Numerical analysis of focal depth for continuous phase filters

Xiaofeng Zhao; Yinpeng Wei; Hongcai Li; Changqing Liu; Zhili Zhang

doi:10.1117/12.2284395

24 October 2017 Numerical analysis of focal depth for continuous phase filters

Xiaofeng Zhao, Yinpeng Wei, Hongcai Li, Changqing Liu, Zhili Zhang

Proceedings Volume 10460, AOPC 2017: Optoelectronics and Micro/Nano-Optics; 104600Y (2017) https://doi.org/10.1117/12.2284395
Event: Applied Optics and Photonics China (AOPC2017), 2017, Beijing, China

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.

Citation Download Citation

Xiaofeng Zhao, Yinpeng Wei, Hongcai Li, Changqing Liu, and Zhili Zhang "Numerical analysis of focal depth for continuous phase filters", Proc. SPIE 10460, AOPC 2017: Optoelectronics and Micro/Nano-Optics, 104600Y (24 October 2017); https://doi.org/10.1117/12.2284395

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