Design, Calibration, and On-Site Validation of an LCVR-Driven Fast-Tunable Lyot Filter for the YOGIS Coronagraph
文献类型：期刊论文
| 作者 | 宋腾飞(1,2,†); Liu, Yu(3,†); Zhang XF(张雪飞)3,4; Zhao MY(赵明宇)3,4; Li, Zhen1 |
| 刊名 | PHOTONICS
 |
| 出版日期 | 2026-01-16 |
| 卷号 | 13期号:1 |
| 关键词 | Lyot filter coronagraph LCVR YOGIS |
| DOI | 10.3390/photonics13010076 |
| 产权排序 | 第1完成单位 |
| 文献子类 | Article |
| 英文摘要 | The Lyot filter, a fundamental element of the Yunnan Observatories Coronagraph Green-line Imaging System (YOGIS) at Lijiang Observatory, utilizes a Liquid Crystal Variable Retarder (LCVR) for swift electrical modulation. This filter allows for precise observations of the coronal green line (Fe XIV, central wavelength 5303 & Aring;) with a narrow full-width at half-maximum (FWHM) of 1 & Aring; and enables rapid adjustment of the transmission band wavelength. This feature aids in capturing the sky background intensity around the green line and images of two line wings (offset by +/- 0.45 & Aring; from the central wavelength), crucial for determining the green line's Doppler shift. By employing sky background subtraction and processing line wing images, an improved signal-to-noise ratio (SNR) in coronal green line images is achieved. The YOGIS Lyot filter, an enhancement of the NOrikura Green-line Imaging System (NOGIS) filter, operates at a wavelength of 5303 & Aring;, offers a wavelength tuning range of +/- 2 & Aring;, and tunes within <60 ms. This study elucidates the filter's design principles, outlines essential calibration procedures, and validates its performance through on-site observations using the YOGIS. |
| 学科主题 | 物理学 ; 光学 ; 天文学 ; 天文学其他学科 ; 机械工程 ; 仪器仪表技术 ; 光学技术与仪器 ; 天文仪器 |
| URL标识 | 查看原文 |
| 出版地 | MDPI AG, Grosspeteranlage 5, CH-4052 BASEL, SWITZERLAND |
| WOS关键词 | BIREFRINGENT FILTERS |
| 资助项目 | Yunnan Fundamental Research Projects[202401AT070140]; National Natural Science Foundation of China[NSFC 12473089]; National Natural Science Foundation of China[12373063]; National Natural Science Foundation of China[U2031148]; National Natural Science Foundation of China[11873092]; National Natural Science Foundation of China[11973086]; National Natural Science Foundation of China[12173086]; National Natural Science Foundation of China[12163004]; National Natural Science Foundation of China[11873090]; Central Universities[2682025CX031] |
| WOS研究方向 | Optics |
| 语种 | 英语 |
| WOS记录号 | WOS:001672088400001 |
| 出版者 | MDPI |
| 资助机构 | Yunnan Fundamental Research Projects[202401AT070140] ; National Natural Science Foundation of China[NSFC 12473089, 12373063, U2031148, 11873092, 11973086, 12173086, 12163004, 11873090] ; Central Universities[2682025CX031] |
| 版本 | 出版稿 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/28901]  |
| 专题 | 无名山观测站 |
| 通讯作者 | Li, Zhen |
| 作者单位 | 1.School of Astronomy and Space Science, Nanjing University, Nanjing 210093, China 2.College of Physical Science and Technology, Southwest Jiaotong University, Chengdu 611756, China; 3.Yunnan Key Laboratory of Solar Physics and Space Science, Kunming 650216, China; 4.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China; |
| 推荐引用方式 GB/T 7714 | Song TF,Liu, Yu,Zhang XF,et al. Design, Calibration, and On-Site Validation of an LCVR-Driven Fast-Tunable Lyot Filter for the YOGIS Coronagraph[J]. PHOTONICS,2026,13(1). |
| APA | 宋腾飞,Liu, Yu,张雪飞,赵明宇,&Li, Zhen.(2026).Design, Calibration, and On-Site Validation of an LCVR-Driven Fast-Tunable Lyot Filter for the YOGIS Coronagraph.PHOTONICS,13(1). |
| MLA | 宋腾飞,et al."Design, Calibration, and On-Site Validation of an LCVR-Driven Fast-Tunable Lyot Filter for the YOGIS Coronagraph".PHOTONICS 13.1(2026). |
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