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 | |
刊名 | LIQUID CRYSTALS |
2018 | |
卷号 | 45期号:10页码:1477-1486 |
关键词 | Non-mechanical Beam Steering Optical Phased Array Liquid Crystal |
ISSN号 | 0267-8292 |
DOI | 10.1080/02678292.2018.1448474 |
产权排序 | 3 |
英文摘要 | 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. |
学科主题 | Chemistry, Multidisciplinary ; Crystallography ; Materials Science, Multidisciplinary |
WOS研究方向 | Chemistry ; Crystallography ; Materials Science |
语种 | 英语 |
出版者 | TAYLOR & FRANCIS LTD |
WOS记录号 | WOS:000439980100008 |
内容类型 | 期刊论文 |
源URL | [http://ir.opt.ac.cn/handle/181661/30538] |
专题 | 西安光学精密机械研究所_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 |
推荐引用方式 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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