Nonrotationally symmetric aberrations of off-axis two-mirror astronomical telescopes induced by axial misalignments

doi:10.1364/ao.57.001399

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	Nonrotationally symmetric aberrations of off-axis two-mirror astronomical telescopes induced by axial misalignments
	Ju, G. H.; Yan, C. X.; Gu, Z. Y.; Ma, H. C.
	2018
发表期刊	Applied Optics
ISSN	1559-128X
卷号	57 期号:6 页码:1399-1409
摘要	In unobscured off-axis astronomical telescopes with an offset pupil, the effects of axial misalignments are very different from those in on-axis ones. Specifically, a series of nonrotationally symmetric aberrations with characteristic field dependence will be induced by axial misalignments. This paper takes off-axis two-mirror astronomical telescopes as an example to discuss the field characteristics of several important nonrotationally symmetric aberrations (including astigmatism, coma, and trefoil aberration) induced by axial misalignments in off-axis astronomical telescopes. The expressions of these aberrations are derived under some approximations. The accuracy of the proposed expressions is demonstrated. The specific field characteristics of these aberrations are presented and explicated. It is shown that the effects of axial misalignments bear strong similarities to the effects of the lateral misalignments in the symmetry plane of the off-axis system. On the other hand, the inherent relationships between astigmatism and coma induced by axial misalignments are further revealed, which are different from those induced by lateral misalignments. This fact presents the possibility of separating the effects of axial misalignments and lateral misalignments. Most of this work can be extended to other off-axis astronomical telescopes with more freedom. (c) 2018 Optical Society of America
关键词	5th-order optical aberrations rotational symmetry systems alignment fields performance Optics
DOI	10.1364/ao.57.001399
收录类别	SCI ; EI
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/61080
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Ju, G. H.,Yan, C. X.,Gu, Z. Y.,et al. Nonrotationally symmetric aberrations of off-axis two-mirror astronomical telescopes induced by axial misalignments[J]. Applied Optics,2018,57(6):1399-1409.
APA	Ju, G. H.,Yan, C. X.,Gu, Z. Y.,&Ma, H. C..(2018).Nonrotationally symmetric aberrations of off-axis two-mirror astronomical telescopes induced by axial misalignments.Applied Optics,57(6),1399-1409.
MLA	Ju, G. H.,et al."Nonrotationally symmetric aberrations of off-axis two-mirror astronomical telescopes induced by axial misalignments".Applied Optics 57.6(2018):1399-1409.

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