucidated based on the mechanism of nonlinear correlation. The effect of the material parameters and device structural parameters on the diffraction efficiency is also investigated, and suggestion is given to enhance the diffraction efficiency. Furthermore, to reduce the effect of nonlinear correlation, optimization method is employed to adapt the voltages applied on each electrode to enhance the diffraction efficiency and proved to be in effect, which will contribute to enlarge the scanning range of optical phased array.

赵祥杰, 刘仓理, 张大勇, 骆永全. 液晶相控阵衍射效率的优化分析[J]. 光学学报, 2013, 33(11): 1123002. Zhao Xiangjie, Liu Cangli, Zhang Dayong, Luo Yongquan. Optimized Analysis of Diffraction Efficiency for Liquid Crystal Optical Phased Array[J]. Acta Optica Sinica, 2013, 33(11): 1123002.

本文已被 6 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!