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Theoretical analysis on power stability and switch time of the non-mechanical beam steering using liquid crystal optical phased array
Wang, Xiangru1; Wu, Liang2; He, Xiaoxian1; Huang, Xinning3; Tan, Qinggui4
作者部门瞬态光学技术国家重点实验室
2018
发表期刊LIQUID CRYSTALS
ISSN0267-8292
卷号45期号:10页码:1477-1486
产权排序3
摘要

Focusing on the coherent optics of phased array, a dynamic theoretical model is built to analyse the process of laser beam steering using the device of liquid crystal optical phased array. Based on the dynamics of electrical field induced liquid crystal molecule rotation and the mechanism of phased control non-mechanical steering, switching time is redefined according to two curves representing receiving power on the current direction and targeting direction. Meanwhile, including the far field distribution, power stability and pointing direction, two cases with large steering step and tiny steering step are evaluated. The steering time between two angles is minished to be less than the switch-off decay time. In addition, the instability on the process of beam steering is obvious although the steering step is only half of beam width. To overcome this instability, tinier steering step is suggested although it is also limited by the driving algorithm and driving circuits.

关键词Non-mechanical Beam Steering Optical Phased Array Liquid Crystal
学科领域Chemistry, Multidisciplinary ; Crystallography ; Materials Science, Multidisciplinary
DOI10.1080/02678292.2018.1448474
收录类别SCI
语种英语
WOS研究方向Chemistry ; Crystallography ; Materials Science
WOS记录号WOS:000439980100008
出版者TAYLOR & FRANCIS LTD
引用统计
文献类型期刊论文
条目标识符http://ir.opt.ac.cn/handle/181661/30538
专题瞬态光学技术国家重点实验室
通讯作者Wang, Xiangru
作者单位1.Univ Elect Sci & Technol China, Sch Optoelect Informat, Chengdu 610054, Peoples R China
2.Univ Elect Sci & Technol China, Sch Phys Elect, Chengdu, Sichuan, Peoples R China
3.Chinese Acad Sci, Xian Inst Opt & Precis Mech, Beijing, Peoples R China
4.Acad Space Informat Syst, Xian, Shaanxi, Peoples R China
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GB/T 7714
Wang, Xiangru,Wu, Liang,He, Xiaoxian,et al. Theoretical analysis on power stability and switch time of the non-mechanical beam steering using liquid crystal optical phased array[J]. LIQUID CRYSTALS,2018,45(10):1477-1486.
APA Wang, Xiangru,Wu, Liang,He, Xiaoxian,Huang, Xinning,&Tan, Qinggui.(2018).Theoretical analysis on power stability and switch time of the non-mechanical beam steering using liquid crystal optical phased array.LIQUID CRYSTALS,45(10),1477-1486.
MLA Wang, Xiangru,et al."Theoretical analysis on power stability and switch time of the non-mechanical beam steering using liquid crystal optical phased array".LIQUID CRYSTALS 45.10(2018):1477-1486.
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