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Optics Letters

Optics Letters


  • Vol. 28, Iss. 22 — Nov. 15, 2003
  • pp: 2174–2176

Circular Dammann grating

Changhe Zhou, Jia Jia, and Liren Liu  »View Author Affiliations

Optics Letters, Vol. 28, Issue 22, pp. 2174-2176 (2003)

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A circular Dammann grating that can produce circular equal intensities at various orders in the far field is described. A set of parameters such as order, circular number, uniformity, and diffraction efficiency has been defined to describe the novel diffractive phase elements. Numerical solutions of binary-phase (0, π) circular Dammann gratings are given. The results of experiments with a four-order circular Dammann grating made by a lithographic technique are presented. This novel diffractive optical element should be highly interesting in a wide variety of practical applications.

© 2003 Optical Society of America

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(070.2580) Fourier optics and signal processing : Paraxial wave optics
(110.5220) Imaging systems : Photolithography
(120.5060) Instrumentation, measurement, and metrology : Phase modulation
(230.1360) Optical devices : Beam splitters

Changhe Zhou, Jia Jia, and Liren Liu, "Circular Dammann grating," Opt. Lett. 28, 2174-2176 (2003)

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