Continuously Geometric Phase Modulation by using a reflective liquid crystal structure
文献类型：期刊论文
| 作者 | Lv, Yongmo1,2; Yin, Shaoyun1,2 ; Liu, Yi3; Li, Zhe3; Li, Peng3; Sun, Xiuhui1; Chen, Jianjun1; Yang, Zheng1; Yuan, Jiahu1,2
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| 刊名 | OPTICS COMMUNICATIONS
 |
| 出版日期 | 2022-04-15 |
| 卷号 | 509页码:5 |
| 关键词 | Geometric phase Phase modulation Liquid crystal |
| ISSN号 | 0030-4018 |
| DOI | 10.1016/j.optcom.2021.127847 |
| 通讯作者 | Yin, Shaoyun(ysy@cigit.ac.cn) ; Yuan, Jiahu(yjh@cigit.ac.cn) |
| 英文摘要 | Distinguished from the dynamical phase gained by optical path difference, the geometric phase (GP) is an additional phase delay produced by the variation of polarization states when light propagates in an anisotropic medium. Its modulation amount does not depend on the thickness of the medium or the wavelength of the light, therefore, it is expected to realize smaller and faster phase modulation unit. Based on the principle that the geometric phase generated by two passes through a wave plate of circularly polarized light with the same rotation direction is four times the rotation angle of optical axis of the wave plate, a reflective phase modulation structure composed of an In-plane Switching (IPS) liquid crystal (LC) cell, a mirror and two quarter wave plates is proposed in this paper. Under the action of IPS electrodes, the LC director can rotate nearly 80 degrees in-plane to realize a 320 degrees GP modulation. Finite Difference Time Domain (FDTD) method is used to simulate the GP modulation, and an optical path for interferometric measurement is built. The experimental results are in good agreement with the simulation results. This method uses only a single layer of driving electrodes and a LC cell to achieve 320 degrees GP modulation, which avoids the alignment problem and provides a new idea for the spatial light dynamic modulator. |
| 资助项目 | National Natural Science Foundation of China[62175239] ; Natural Science Foundation of Chongqing, China[cstc2021jcyj-msxmX0781] ; Chongqing Talents: Exceptional Young Talents Prooject[CQYC2020058757] |
| WOS研究方向 | Optics |
| 语种 | 英语 |
| WOS记录号 | WOS:000790469300005 |
| 出版者 | ELSEVIER |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/15903]  |
| 专题 | 中国科学院重庆绿色智能技术研究院 |
| 通讯作者 | Yin, Shaoyun; Yuan, Jiahu |
| 作者单位 | 1.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, 266 Fangzheng Ave, Chongqing 400714, Peoples R China 2.Chongqing Univ Posts & Telecommun, 2 Chongwen Rd, Chongqing 400065, Peoples R China 3.Chongqing BOE Optoelect Technol CO LTD, 7 Yunhan Rd, Chongqing 400714, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lv, Yongmo,Yin, Shaoyun,Liu, Yi,et al. Continuously Geometric Phase Modulation by using a reflective liquid crystal structure[J]. OPTICS COMMUNICATIONS,2022,509:5. |
| APA | Lv, Yongmo.,Yin, Shaoyun.,Liu, Yi.,Li, Zhe.,Li, Peng.,...&Yuan, Jiahu.(2022).Continuously Geometric Phase Modulation by using a reflective liquid crystal structure.OPTICS COMMUNICATIONS,509,5. |
| MLA | Lv, Yongmo,et al."Continuously Geometric Phase Modulation by using a reflective liquid crystal structure".OPTICS COMMUNICATIONS 509(2022):5. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
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