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Journal of Zhejiang University SCIENCE A 2007 Vol.8 No.2 P.180-185

http://doi.org/10.1631/jzus.2007.A0180


Simple PSF based method for pupil phase mask’s optimization in wavefront coding system


Author(s):  ZHANG Wen-zi, CHEN Yan-ping, ZHAO Ting-yu, YE Zi, YU Fei-hong

Affiliation(s):  State Key Laboratory of Modern Optical Instrumentation, Optical Engineering Department, Zhejiang University, Hangzhou 310027, China

Corresponding email(s):   feihong@zju.edu.cn

Key Words:  Wavefront coding, Pupil phase mask, Depth of focus, PSF stability, Optimization, Sharpness, Imaging simulation


ZHANG Wen-zi, CHEN Yan-ping, ZHAO Ting-yu, YE Zi, YU Fei-hong. Simple PSF based method for pupil phase mask’s optimization in wavefront coding system[J]. Journal of Zhejiang University Science A, 2007, 8(2): 180-185.

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author="ZHANG Wen-zi, CHEN Yan-ping, ZHAO Ting-yu, YE Zi, YU Fei-hong",
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year="2007",
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doi="10.1631/jzus.2007.A0180"
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%T Simple PSF based method for pupil phase mask’s optimization in wavefront coding system
%A ZHANG Wen-zi
%A CHEN Yan-ping
%A ZHAO Ting-yu
%A YE Zi
%A YU Fei-hong
%J Journal of Zhejiang University SCIENCE A
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%P 180-185
%@ 1673-565X
%D 2007
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2007.A0180

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T1 - Simple PSF based method for pupil phase mask’s optimization in wavefront coding system
A1 - ZHANG Wen-zi
A1 - CHEN Yan-ping
A1 - ZHAO Ting-yu
A1 - YE Zi
A1 - YU Fei-hong
J0 - Journal of Zhejiang University Science A
VL - 8
IS - 2
SP - 180
EP - 185
%@ 1673-565X
Y1 - 2007
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2007.A0180


Abstract: 
By applying the wavefront coding technique to an optical system, the depth of focus can be greatly increased. Several complicated methods, such as Fisher Information based method, have already been taken to optimize for the best pupil phase mask in ideal condition. Here one simple point spread function (PSF) based method with only the standard deviation method used to evaluate the PSF stability over the depth of focus is taken to optimize for the best coefficients of pupil phase mask in practical optical systems. Results of imaging simulations for optical systems with and without pupil phase mask are presented, and the sharpness of image is calculated for comparison. The optimized results showed better and much more stable imaging quality over the original system without changing the position of the image plane.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

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