Method for measuring the intensity distribution of a small beam spot with phase retrieval

	Method for measuring the intensity distribution of a small beam spot with phase retrieval
	Sun P.; Guo J.; Wang T. F.; Liu L. S.; Feng J. X.
	2014
发表期刊	Optics and Lasers in Engineering
ISSN	ISBN/0143-8166
期号	57 页码:109-113
摘要	A method for measuring the intensity distribution of a small beam spot is presented. The proposed method involves several processes. First, an iterative phase retrieval algorithm is employed to calculate the phase distribution from two known intensity distributions at the out-of-focus distance. Then, based on the obtained phase distribution, the intensity distribution near the small beam spot is computed via the Fresnel-like transform. Finally, by comparing the obtained intensity with the known intensity near the small beam spot, we can determine the accuracy of our results. A simple model is established and the feasibility of the proposed approach is demonstrated. (C) 2014 Elsevier Ltd. All rights reserved.
收录类别	SCI ; EI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/44154
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Sun P.,Guo J.,Wang T. F.,et al. Method for measuring the intensity distribution of a small beam spot with phase retrieval[J]. Optics and Lasers in Engineering,2014(57):109-113.
APA	Sun P.,Guo J.,Wang T. F.,Liu L. S.,&Feng J. X..(2014).Method for measuring the intensity distribution of a small beam spot with phase retrieval.Optics and Lasers in Engineering(57),109-113.
MLA	Sun P.,et al."Method for measuring the intensity distribution of a small beam spot with phase retrieval".Optics and Lasers in Engineering .57(2014):109-113.

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