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Proceedings Paper

Numerical analysis of focal depth for continuous phase filters
Author(s): Xiaofeng Zhao; Yinpeng Wei; Hongcai Li; Changqing Liu; Zhili Zhang
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Paper Abstract

The scalar diffractive theory for Gaussian beam has been taken into account to investigate the PSF of the focal plane. The simple slowly varying phase-only pupil filters are adopted to provide specific numerical descriptions to control the DOF of the optical systems. Simulated results of the continuous phase-only pupils in both axial and transverse directions have been presented. The impact of the structure parameters of pupil a and b on the performances of the light intensity distribution is discussed. Furthermore, some useful advices for the design of super-resolving pupils to increase DOF of the optical system based on Gaussian beam are given.

Paper Details

Date Published: 24 October 2017
PDF: 6 pages
Proc. SPIE 10460, AOPC 2017: Optoelectronics and Micro/Nano-Optics, 104600Y (24 October 2017); doi: 10.1117/12.2284395
Show Author Affiliations
Xiaofeng Zhao, Xi’an Research Institute of High Technology (China)
Yinpeng Wei, Xi’an Research Institute of High Technology (China)
Hongcai Li, Xi'an Research Institute of High Technology (China)
Changqing Liu, Xi'an Research Institute of High Technology (China)
Zhili Zhang, Xi'an Research Institute of High Technology (China)

Published in SPIE Proceedings Vol. 10460:
AOPC 2017: Optoelectronics and Micro/Nano-Optics
Min Qiu; Min Gu; Xiaocong Yuan; Zhiping Zhou, Editor(s)

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