High contrast optical system design for exoplanets imaging
文献类型：会议论文
| 作者 | Hao, Bo-Zun1,2; Fan, Xue-Wu2 ; Yuan, Hao2
|
| 出版日期 | 2019 |
| 会议日期 | 2019-07-07 |
| 会议地点 | Beijing, China |
| 关键词 | optical design coronagraph system exoplanets imaging high contrast front telescope design |
| 卷号 | 11341 |
| DOI | 10.1117/12.2545687 |
| 英文摘要 | In this paper, a stellar coronagraph system with wavefront correct instrument is proposed, the optical design and image quality evaluation of the system are carried out, including the optical design of the front telescope system, the collimator instrument, wavefront correcting system in coronagraph and the optical design of the imaging lens. The front system used a structure of off-axis double-mirror telescope, with a diameter of 2.4m, 16 for F, and a FoV of 10 '×10', The design requirements of the coronagraph instrument is: wavelength band is 450nm to 950nm, the detector is a EMCCD with the resolution of 1k×1k, pixel size of 13μm, the diameter of deformable mirror is 10mm. The design requirements of the imaging lens is: the optical aperture D is 5mm, F# is 15, the magnification of beam expander is 12.6 X. In this article, the coronagraph instrument system adopts the phase plate and the Lyot aperture and add the combination of the design and a deformable mirror is used to correct wavefront while a Lyot aperture is used for blocking the remnants of the star light, the introduction of the deformable mirror system can better eliminate both speckle noise and fixed optical surface error influences on imaging quality, also can correct the dynamic error.The design results show that: on the image plane, at the wavelength of requirement, the wavefront RMS value was less than 0.02λ, the result show that the wavefront error of the system reached the diffraction limit, it also means that the optical design of the whole system meet the design standard of coronagraph. © 2019 SPIE. |
| 产权排序 | 1 |
| 会议录 | AOPC 2019: Space Optics, Telescopes, and Instrumentation
 |
| 会议录出版者 | SPIE |
| 语种 | 英语 |
| ISSN号 | 0277786X;1996756X |
| ISBN号 | 9781510634541 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/93223]  |
| 专题 | 西安光学精密机械研究所_空间光学应用研究室 |
| 作者单位 | 1.University of Chinese Academy of Science, Beijing; 100049, China 2.Xi'An Institute of Optics and Precision Mechanics, CAS, Xi'an; 7100119, China; |
| 推荐引用方式 GB/T 7714 | Hao, Bo-Zun,Fan, Xue-Wu,Yuan, Hao. High contrast optical system design for exoplanets imaging[C]. 见:. Beijing, China. 2019-07-07. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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