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	Design of twin computer-generated hologram for absolute testing of aspheric surfaces
	Feng, Jie1,2; Deng, Chao1; Xing, Tingwen1
	2014
会议名称	Proceedings of SPIE: 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment
会议日期	2014
卷号	9282
页码	92821M
通讯作者	Feng, Jie
中文摘要	Testing of aspheric surfaces by means of computer-generated holograms(CGHs)is well known. To perform an absolute test of rotationally symmetric aspheric surfaces, a specially designed computer-generated hologram (CGH) that reconstructs an aspherical wave as well as a spherical auxiliary wave. Since both phase functions have the same symmetry and their pattern is simultaneously encoded, we call this type of multiplex hologram a Twin-CGH. The spherical wave is used for calibration. The design principle of Twin-CGH is introduced in this paper. We mathematically analyze the Twin-CGH constructed by taking the phase corresponding to the linear combination of two weighted phase functions. We show that this Twin-CGH may be written as a new linear combination for the original phase functions with new weights. Then we absolutely test aspheric surfaces by Twin-CGH. © 2014 SPIE.
英文摘要	Testing of aspheric surfaces by means of computer-generated holograms(CGHs)is well known. To perform an absolute test of rotationally symmetric aspheric surfaces, a specially designed computer-generated hologram (CGH) that reconstructs an aspherical wave as well as a spherical auxiliary wave. Since both phase functions have the same symmetry and their pattern is simultaneously encoded, we call this type of multiplex hologram a Twin-CGH. The spherical wave is used for calibration. The design principle of Twin-CGH is introduced in this paper. We mathematically analyze the Twin-CGH constructed by taking the phase corresponding to the linear combination of two weighted phase functions. We show that this Twin-CGH may be written as a new linear combination for the original phase functions with new weights. Then we absolutely test aspheric surfaces by Twin-CGH. © 2014 SPIE.
收录类别	EI
学科主题	Aspherics - Electron holography - Holograms - Lithography - Manufacture - Optical testing
语种	英语
ISSN号	0277786X
内容类型	会议论文
源URL	[http://ir.ioe.ac.cn/handle/181551/7491]
专题	光电技术研究所_应用光学研究室（二室）
作者单位	1.Laboratory of Applied Optics, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, China 2.University of Chinese Academy of Sciences, Beijing, China
推荐引用方式 GB/T 7714	Feng, Jie,Deng, Chao,Xing, Tingwen. Design of twin computer-generated hologram for absolute testing of aspheric surfaces[C]. 见:Proceedings of SPIE: 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment. 2014.

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