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题名:
Self-calibrating phase measurement based on diffraction theory and numerical simulation experiments
作者: Zhou, Liao1,2,3,4; Qi, Qiu2; Hao, Xian1,3
刊名: Optical Engineering
出版日期: 2015
卷号: 54, 期号:2, 页码:141736
学科分类: Calibration - Computation theory - Computer simulation - Mirrors - Numerical models - Phase measurement - Pistons
DOI: 10.1117/1.OE.54.2.025116
通讯作者: Zhou, Liao
文章类型: 期刊论文
中文摘要: To achieve a full-aperture, diffraction-limited image, a telescope's segmented primary mirror must be properly phased. Furthermore, it is crucial to detect the piston errors between individual segments with high accuracy. Based on the diffraction imaging theory, the symmetrically shaped aperture with an arbitrarily positioned entrance pupil would focus at the optical axis with a symmetrical diffraction pattern. By selecting a single mirror as a reference mirror and regarding the diffraction image's center as the calibration point, a function can be derived that expresses the relationship between the piston error and the distance from the center of the inference image to the calibration point is linearity within one-half wavelength. These theoretical results are shown to be consistent with the results of a numerical simulation. Using this method, not only the piston error, but also the tip'tilt error can be detected. This method is simple and effective; it yields high-accuracy measurements and requires less computation time. © The Authors.
英文摘要: To achieve a full-aperture, diffraction-limited image, a telescope's segmented primary mirror must be properly phased. Furthermore, it is crucial to detect the piston errors between individual segments with high accuracy. Based on the diffraction imaging theory, the symmetrically shaped aperture with an arbitrarily positioned entrance pupil would focus at the optical axis with a symmetrical diffraction pattern. By selecting a single mirror as a reference mirror and regarding the diffraction image's center as the calibration point, a function can be derived that expresses the relationship between the piston error and the distance from the center of the inference image to the calibration point is linearity within one-half wavelength. These theoretical results are shown to be consistent with the results of a numerical simulation. Using this method, not only the piston error, but also the tip'tilt error can be detected. This method is simple and effective; it yields high-accuracy measurements and requires less computation time. © The Authors.
收录类别: SCI ; Ei
语种: 英语
WOS记录号: WOS:000350481900034
ISSN号: 0091-3286
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/6435
Appears in Collections:自适应光学技术研究室(八室)_期刊论文

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作者单位: 1. Chinese Academy of Sciences, Laboratory on Adaptive Optics, Institute of Optics and Electronics, Chengdu, China
2. University of Electronic Science and Technology of China, School of Optoelectronic Information, Chengdu, China
3. Chinese Academy of Sciences, Key Laboratory on Adaptive Optics, Chengdu, China
4. University of Chinese Academy of Sciences, Beijing, China

Recommended Citation:
Zhou, Liao,Qi, Qiu,Hao, Xian. Self-calibrating phase measurement based on diffraction theory and numerical simulation experiments[J]. Optical Engineering,2015,54(2):141736.
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