Diffraction of a vortex beam by rotationally symmetric superposition of Fermat-spiral pinholes array

Shun Tian; Zilong Zhang; Changming Zhao; Kun Gui; Haiyang Zhang

doi:10.1364/FIO.2019.FW5F.3

Frontiers in Optics + Laser Science APS/DLS
OSA Technical Digest (Optica Publishing Group, 2019),
paper FW5F.3
•https://doi.org/10.1364/FIO.2019.FW5F.3

Diffraction of a vortex beam by rotationally symmetric superposition of Fermat-spiral pinholes array

Shun Tian, Zilong Zhang, Changming Zhao, Kun Gui, and Haiyang Zhang

Frontiers in Optics 2019

Washington, DC United States
15–19 September 2019
ISBN: 978-1-943580-67-5

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S. Tian, Z. Zhang, C. Zhao, K. Gui, and H. Zhang, "Diffraction of a vortex beam by rotationally symmetric superposition of Fermat-spiral pinholes array," in Frontiers in Optics + Laser Science APS/DLS, OSA Technical Digest (Optica Publishing Group, 2019), paper FW5F.3.

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Abstract

Diffraction property of a vortex beam passing through a diffraction plate with rotationally symmetric superposition of Fermat-spiral pinholes array is investigated experimentally. Diffracted beam is focused by a lens and beam patterns’ variations are observed.

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