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	Optimized circularly symmetric phase mask to extend the depth of focus
	Feng Zhou ; Ran Ye ; Guangwei Li ; Haitao Zhang ; Dongsheng Wang
	2010-10-12 ; 2010-10-12
关键词	Practical Theoretical or Mathematical/ fast Fourier transforms Fourier transform optics optical design techniques optical focusing optical images/ circularly symmetric phase mask depth-of-focus free form rational function axial intensity distribution fast Fourier transform algorithm imaging performance/ A4230K Fourier transform optics A0260 Numerical approximation and analysis A4215E Optical system design
中文摘要	We propose a novel design method for a circularly symmetric phase mask to extend the depth of focus. Using the free-form rational function as the solution space, we optimize the profile of the phase mask by analysis of the axial intensity distribution, which can be calculated efficiently by employing the fast Fourier transform algorithm. Numerical comparisons prove the resulting rational phase mask psila s superiority to the existing quartic phase mask in intensity distribution and imaging performance.
语种	英语
出版者	Optical Society of America ; USA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/80370]
专题	清华大学
推荐引用方式 GB/T 7714	Feng Zhou,Ran Ye,Guangwei Li,et al. Optimized circularly symmetric phase mask to extend the depth of focus[J],2010, 2010.
APA	Feng Zhou,Ran Ye,Guangwei Li,Haitao Zhang,&Dongsheng Wang.(2010).Optimized circularly symmetric phase mask to extend the depth of focus..
MLA	Feng Zhou,et al."Optimized circularly symmetric phase mask to extend the depth of focus".(2010).

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