Theoretical model of differential piston variance under atmospheric turbulence and its application on piston detection of segmented mirrors
文献类型：期刊论文
| 作者 | Hu G(胡钢)1,3; Wang B(王斌)1,2,4; Xiang YY(向永源)1,2,4; Jin ZY(金振宇)1,2,4 |
| 刊名 | OPTICS EXPRESS
 |
| 出版日期 | 2025-11-17 |
| 卷号 | 33期号:23页码:47939-47951 |
| ISSN号 | 1094-4087 |
| DOI | 10.1364/OE.572635 |
| 产权排序 | 第1完成单位 |
| 文献子类 | Article |
| 英文摘要 | The phase of a plane wave is severely distorted by atmospheric turbulence. Thus, co-phasing detection of segmented mirrors not only includes intrinsic error between mirrors, but also error induced by turbulence. Long-exposure or an average of multiple short-exposure frames has been adopted to suppress the influence of turbulence. However, the influence of turbulence on the differential piston between two sub-apertures is challenging to quantify owing to the complexity of the problem of light propagation through turbulence. In this paper, theoretical models of differential piston variance that incorporate the influence of exposure time, wind, outer scale, and multi-layered turbulence have been proposed. Specifically, a model that only considers the differential piston caused by turbulence and a model that considers the differential piston induced by turbulence when the global tilt is removed have been derived. Removing the global tilt has been proven to be effective in mitigating the influence of turbulence and reducing the exposure time of piston detection methods. The influence of turbulence on the differential piston has been quantified and illustrated by using a simplified turbulence profile and wind vertical distribution data from the Fuxian Lake Solar Observatory as an example. The minimum exposure time for piston detection can hence be determined. A numerical experiment has been conducted to cross-validate our theory and PSF-based piston detection method. Our models can serve as a theoretical guidance on strategies to reduce the influence of turbulence on the piston detection of segmented mirrors. (c) 2025 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement |
| 学科主题 | 物理学 ; 光学 ; 天文学 ; 天文学其他学科 ; 机械工程 |
| URL标识 | 查看原文 |
| 出版地 | 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA |
| WOS关键词 | IMAGE MOTION ; OPTICAL RESOLUTION ; KECK TELESCOPES ; COVARIANCE |
| 资助项目 | National Natural Science Foundation of China[11973088]; National Natural Science Foundation of China[12503097]; Candidate Talents Training Fund of Yunnan Province; Yunnan Provincial Science and Technology Department[202301AT070350]; Yunnan Provincial Science and Technology Department[202401AU070062]; Yunnan Key Laboratory of Solar Physics and Space Science Project[202205AG070009]; Yunnan Revitalization Talent Support Program[202305AS350029]; Yunnan Revitalization Talent Support Program[202305AT350005] |
| WOS研究方向 | Optics |
| 语种 | 英语 |
| WOS记录号 | WOS:001627513600001 |
| 出版者 | Optica Publishing Group |
| 资助机构 | National Natural Science Foundation of China[11973088, 12503097] ; Candidate Talents Training Fund of Yunnan Province ; Yunnan Provincial Science and Technology Department[202301AT070350, 202401AU070062] ; Yunnan Key Laboratory of Solar Physics and Space Science Project[202205AG070009] ; Yunnan Revitalization Talent Support Program[202305AS350029, 202305AT350005] |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/28707]  |
| 专题 | 天文技术实验室 |
| 通讯作者 | Hu G(胡钢) |
| 作者单位 | 1.Yunnan Observatories, Chinese Academy of Sciences, Kunming, 650216, China; 2.Yunnan Engineering Center for Applied Astronomical Technology, 650216, China 3.University of Chinese Academy of Sciences, Beijing, 100049, China; 4.Yunnan Key Laboratory of Solar Physics and Space Science, 650216, China; |
| 推荐引用方式 GB/T 7714 | Hu G,Wang B,Xiang YY,et al. Theoretical model of differential piston variance under atmospheric turbulence and its application on piston detection of segmented mirrors[J]. OPTICS EXPRESS,2025,33(23):47939-47951. |
| APA | 胡钢,王斌,向永源,&金振宇.(2025).Theoretical model of differential piston variance under atmospheric turbulence and its application on piston detection of segmented mirrors.OPTICS EXPRESS,33(23),47939-47951. |
| MLA | 胡钢,et al."Theoretical model of differential piston variance under atmospheric turbulence and its application on piston detection of segmented mirrors".OPTICS EXPRESS 33.23(2025):47939-47951. |
入库方式： OAI收割
来源：云南天文台
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