A Hybrid Pulsed Rayleigh-sodium Laser Guide Star Adaptive Optics System for Strong Turbulence Observations
文献类型：期刊论文
| 作者 | Deng, Keran1,3; Wei, Kai1,3; Jin, Kai3; Dong, Ruoxi1,3; Li, Min3; Zhang, Yudong1,3 |
| 刊名 | PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC
 |
| 出版日期 | 2019-11-01 |
| 卷号 | 131期号:1005 |
| ISSN号 | 0004-6280 |
| 关键词 | instrumentation: adaptive optics methods: numerical telescopes |
| DOI | 10.1088/1538-3873/ab2ca9 |
| 文献子类 | 期刊论文 |
| 英文摘要 | Sodium laser guide star (LGS) adaptive optics (AO) systems have become highly productive tools for all-sky astronomical observations with large telescopes. However, the performance of these systems is limited by the brightness of the sodium LGS and the number of wavefront sensor subapertures used during strong atmospheric turbulence. We propose a hybrid pulsed Rayleigh-sodium LGS AO system that exhibits an improved Strehl ratio of 55% to eliminate the effects of partial wavefront sampling for limited sodium LGS brightness in K-band. This technique uses the Rayleigh scattering signal, a byproduct of pulsed sodium LGS, with temporal-gating approach. This system comprises a Rayleigh LGS to direct light toward the wavefront sensor under a wide variety of atmospheric conditions. The Rayleigh beacon provides high-order corrections to the low-altitude layers. Any remaining distortions from higher layers typically exist on a much larger scale, which can be sampled with comparatively larger subapertures. This approach could improve the performance of large optics-infrared telescopes equipped with hybrid Rayleigh-sodium LGS AO systems during strong turbulence events. |
| 出版地 | BRISTOL |
| WOS关键词 | PERFORMANCE ; COMPENSATION ; IMPROVEMENT ; DESIGN |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | IOP PUBLISHING LTD |
| WOS记录号 | WOS:000487557800001 |
| 源URL | [http://ir.ioe.ac.cn/handle/181551/9794]  |
| 专题 | 光电技术研究所_自适应光学技术研究室（八室） |
| 作者单位 | 1.Chinese Acad Sci, Inst Opt & Elect, Chengdu 610209, Sichuan, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Key Lab Adapt Opt, Chengdu 610209, Sichuan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Deng, Keran,Wei, Kai,Jin, Kai,et al. A Hybrid Pulsed Rayleigh-sodium Laser Guide Star Adaptive Optics System for Strong Turbulence Observations[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC,2019,131(1005). |
| APA | Deng, Keran,Wei, Kai,Jin, Kai,Dong, Ruoxi,Li, Min,&Zhang, Yudong.(2019).A Hybrid Pulsed Rayleigh-sodium Laser Guide Star Adaptive Optics System for Strong Turbulence Observations.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC,131(1005). |
| MLA | Deng, Keran,et al."A Hybrid Pulsed Rayleigh-sodium Laser Guide Star Adaptive Optics System for Strong Turbulence Observations".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC 131.1005(2019). |
入库方式： OAI收割
来源：光电技术研究所
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