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Wide-field optical design for a 60 m submillimeter telescope
Lou, Zheng1,2; Zuo, Ying-xi1,2; Yao, Qi-jun1,2; Shi, Sheng-cai1,2; Yang, Ji1,2; Chen, Xue-peng1,2
2020-04-10
Source PublicationAPPLIED OPTICS
ISSN1559-128X
Volume59Issue:11Pages:3353-3359
Corresponding AuthorLou, Zheng(zhenglou@pmo.ac.cn)
AbstractWe present a practical wide-field optical design for a 60 m aperture submillimeter telescope, which is currently under conceptual design study in China. The telescope is specified to operate over a wavelength range of 0.65-3mm and provide a wide field of view (FOV) of 1 degrees in diameter. We designed an F/6 Ritchey Chretien (RC) system with a quasi-planar tertiary corrector, which cancels all spherical, coma, and astigmatism aberrations. It also achieves a good balance among the mirror sizes, central obscuration, and focal-plane curvature. The problems of focal surface curvature and nontelecentricity are treated in the subfield instrumental design, which employs a simple silicon wedge prism to obtain flat and telecentric focal planes for each subfield instrument module. Our studies show that by such a design, more than 10(5) detector pixels can be efficiently and uniformly fed at the shortest wavelength band with Strehl ratios above 0.85 across the entire 1 degrees FOV. Several practical issues related to the telescope optics are also discussed. (C) 2020 Optical Society of America
DOI10.1364/AO.388320
WOS KeywordABERRATIONS
Indexed BySCI
Language英语
WOS Research AreaOptics
WOS SubjectOptics
WOS IDWOS:000526532600007
PublisherOPTICAL SOC AMER
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Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/35954
Collection中国科学院紫金山天文台
Corresponding AuthorLou, Zheng
Affiliation1.Chinese Acad Sci, Purple Mt Observ, 10 Yuanhua Rd, Nanjing 210033, Peoples R China
2.Chinese Acad Sci, Key Lab Radio Astron, 10 Yuanhua Rd, Nanjing 210033, Peoples R China
Recommended Citation
GB/T 7714
Lou, Zheng,Zuo, Ying-xi,Yao, Qi-jun,et al. Wide-field optical design for a 60 m submillimeter telescope[J]. APPLIED OPTICS,2020,59(11):3353-3359.
APA Lou, Zheng,Zuo, Ying-xi,Yao, Qi-jun,Shi, Sheng-cai,Yang, Ji,&Chen, Xue-peng.(2020).Wide-field optical design for a 60 m submillimeter telescope.APPLIED OPTICS,59(11),3353-3359.
MLA Lou, Zheng,et al."Wide-field optical design for a 60 m submillimeter telescope".APPLIED OPTICS 59.11(2020):3353-3359.
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