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Design of phase-type soft aperture
Author(s): Mingliang Yao; Jianhong Wu; Kai Wu; Yanfeng Su
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Paper Abstract

The diffraction characteristics of phase-type soft aperture with super-Gaussian transmittance were studied. It was proved that the phase-type soft aperture with super-Gaussian transmittance can improve the near-field intensity distribution of the beam and suppress the diffraction of the beam. Genetic algorithm was used to design the phase-type soft aperture, and was compared with the error diffusion algorithm. The design results demonstrates that the phase-type soft aperture designed by the genetic algorithm has a smaller RMS error and can suppress the diffraction modulation of the intensity in a large spatial range.

Paper Details

Date Published: 18 November 2019
PDF: 7 pages
Proc. SPIE 11188, Holography, Diffractive Optics, and Applications IX, 111882F (18 November 2019); doi: 10.1117/12.2552355
Show Author Affiliations
Mingliang Yao, Soochow Univ. (China)
Jianhong Wu, Soochow Univ. (China)
Kai Wu, Soochow Univ. (China)
Yanfeng Su, China Jiliang Univ. (China)


Published in SPIE Proceedings Vol. 11188:
Holography, Diffractive Optics, and Applications IX
Yunlong Sheng; Changhe Zhou; Liangcai Cao, Editor(s)

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